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THE COMPUTER DIRECTORY AND BUYERS' GUIDE, 1957 the June, 1957 issue of ((Computers and Automation" Part 1 : Roster of Organizations in the Computer Field (cumulative) Part 2 : Buyers' Guide for the Computer Field: Products and Services for Sale or Rent (cumulative) Part 3 : A Pictorial Instruction to Computers SOLUTION: , PROBLEM: Magnetic Core Memory Planes by , Genera' Ceramics ••• far exceeded the requirements, won immediate acceptance of leading computer manufacturers. Provide a reliable memory storage facility for digital computers •.• high speed, absolute dependability, compact size essential. Completely Assembled Coincident-current Magnetic Memory Planes for Computers, Switching and Automatic Control Systems General Ceramics FERRAMIC® MAGNETIC MEMORY PLANES Utilizing Ferramic Magnetic Memories resulted in important increases in reliability, speed and accuracy in actual operation. In addition, designers found space requirem~nts sharply reduced. Lower power consumption, lighter weight, elimination of heat dissipating devices and greatly reduced maintenance were other significant improvements. General Ceramics Magnetic Memories offer a solution to similar problems in automatic control systems for conveyors, elevators, telephony, production machines, processing equipment and signalling. For further details, write General Ceramics Corporation, Keasbey, New Jersey. Please address inquiries to Dept. E. _a41im'GiiZMM'W 1 ! Completely assembled standard type memory~frames available from stock. Memory Frames of special design can be produced to your specifications. Iltdustrial Ce'~mics far fndustriat'Progr'$$ ••• Sincf 1906 0000 00 00 '\'1~ -.,~.,.:..--:-:; FERRAMIC CORES FERRAMIC MAGNETIC CORES PRECISION STEATITES "ADVAC" HIGH TEMPERATURE SEALS SOLDERSEAL TERMINALS R THpromoted these men I Computer Logical Design Engineer:, Before his recent promotion, this man was responsible for determining the broad systems outline of an electronic computer and its interconnection with external equip. ment. "In this job," he says, "you tailor such characteristics as computer speed, memory, size and arithmetic structure to the requirements of the computer system." He maintai~ed close liaison with mathematical 'support, circuit designers, packaging and test engineers. Quality Control Engineer: Also promoted recently, this man worked in Manufacturing Engineering. He was responsible for the performance of IBM electronic computers and other business machines. "The problems of Quality Control in this company are endless - and fascinating," he says. "You may be concerned with transistors and cores ... gaseous electronics ... diffraction of alloys ... reliability studies. There's always sbmething new-in this new and progressive field!" Could y'ou handle their responsibilities? Jobs like these continually -open up at IBM-due to rapid expansion. If you are an engineer or scientistor have equivalent experience-you may qualify for such a position. Innumerable opportunities exist in: • Computer systems planning • Computer systems testing • Electronic circuit design and packaging • Electrostatic phenomena • Manufacturing process control • Numerical analysis and programming • Photo and magnetic device memory fast-growing field, have doubled, on the average, every five years since 1930. Engineering laboratory personnel has quintupled in the past five years. IBM's excellent salaries and employee-benefit programs are instrumental in achieving an employee turnover rate far below the national average. • Real time systems engineering • Semi-conductor research, development and manufacturing • Test equipment design The electronic computer field oHers one of the best ground-floor opportunities today. Economic experts rank it with aufomation and nucleonics in growth potential. Sales at IBM, the recognized leader in this For the facts about an engineering career with IBM, just write, outlining background and interests, to: Mr. R. A. Whitehome Mgr. of Engineering Recruitment, Department 7106 International Business Machines Corporation 590 Madison Avenue, New York 22, N. Y. 1P.!ft. '---_D_A_T_A _ _ _~ ~ PROCESSING DATA PROCESSING ELECTRIC TYPEWRITERS MILITARY PRODUCTS SPECIAL ENGINEERING PRODUCTS TIME EQUIPMENT Plants and la~oratories: Endicott, Kingston, Owego, Poughkeepsie, N. Y.; Lexington, Ky.; Rochester, Minn.; San Jose, Calif. COMPUTERS CYBERNETICS ROBOTS • AUTOMATION AND • AUTOMATIC CONTROL Vol. 6, No. 6 June, 1957 ESTABLISHED SEPTEMBER, 1951 THE COMPUTER DIRECTORY AND BUYERS' GUIDE, 1957 Part 1: Roste-r of Organizations in the Computer Field (cumulative) 9 Part 2: The Buyers' Guide for the Computer Field: Products and Services for Sale or Rent 40 Part 3: A Pictorial Introduction to Computers 49 The Editor's Notes Index of Notices News Items Advertising Index 6 6 93 102 Editor: F..dr.mnd C. Berkeley Assistant Edi tors: Neil D. Macdonald) F.L. Walker Contributing Editors: Andrew D Booth, John W. Carr,III, Alston S. Householder Advisory Committee: Samuel B. Williams. Herbert F. Mitchell Jr., Howard T. Engstrom, Alston S. Householder, H. Jefferson Mills, Jr. Sales and Service Manager: Milton L. Kaye, 601 Madison Ave., New York 22, N.Y. - Plaza 5-4680 Advertising Representatives: New York - Milton L. Kaye, 601 Madison Ave., New York 22, N.Y., Plaza 5-4680 San Francisco - W.A. Babcock, 605 Market St., San Francisco 5, Calif., Yukon 2-·3954 Los Angeles - Wentworth F. Green, 439 So. Western Ave., Los Angeles 5, Calif., Dunkirk 7-8135 Elsewhere - the Publisher Publisher: Berkeley Enterprises, Inc., 815 Washington St., Newtonville 60, Mass., Decatur 2-5453 or 2-3928 C~tPurERS AND AlITOMATION is published monthly. Copyright, 1957, by Berkeley Enterprises, Inc. Subscription rates: in the United States - one year $5.50, two years SI0.50; in Canada - one year $6.00, two years SII.~ elsewhere - one year $6.50, two years $12.50 Entered as second class matter at the Post Office, New Yo~k, N.Y. - 4- ========:;~==> ::a, C.A. FE::a, ::a, :J: T E S <============~== STANDARD SETTERS FOR PRODUCTION CONFORMANCE ... OPERATING PERFORMANCE Reproducible uniformity, repeatability-cali it what you will-this vital phase of ferrite production reaches its highest state at RCA. From initial "firing" to final test- o 0 °0 00 ing, every process and measurement is controlled to the highest degree of accuracy ... your RCA MEMORY CORES. _ . O.OBI-inch dia. high speed, high-drive toroidal ferrite cores, and O.OBO-inch dia. medium speed low-drive toroidal ferritp cores. Both types are characterized by hysteresis loops which provide reversal of magnetic-flux polarity when the correct current combination from two associated magnetized windings are coincidentally energized. These ferrite cores are primarily designed for use in matrices of the coincident-current type for applications as storage devices in digital computers. RCA TRANSFLUXORS ... this developmental memory device, originated by RCA, utilizes a ferrite core, has two apertures, and exhibits a nearly rectangular hysteresis loop. It can control the transmission of ac power according to a level established by a single setting pulse. It furnishes an output determined by the stored pulse for an indefinite length of time. Once set the TRANSFLUXOR does not require an input command to furnish output intelligence. assurance that every RCA production unit conforms and performs to the most precise tolerances mechanically and electrically. for television, radar and industrial TV, "C" frames, yoke segments and toroids in standard or superefficient types. RCA DEFLECTION FERRITES ••. @ RCA MAGNETOSTRICTIVE FERRITES ..• cores for use in electromechanical filters ... especially suited to transistor circuitry . .. much improved efficiency over use of nickel. For further information on RCA Ferrites, and for assistance in determining the applications to which you can put these precision-engineered ~~ ~;;~~ Y;~;;i;;~;;;;;n~a; ::;;;;;~ ~ ® COMPONENTS DIVISION CAMDEN, N. J. THE EDITOR'S PRINTING BY LETTERPRESS AND OTHER CHANGES Beginning with July, regular issues of "Computers and Automation" will be printed by letterpre ss and will no longer be printed by photooffset. We now have over 2600 subscribers allover the world, and have reached the place where letterpress printing of regular monthly issues makes sense. We think there will be a considerable improvement in appearance and legibility, which we hope our readers and our advertisers will both like. We expect that there will be an increase of the amount of information published in each issu~, although because of the condensation possible with printing type there may be fewer pages. (Note: Unusually large issues may still be photooffset.) We shall as always keep trying to improve "Computers and Automation" so that we may continue to serve loyally the be st intere sts of computer people. All suggestions from our readers are always welcome. In fact, another change we are considering is changing the name of the magazine. Perhaps the name "Computers and Data Processing" or "Computers and Data Automation" would be more suitable. If you have comments, please let us hear from you. THE COMPUTER DffiECTORY AND BUYERS' GUIDE, 1957 The third edition of "The Computer Directory", the June issue of "Computers and Automation", is here presented; 104 pages long~ with the hope that it will prove essential to the work of people in the computer field. NOTES This Roster is, as we have mentioned before, the reason for our existence as a magazine, since our first issue, Vol. 1 No. 1 in September 1951, consisted only of a purple ditto, list of organizations in the computer field. "Part 2, Buyers' Guide for the Computer Field: Products and Services for Sale or Rent", contains about 1370 entries on 39 pages. This is larger than last year's, which contained slightly over 700 entries on 35 pages. The main reason for the rather large increases in these figures is that this year we have made rather a careful search through many publications for new organizations, new products, and new services that might be listed in our rosters. The inclusions have been more on the wide and unselective side than on the narrow and selective side - because a user of information will always find it easier to exclude a suggested name from a list than to rack his brains to include additions missing from a list. "Part 3, A Pictorial Introduction to Computer s", included in the directory this year, is an effort to show a little more visually than by words alone what some of the kinds of products in the computer field look like. A revised and up-to-date "Roster of Automatic Computers", which was included in the directory last year, is not included this year, but will be published in an early issue of "Computers and Automation" • As usual, we ask our readers to be kind enough to tell us of additions, corrections, and revisions, so that we can continue to make the reference information that we publish useful and reliable. "Part 1, Roster of Organizations in the Computer Field", contains about 795 entries on 30 pages. This is larger than last year's; which contained about 370 entries on 18 pages. *---------*----------* INDEX OF For Information on: Advertising Index Back Copies Bulk Subscription Rates Manuscripts Reader's Inquiry Form Special Issues Many of these entries have been based on information provided by the organization itself, and have been improved from time to tim e as change s have been reported. Many other entries are new; and some perhaps are borderline entries, as for example organizations making magnetic recording tape, who may be much more in the acoustic field than in the computer field. NOTICES See Page: 102 39, 91 92 96 100 72 Address Changes: If your address changes, please send us both your new and your old address (torn off from the wrapper if possible), and allow three weeks for the change. - 6 - MISSILE SYSTEl\tIS EI.. ECTRONICS Activities at Lockheed Missile Systems' Research Laboratory in Palo Alto cover virtually every field of electronics related to missile systems. Inquiries are invited from those who desire to perform research and development of a most advanced nature. Please address the Research and Development Staff. Sunnyvale 3, California. Here staff members discuss a laboratory model of an airborne component of a guidance system. Left to right: Dr. R. J. Burke, telemetering; E. A. Blasi, antennas; K. T. Larkin, radar and command guidance,· Dr. S.B.Batdorf, electronic division head,· Dr. H.H.Leifer, solid state; S.Janken, product engineering. MISSII-/ .C 57 EASE computer (Electronic Analog Simulating EquipmenU for solving equations, simulating syst~ms, etc. Network of computing facilities over the country. Ls(850) Se(1946) Ac R!iI..sCa BERKELEY ENTERPRISES, INC., 815 Washington St., Newtonville 60, Mass. / DEcatur 2-5453 or 2..;.3928 / ·C 57 Small robots, robot sho~stoppers, etc. Logical design, applications, marketing, etc., of automatic information-handling machinery. Publisher of "Computers and Au tomation" and other publications. Ss (6) Se(I95~ Dc RCMSa (Affiliated with Edmund C. Berkeley & Associates) , Berkshire Laboratories, 732 Bank Village, Greenville, N.H. / Greenville III / ·C Special computer components. Ss Se(1949) lAc RMCa' Berndt-Bach, Inc., Auricon Div., 971"N. Mansfield, Hollywood 38, Calif. Recording equipment, magnetic tape recorders. Ic REa Bill Jack Scientific Instrument Co. -- SEE under J Birkbeck College, University of London, 21 Torrington Sq., London W.C. I, England / Langham 1912 / ·C Maker of ARC, APEXC, and SEC digital computers; electronic digital computers. Ss (10 to 20) Se (1946) Dc RCPa Bliley Electric Co., Union Station Bldg., Erie, Pa. Delay lines. Ic RMSa -14 - Boeing Airplane Co., Industrial Products Division -- their Electronic Analog Computer has been transferred to Western Electronic Supply Co., which see. Booz, Allen-and Hamilton, 135 South LaSalle St., Chicago 3, Ill. and other cities / Financial 6-1900(each city) / ·C 57 Management consultants; complete service in applications of integrated and electronic data processing to management control systems in business, industry, and governmen t. Ms (450) Le (191~ DAICc RCPa George W. Borg Corp., Borg Equipment Div., 120 S. Main St., Janesville, Wisc. Ic RMSa Potentiometers. BJ Electronics, Borg~arner Corp., P. O. Box 1679, 3300 Newport, Santa Anna, Calif. / Ki 5-5581 / ·C 57 Digital data systems, "vlbrotron" transducers, memory drums, shaft position digitizers. MS(450) Ke(this division, 1944; company, 1910) DIc RMSCa Borg~arner Corporation -- SEE BJ Electronics Byron Jackson Division -- SEE BJ Electronics, Borg~arner Corp. Bourns Laboratories, 6135 Magnolia Ave., Riverside, Calif. Potentiometers. Ic RMSa Bowles, Andrews & Towne, 1389 Peachtree St., N.E., Atlanta 9, Georgia / Trinity 5-7421 / (also Richmond" and New York) ·C 57 Actuaries, consultants, IBM 650 electronic data-processing and computing service. Ss (48) Se (1948) Ic RCPa Bowmar Instrument Corp., 2415 Pennsylvania St., Fort Wayne 4, Ind. I Anthony 1463 / *C Mechanical computer components. Ms (55) Se (195D Ic RMSa Bowser, Inc., 33 No. LaSalle St., Chicago, Ill. / Andover 3-4322 / and subsidiaries / ·C Electrofile: electro-mechanical file card selectors. Xacto: computing liquid flow meters, mechanical. Xactronic: computing liquid flow meters, with electronic sensing. Blenders and proportioners for automation of liquid process plants; liquid controls; money-meter machines; many other products. Ls (4000) Le (1885) Ic RCMSa Bradley Laboratories, Inc., 168 Columbus Ave., New Haven, Conn. / Main 4-3123 / ·C Selenium rectifier kits, high temperature rectifiers. Selenium diodes, copper oxide Ms(125) diodes, limiters, modulators. Me (1939) Ic REa Richard D. Brew and Company, Inc., 90 Airport Rd., Concord, N.H. / Capitol 5-6606 / ·C Distributed constant, lumped constant and ultrasonic delay lines. Ss (36) Me (1939) Ic REa Brick Electronic Equipment Co., Norwood, N.J. Facsimile equipment; receiving and transmitting; sensitized paper. Ss Se Ic REa Harry P. Bridge Co., 1201 Chestnut St., Phila. 7, Pa. / Locust 8-0330 / ·C 57 Marketing, sales, sales promotion, advertising, merchandising, market research, etc., in "the computer field. Consultants; advertis ing agency. Ss (12) Me (193» Ic RCPSa Organizations TIlE BRISTOL CO., Waterbu~y 20, Conn .. / Plaza 6-4451 / *C 57 Automatic recording, indicating, controlling, and telemetering instruments, and components. Electronic recording potentiometers; instruments for automatic control and automation .. Choppers. Socket screws for computers. ?s Le (1889) CIc RMSa BRITISH TAIIJLATING MAOIINE 00., LTD., 17 Park Lane, London W. 1, England / Hyde Park 8155 / ·C 57 Punched card machines. Ls (7000) Le (1907) Dc RMS(l»a British Electronic Sales, New York -- moved leaving no address. Brown University Computing Laboratory, Division of Applied Mathematics, Providence 12, R.I. / ·C 57 Computing service, instruction, research. Ss Se Ic RCMSa Brubaker Electronics, Inc., 3652 Eastham Dr .. , Culver City, Calif .. Delay lines. Ic RMSa Brush Electronics Co., 3405 Perkins Ave., Cleveland 14, Ohio / ·C Recording analyzers. Magnetic heads and drums. Decades. Tape transports.. '~ape Drum", memory storage device.. Computer components.. Ls (13)() Le(1921) Ic RM5a I£YANT GI4iE & SPINDIE DIV., BOX 620P. Springfield. Vt., Division of Bryant Chucking Grinder Magnetic Drums with speeds up to 200,000 RPM, capacity up to 5 million bits, super-precision bearings. Magnetic Memory.. Drums, Precision Electro Mechanical Devices, High Speed Motors, Drums, Discs, Tape Trans ports, Machine Tool' S plnd les • lis (200) Le Ic Rr.5 a Bull S. A. Compagnie des Machines, 94 Avenue Gambetta, Paris 2Oe, France / MEN 8158 / .C Punch card machines.. Commercial electronic computers and card-programmed scientific compu ters .. Ls (2500) Me (1931) Dc RMSa J .. H.. Bunnell & Co .. , 81 Prospect St .. , Brooklyn 2, N.Y. ' Facsimile equipment, recording equipment .. Ic RMSa Bureau of the Census, Washington 25, D.. C.. / .C Statistical data processing by electronic computing system (Univacs), by commercial punch-card equipment, and by special machines Ms (400 in designed and built for own use.. electronic and mechanical processing primary organization units) Le(1890 in punch card field} Dc RCPGa IIJRLIMiAME ASSOCIATES, LTD., 103 Lafayette St., New York 13, N.Y. / DIgby 9-1240 / ·C 57 Analog computers, computing accessories, X-Y plotters, multichannel recorders, digital voltmeters, card-to-tape converters, magnetic shift registers, magnetic storage systems, high speed digital display.. Ss(3O) Me(l928) DAIc Sa Burndy Corp .. , Omaton Division, Norwalk, Conn .. / TEmple 8-4711 / *C 57 Electrical connectors, and electronic components; related hand, hydraulic, pneumatic, and automatic tooling. Ls(2000) Le(192~ Ic RMSa Burnell & Co., Inc .. , 45 Warburton Ave .. , Yonkers 2, N.Y. Delay Lines. Ic RM5a Burroughs Corporation, 6071 Second Ave., Detroit, -15 - Mich. / Triangle 5-2260 / and elsewhere / ·C Automatic electronic digital computers, UDEC, ElOl. Adding machines, bookkeeping machines, etc. Electronic digital test computers. Fast access magnetic core memory.. Pulse control components, servomechanisms, etc.. This company owns Control Instrument Co .. , ElectroData Corp .. , and Adalia Ltd.. Ls (19,000) Le(1896) DSc RMSPa Burroughs Corp" Electronic Instruments Div., 1209 Vine St .. , Philadelphia, Pa. / Locust 7-1401 Electronic computing equipment: large automatic digital computer, UDEC; small ?s?e automatic digital computer, ElOl. Dc MSa Burroughs Corporation, Research Center, Paoli, Pa. / Paoli 3500 / ·C Computer research and development. Computing service; digital. Development of data handling equipment and systems for business, industry, government. Ls(lOOO) Se (1948) Dc RCP A IIJSINESS ELECTRONICS, INC., 420 Market St., San Francisco II, Calif. I DOuglas 2-0894 / ·C 57 Home study courses in programming for computers, and applications of business problems to compu ters • Ss (8) Se (1955) DIc RCPa Bussey Research Laboratories, Inc .. , Bldg. 629, Greater Rockford Airport, Rockford, Ill. / 5-6843 / ·C 57 Industrial research and development service, applied magnetics research.. Ss Me(1941) Ic RCa California Computer Products, 3927 West Jefferson Blvd .. , Los Angeles 16, Calif .. Digital point plotter (CCP 70l) and other equipment.. DAc RMSa Cambridge Thermionic Corporation, 445 Concord Ave .. , Cambridge 38, Mass. / TRowbridge 6-2~ / ·C Componen ts for compu ters • Ms (1SO) lie (1940) Ic Rr.6Ca Cambridge University, Mathematical Laboratory, -see University of Cambridge, University Mathematical Laboratory. . Canadian Marconi Co., Ltd., Toronto 17, Ontario, Canada Potentiometers Canadian Westinghouse Co., Ltd., Electronics Div., Hamilton, Ont., Canada Magnetic cores. CANNING, SISSON AND ASSOCIATES, 1140 South Robertson Blvd .. , Los Angeles 35, Calif. / BRadshaw 2-8425 / ·C 57 Design and installation of business systems. Consultants. Application of electronic computers and other automatic data-processing equipment. Publisher of "Data Processing Digest". Ss (6) Se (1954) DACc RCPa Canoga Corp., 5955 'Sepulveda Blvd., Van Nuys, Calif. / STate 6-9010 / ·C 57 Computer components. Ms(lSO) Se(1948) DA IS CMc RMa Capitol Radio Engineering Institute, Inc., 3224 16th St., N.W., Washington 10, D.C. Computers anll Automation Courses by mail; Servo, computer, introduction to navigational systems and principles of leadership assignments. Ic RPa Capitol Records, Inc., 151 W. 46th St., New York 36, N.Y. Magnetic tape recorders. Ls Me Ic Ma Carbide and Carbon Chemicals Company-AEC, Numerical Analysis Department, P. O. Box P, Oak Ridge, 'Tenn. / LD-220, X8671 / *C Numerical analysis using digital computers. 55 (35) Se (948) Dc RG a Carstedt Research, Inc., 2501 E. 68th St., Long Beach, Calif. Magnetic cores. Ic Ra CBS-HYTRON, Division of Columbia Broadcasting System, Inc., 100 Endicott St., Danvers, Mass. / Spring 4-2360 / *C 57 Electron tubes and semiconductors for computer and other uses. Ls(6000) Le(1921) Ic Ma CBS International, 485 Madison Ave., New York 22, N.Y. Diodes; magnetic tape; transistors. Cedar Engineering, Inc., 5806 W. 36th St., Minneapolis, Minn. Analog Computers. Celco, Constantine Engineering Laboratory Co., Island Ave. / Mahwah, N.J. Delay lines. Centralab, Div. of Globe-Union Inc., 960 E. Keefe Ave., Milwaukee I, Wisc. Capacitors. Resistors. Ic RMSa Century Electronics & Instruments Inc., 133 N. Utica, Tulsa 10, Okla. Magnetic tape recorders. See Century Geophysical Corp. Ic RMSa Century Engineers, Inc., 2741 N. Naomi St., Burbank, Calif. Analog-to-digital converters; anlog & digital computers; data processing. DAlc RMSa Century Geophysical Corp., 1333 N. Utica, Tulsa, Okla. Data processing. See Century Electronics and Instruments, Inc. Chicago Telephone Supply Corp., Elkhart, Indiana Resistors. Ic RMSa Christie Electric Corp., 3410 W. 67th St., Los Angeles 43, Calif. Rectifiers. Ic RMSa Cinch Manufacturing Corp., 1026 S. Homan Avenue, Chicago 24, Ill. / - / *C Components for computers; tube sockets, connectors, printed wiring boards, terminal boards, etc. Ls (400) Le (924) Ic RMSCa Circuit Engineering, 66 Westland Rd., Weston 93, Mass. / TWinbrook 4-6071 / *C 57 Consultants. Transistor, magnetic, electronic, conductive, and other information handling circuits. Ss Se(1954) Dc Ca Circuit Instruments Inc., 2801 Anvil St. North, Saint Petersburg I, Fla. Potentiometers. Ic RMSa C. P. CLARE & CO., 3101 Pratt Blvd., Chicago 45, Ill. / Ambassador 2-7700 / *C 57 Relays for computer and other uses. Ls(510) Me (937) Ic RMSa Clarostat Mfg. Co., Inc., Dover, N.H. Potentiometers. Ic RMSa Clary MUltiplier Corp., 408 Junipero St., San Gabriel, Calif. / Atlantic 7-6111 / *C Adding and calculating machines, cash regis- ter~t electronic computers, analog-digital converters, input and output equipment for computers, data-reduction systems. Ls(1500) Me (939) DAc RMSa Clevite Brush Development Co., 540 East 105th St., Cleveland 8, Ohio Magnetic tape recorders. Ic RMSa Clevite Transistor Products, 241 Crescent St.4., Waltham 54, Mass. Transistors. Ic RMSa Coilcraft Inc., Jandus Rd., Cary, Ill. Delay lines. Ic RMSa OOLEMAN ENGINEERING 00., INC. t 6040 West Jefferson Blvd., Los Angeles 16, Calif; / TE 0-5811 / *C 57 Digital data handling systems and components; "Digi tizer", device for converting rotational shaft position into electrical contact settings; etc. Operate 'project "SMART" at Hurricane Mesa, Utah'4(1for USAF. Ms (300) Se (1951) DIe RMSa.', Collins Radio Co., 31a.2nd Ave. S. E., Cedar Rapids, Iowa Digital computers; Kineplex high-speed digital transmission·rsystem. DIe RMSa Columbia Broadcasting.. System, Inc. -- SEE CBSHytron Division. Columbia Technical Corp., 61-02 31st Ave., Woodside 77, Queens. N.Y. Delay lines. Ic RMSa Columbian Carbon Co., Mopico Color Div., 601 Cass St., Trenton 10, N.J. Magnetic cores. Ic RMSa Comar Electric Co., 3349 W. Addison St., Chicago 18, Ill. Relays. Ic RMSa Commercial Controls Corp. -- merged with Friden Calculating Corp., which see. Commonwealth Scientific and Industrial Organization, Radiophysics Division, Sydney, New South Wales, Australia Maker of CSIRG Mark I electronic digital computer of Inst. for Advanced Study type. DAc RffiPa Communication Accessories Co., 110 St. & 71 Highway, Hickman Mills, Mo. Delay lines. Ic RMSa Communication Products Co. Inc., Marlboro-Freehold Rd., Marlboro, N.J. Delay lines. Ic RMSa Components Corp., 106 Main St., Denville, N.J. Magnetic tape recorders. Ic RMSa Comptron Corp., 778 Pleasant St., Waverly 19, Mass. / IVanhow 4-8954 / *C 57 Computing services •. Data processing equipment, special purpose. Ss Se(I957) Ole RMSa Computation Centre, University of Toronto -- see University of Toronto, Computation Centre. Computer Company of America, Division of BrunoNew York Industries Corp., 140 Church St., New York 1, N.Y. / Cortlandt 7-1450 / *C Analog computers, differential analyzers, specialized computers and accessories. Ms (125) Me (942) DAc RMSP a Computer Control Co., Inc., 92 Broad St., Wellesley 57, Mass. / WEllesley 5-6620 / and elsewhere / *C 57 Special purpose data processing systems; pa~kaged computing circuits; mathematical services. Ms (00) Se (1953) Dc RMSCa - 16 - Organizations Computer Instruments Corp., 92 Madison Ave., Hempstead, L. I., N.Y. Precision potentiometers. Ic RMSa Computer Measurements Corp., 5528 Vineland Ave., North Hollywood, Calif. Computers. test equipment; translating equipment; digital printer; time-function translators. Dlc R~5a Computers and Automation, 815 Washington St •• Newtonville 60, Mass. Monthly computer and data processing magazine. Ss Se(951) Ic MSa Computing Consultants. Inc., 7 Austell Way, Atlanta 5, Ga. / Exchange 0134 / *C 56 Consultants in the utilization of computers for business. Solution of problems for business. Ss Se(1954) Ic CPa COMPUTING DEVICES OF CANADA LIMITED, P. O. Box 508, Ottawa 4, Ontario, Canada / Parkway 8-1761 / ·C 57 Digital and analog computer sales; large and small scale data processing systems; automatic navigation systems; simulators; computer components. Development of special purpose analog and digital computers and components. Research and development in instrumentation and automatic control. Digital and analog computing and data-processing service; NCR 102D and Bendix G-15D digital computers, Reeves analog computer installed. Consulting services on business applications. Field maintenance service. Ls(500) Se(1948) DASCc RCPMSa , Computyper Corp. -- SEE Friden Calculating Machine Co. Concord Control Inc., 1282 Soldiers Field Road, Boston 35, Mass. Numerical control: development and manufacturing. DICc RMSa Condenser Products Co., Div. New Haven Clock & Watch, 140 Hamilton St., New Haven 4, Conn. Capacitors for computer applications. Ic RMSa Con-Elco, 1711 Mountain Ave., Monrovia, Calif. Potentiometers; resistors. Ic RMSa Connecticut Telephone & Electric Corp., 70 Britannia St., Meriden, Conn. Magnetic tape recorders. Ic R~5a Consolidated Avionics Corp., Canal & Ludlow Sts., Stamford, Conn. Analog-to-digital converters; data processing. Ic RMSa Consolidated Diesel Electric Corp., 880 Canal St., Stamford, Conn. Analog-to-digital converters; analog computers; digital computers; data processing; magnetic drums; punch card machines. DAlc RMSa Consolidated Electrodynamics Corp., (formerly Consolidated Engineering Corp.), 300 North Sierra Madre Villa, Pasadena 8, Calif. / Ryan 1-8421 or Sycamore 6-0173 / *C Digital and analog data-handling and conversion systems (Sadic, Millisadic, etc.). Auto-matic translator magnetic tape to punched card. Transducers, recording oscillographs magnetic tape equipment, data processing systems. Systems engineering. Ls(1550) Me(1937) DAlc RMSa L. L. Constantin & Co., 187 Sargeant Ave., Clifton, N.J. - 17 - Computer components. Ic RMSa Continental Carbon, Inc., 5221 Greene St., Philadelphia 44, Pa. Potentiometers; resistors. Ic RMSa Continental Electric Co., 6 No. Michigan Ave., Chicago, Ill. Rectifiers. Ic RMSa Control Electronics Co., Inc., 1927 New York Ave •• Huntington Station, N.Y. Delay lines. Ic RMSa CONTROL INSTRUMENT CO., 67 35th St., Brooklyn 32, New York / Sterling 8-0658 / *C 57 Fire-control equipment. 900 line-a-minute tabulator. Digital and analog machines and components. Character recognition equipment. Subsidiary of Burroughs Corp. Ls (1200) Me(1934) DAIc RMSa Convair, a Division of General Dynamics Corp., General Offices, San Diego 12, Calif. The charactron shaped-beam output device. Ls Me Ic RMSa Cook Research Laboratories, Division of Cook Electronic Co., 2700 Southport Ave., Chicago 14, Ill. (mail address). 8100 Monticello Ave., Skokie, Ill. (location) / Keystone 9-2060 and Orchard 3-9200 / *C MagnetiC data-recording systems; digital, analog. and hybrid information-processing systems -- particularly for aircraft and airborne applications. Basic and industrial research in servomechanisms, air research, weather reconnaissance, guided missiles, etc. Ms(380) ?e DAlc RCa Corbin Corp., 5419 56 Place, Riverdale, Md. Analog to digital converters; analog and digital computers. DAlc RMSa Cornell-Dubilier Electric Corp., 333 Hamilton Blvd., S. Plainfield, N.J. / Plainfield 6-9000 / *C Test equipment. Components, including capacitors, converters, printed circuits, etc. Ls Le(19l0) Ic RMSa Cornell University, Computing Center, Rand Hall, Ithaca, N.Y. Computing service: digital; card programmed calculator, punch card machines. Dc RCPa Corning Glass Works, 94 Crystal St., Corning, N.Y. Glass capacitors, delay lines, resistors. Ic RMSa Corona Engineering Service, Corona Ave., Elmhurst 73, N.Y. Delay lines. Ic RMSa COUNCIL FOR ECONOMIC AND INDUSTRY RESEARCH, INC., 1200 Jefferson Davis Highway, Arlington 2, Va. / OT 4-6377 / *C 57 Computing services using IBM 704 data processing system, plus auxiliary equipment; Consulting services in design and administration of computer installations; programming services; economic research for government and industry. Ms(70) Se(1952) DAlc RCPa Coxhead Corp., Ralph C. / 720 Frelinghuysen Ave., Newark 5, N.J. Type composing of display types by photography using a desk machine. Varitypers. Ls ?e Ic RMSa Creed & Co., Ltd., Telegraph House, Croydon, England / Croydon 2121 Teleprinter equipment for telecommunication. Also input and output equipment specifically COmputers and Automation intended for association with electronic computers, machine tool, and process control systems. Dlc RMSa Crowley & Co., Inc., Henry L., Subsidiary of Aerovox Corp., One Central Ave., West Orange, N. J. Magnetic cores. Ic RMSa CUBIC CORPORATION, 5575 Kearny Villa Rd., San Diego 11, Calif. Transistorized digital readout systems. Various transistorized plug-in modules for digital logic cuilding. '(S Se Dc RMSa CUDAHY PUBLISHING CO~WANY, 6141 North Cicero Ave., Chicago 30, Ill. / Pensacola 6-8834 / *C 57 Publication of automatic data processing service, weekly, for users of automatic data processing equipment. Ss Se(1956) Ic RMSa Curtiss-Wright Corporation, Electronics Division, Carlstadt, N.J. Electronic flight simulators used by commercial airlines for training flight crews. Other simulators; duplicators. Ls?e Alc RMSa Custom Components, Inc., P. O. Box 248, Caldwell, N.J. Magnetic cores. Ic RMSa Cutler-Hammer, Inc., 315 N. 12th St., Milwaukee 1, Wisc. Relays. Ic HMSa Computer Engineering Associates, Inc., 350 North Halstead St., Pasadena 8, Calif. Computer components. Ic RMSa Dale Products, Inc., P. O. Box 136, Columbus, Nebraska Potentiometers, resistors. Ic RA~a Darby Radio Corp., 19 S. 21st St., Phila. 3, Pa. Magnetic tape recorders. Ic RMSa Data Processing Associates Ltd., Ottawa, Canada -- has become part of Electro Data Div., Burroughs Corp., which see. Data Processing Counselors, 130 East 59th St., New York 22, N.Y. (affiliate of Canning, Sisson & Associates) / PLaza 9-1693 Design of business systems, application of computers, training of personnel. Ss Se Dc l{CPa DATA PROCESSING DIGEST, 1140 S. Robertson Blvd., Los Angeles 35, Calif. / - / *C 57 Monthly digest service in field of data processing for business and industry. Ss Se DAlc HSCa DATAA"TIC CORPORATION, 151 Needham St., Newton Highlands 61, Mass. / DEcatur 2-6960 / *C 57 Large-scale, general purpose electronic dHta processing systems. Computing services (using digital computers) to analyze and process problems in general business accounting, operations r~search, applied mathematics, and engineering. Ms(250) Se(1955) Dc Rb5CPa T~IE DATICS CORPOtiATION, 6000 Camp Bowie Blvd., P. O. Box 9128, Ft. Worth, Texas / PErshing 8-6505 / *C 57 Consultants, computing services, research & development, data processing and data -18 - reduction services. Ss(25) Se(1956) DAle RCPSa The Daven Company, 530 W. Mt. Pleasant Ave., Rte. 10, Livingston, N.J~ / Livingston 6-4300 / *C 57 Precision resistors, rotary Switches and attcnuators. Ms(490) Me(1929) Ic RMSa Daystrom Electric Corp., ,753 Main St., Poughkeepsie, N.Y. Magnetic tape recorders. Ic RMSa Davies Laboratories, Inc., a division of Minneapolis-Honeywell Regulator Co., Beltsville, Md. / Appleton 7-1133 / *C Automatic data-reduction and conversion equipment. Magnetic tape data recorders. Magnetic recording and reproducing heads. Ms(llO) Se(1946) Ac RMSCa Daystrom Instrument Co., Archbald, Pa. / Jermyn 1100 / *C Digital and analog computers. Magnetic core and magnetic drum storage systems. Servomechanisms. Ls(lOOO) Se(1950) DAISc RMSCa Daystrom Pacific Corp., 11150 La Grange Ave., West Los Angeles 25, Calif. Potentiometers. Ic RMSa DAYSTROM SYSTEMS, DIVISION OF DAYSTROM, INC., 5640 La Jolla Blvd., La Jolla, Califnoria / GLencourt 40421 / *C 57 Complete systems for data handling, data logging, process control, special purpose digital computers, industrial control, and airborne systems. Ss(40) Se(1956) DSc RCa The de Florez Co., 116 East 30 St., New York 16, N.Y. / Murray Hill 6-5730 Register controls, servomechanisms, control systems, mechanical design. Research and development. Synthetic training devices. Ss(25) Se(1948) DAClc RCPa DeJur-Amsco Corp., 45-01 Northern Blvd., Long Island City, N.Y. Potentiometers, linear and non-linear; precision connectors (continental connectors). Ic RMSa Delco Radio Division, General Motors Corp., 700 East Firmin St., Kokomo, Ind. Transistors. Ic RMSa Deltime, Inc., 608 Fayette Ave., Mamaroneck, N.Y. / Mamaroneck 9-5800 / *C 57 Magnetostrictive delay lines and registers. Ms(75) Se(1953) Ic RMSa Dennison Manufacturing Co., Framingham, Mass. ! Tr 3-3511 / *C 57 Development, production and sale of "Print Punch" marking machine for automatic data processing. Ls(2700) Le(1844) Ic RMSa Denominator Co., Inc., 261 Broadway, New York 7, N.Y. Computers. RMSa . Development Electronics Corp., 4213 S. Broadway, Los Angeles 37, Calif. Delay lines. Ic HMSa Devol Research Co., Brookside Dr., Greenwich, Conn. Digital computers, punch card machines. Dlc RMSa Dialight Corp., 60 Stewart Ave., Brooklyn 37, N.Y. Ic RMSa Resistors. Organizations Dian Laboratories, Inc., 611 Broadway, New York 12, N.Y. / ALgonquin 4-6555 / *C 57 Computing and consulting services. Analog computing center. Design of simulators, trainers and special-purpose computers. Ss Se(1955) Ac RCPa Dictaphone Corp •• 375 Howard Ave •• Bridgeport, Conn. Magnetic tape recorders. Ic RMSa JOHN DIEBOLD AND ASSOCIATES, INC., 40 Wall St., New York, N.Y. / Whitehall 3-9115 I *C 57 Consulting management engineers, sp~cializ ing in automation and computers. Ss Se DAICc RlrK;Pa Diehl Mfg. Co., 1157 Finderne Ave •• Somerville. N. J. Resolvers. Ic HMSa Digital Control Systems, Inc. -- see Litton Industries Digitronics Corp., Albertson Ave., Albertson, L.I., N.Y. / Pioneer 7-5090 Digital computing and data processing systems; components. (formerly Elecom Division of Underwood) Ms (75) ~O 957) Dc HMSCa Doelcam Corp., a division of Minneapolis-Honeywell ~egu~ator Co •• 1400 Soldiers Field Rd •• Boston 35, Mass. / ALgonquin 4-5200 / *C Rate, free and integrating gyroscopes. D-C amplifiers and null indicators, synchros and servo motors. Ls(700) Me SIc HMSa DONNER SCIENTIFIC CO., 888 Galindo St •• Concord, Calif. / Mullberry 2-6161 / *C 57 Design and manufacture of complete analog computers, function multipliers, function generators, information delay generators, computing components, accessories, servomechanical transducers, electronic test equipment and control instrumentation. Design services in analog and digital computing instrumentation and applications. Ms(90) Se(1953) DASCc dMSCa Dukane Corp, St. Charles, Chicago, Ill. Magnetic tape recorders. Ic RMSa Dulrow Development Co., 235 Penn St., Burlington, N.J. Ic HMSa Magnetic tape recorders. E. I. DuPont de Nemours & Co. Inc., Polychemicals Dept., l{m. 1741, DuPont Bldg., Wilmington 98, Del. Magnetic tape recorders. Ic RMSa DX Radio Products Co., 2300 W. Armitage Ave. , Chicago 47, Ill. Delay lines, magnetic cores. Ic RMSa Dynamic Electronics, Inc., 73-39 Woodhaven Blvd., Glendale, Queens, N.Y. Delay lines. Ic RMSa !: Eagle Signal Corp., 202 20th St., Moline, Ill. / Moline 2-5571 / *C Timers and counters for automatic control of machines and processes. Ls(5l0) Le (1920) Cc MSa Eastern Air Devices Inc., 375 Central Ave., Dove~ N. H. Computers. RMSa Eastern Industries, Inc. -- SEE Automatic Signal Division - 19 - Eastern Precision Resistor Corp., 675 Barbey St., Brooklyn 7. N.Y. Registors. Ic RMSa EBASCO SERVICES INCOHPORATED, 2 dector St., New York 6, N.Y. / Digby 4-4400 / and elsewhere / *C 57 Management advisory services. Applications of data processing equipment in business; etc. Ls(1600) Le(1905) Dlc CPa Eckert-Mauchly Division -- part of Remington Rand Univac Division, Philadelphia, which see. Eclipse-Pioneer Division -- SEE Bendix Aviation Corporation Edgar, ,Wesley B., 206 Palmetto State Life Bldg., 1310 Lady St., Columbia 1, S.C. / Columbia 3-7563 / *C Consulting service on application of automated procedures to small business operations. 55(4) Me(1930) Ic Ca Edin Co., Inc., 207 Main St., Worcester 8, Mass. / PL 7-8394 Direct writing oscillograph recorders; high gain D.C. amplifiers; frequency spectrum analyzer. Alc RMSa Thomas A. Edison, Inc., Instrument Division, 22 Lakeside Ave., West Orange, N.J. / Orange 3-6800 / *C Automatic control components, time delay relays. Thermal devices. Ms(360 in division; 4000 in company) Me0940 divisio'n; 1888 company) Ic RMSa Edo Corp., College ~t. 56, N.Y. Delay lines. Ic RMSa Educational ~esearch Corp., 10 Craigie St., Cambridge 38, Mass. Digital computers; punch card machines. Ic RMSa Edwards Engineering Co., 21 Yennicock Ave., Port Washington, N.Y. Magnetic tape recorders. Ic RMSa Electra Mfg. Co., 4051 Broadway, Kansas City, Mo. Resistors. Ic RMSa ELECTRALAB, INC., Industrial Center, Needham Hgts., Mass. / NEedham 3-5000 / *C 57 Printed circuits; printed assemblies; printed circuit boards with plated-through holes -- for computers and other applications. Ms(80) Se(952) Ic HMSa Electrical and Physical Ins~rument Corp., 42-19 27th St., Long Island City, N.Y. / Stillwell 4-6389 / *C Flip-flop and other counters in decade and binary; digitizers (high speed); automatic control machinery. Ss Se OCc RMCa ELECTRODATA DIVISION OF BURROUGHS COHP. (formerly Electro Data Corp., affiliate of Consolidated Electrodynamic Corp.), 460 Sierra Madre Villa, Pasadena, Calif. / RYan 1-0471 / *C 57 Datatron electronic data processing machines and digital computer components; EIOI desksize electronic digital compute~; Cardatron alpha-numeric card input-output system; Datafile magnetic tape units; punched card conversion equipment. Digital computing service. Organization now includes Data Processing Associates, Ltd., Ottawa, Can. Ls(1680) Se(1950 this division; 1886 company) Dc HMSCPa Electro Instruments, Inc., 3794 Rosecrans St., San Diego 10, Calif. / Cypress 8-6144 / *C CO.puters and Auto.ation Digital voltmeters; digital ohm.eters, ana~ log-to-digital converters~ card converters, frequency counters, X-Y Recorders, go no-go systems, automation systems, digital testers, and other digital instruments. Ms(80) Se (1954) Ic RlSa Electro-Machine Corp., Box 565, Umatilla, Florida 'Magnetic drums; punch card machines. Ic RMSa Electro-Measurements, Inc., 7524 S. W. Macadam, Portland 1, Oregon: / Cherry 6-3331 / ·C 57 Computer test. procedures and instruments, computer readout devices. Computer compon~ ents. Ms (60') SeO 947) Ic RISCa Electro-Mechanical Research, Inc., 64 Main St., P. O. Box N, Ridgefield, Conn. Analog-to-digital converters, data processing. Ic RlSa Electro-Mec Laboratory, Inc., 47-51 33rd St., Long Island City I, N.Y. / Stillwell 6-3402 / ·C Analog-to-digital convertersi low torque potentiometersi etc. Ms(175) Se(195O) Ic RMSa Electrometric, Inc., 106 Olson St., Woodstock, Ill. Delay lines. Ic RlSa Electro-Miniatures Corp., 1060 Elm Ave., Ridgefield, N.J. Analog-to-digital converters. Ic RMSa The Electro Motive Mfg. Co. Inc., Willimantic, Conn. " Capacitors. Ic RMSa ELECTRONIC ASSOCIATES, INC., Long Branch, N.J. / CApital 9-1100 / and elsewhere /"·C 57 General purpose precision analog computers, special purpose analog computers, analog . computer components, digital-to-analog converter, digital plotting system (Dataplotter). Automatic control of all machine tools. Computation centers at Princeton, Los Angele~ Ls(900) Se(1945) DACc RISCa ELECTRONIC -ASSOCIATES INC. COMPUTATION CENTERS at Los\Angeles, Princeton -- SEE IUectronic Associates Inc. Electronic Computer Company, 6191 Ridge Ave., Philadelphia 28, Pa. Analog-to-digital converter for.data reduction systems and general voltage measurement applications. Ic RMSa Electronic Computer Div. of Underwood Corp., 3510 36th Ave., Long Island City 6, N.Y. / Exeter 2-3400 / ·C Construction: two types of electronic digital computers (Elecom 120-A, 125); an electronic sorter-collator; and a~ electronic accounting machine, Elecom 50. Delay lines, decade delay lines, pulse transformers, magnetic recording heads, magnetic drums, D.C. plug-in amplifiers.· Ms(200) Se(1949) Dc RlSa Electronic Computer Programming Institute, 475 Fifth Ave., New York 17, N.Y. / LlXington 2-4991 / ·C 57 Educational programs, teaching; courses designed to train personnel in electronic computer programming techniques. Dc CPa Electronic Control Systems, Inc., 2136 Westwood Blvd., Los Angeles 25, Calif. / Granite 8-4266 and Bradshaw 2-0845 / ·C Special purpose data-handling systems for - 20- military and industrial use; automatic continuity tester, statistical analyser, mac~ tool control systems. Ms(85) Se(1953) DACc RMSa ~ ELECTRONIC ENGINEERING CO., 1601 East Chestnut St~ Santa Ana, Calif. / Kimberly 7-5501 / ·C 57 Design, development, and fabrication of specialized electronic equipment. Data handling systems, ,engineering design and fabrication. Timing systems. Computer input and output equipment. Ms(270) Se (1947) DAICc RMCSa Electronic Noise.Generator Co., P. O. Box 45344, Airport Station, Los Angeles 45, Calif. / FRontier 5-4685 / ·C 56 Low frequency Gaussian noise generator (distributed solely by Electronic ASSOCiates, Inc., N. J.) Ic RMa Electronics Corp. of America, 77 Broadway, Cambridge 42, Mass. / TRowbridge 6-9100 / ·C Electronic and photoelectronic controls, "Photoswitches", etc. Automatic control and data processing machinery. See next entry Business Machines Div. Ls(ISOO) Me(1937) DACc RlSa Electronics Corp. of America, Business Machines Div., 10 Potter St., Cambridge 42, Mass. / TRowbridge ~~8190 / ·C Automatic inventory machines and point of sale recorders. "Magnefiles". Data processing and digital computing machinery. Digital computers for business use. Analogdigital converters. Automatic control instrumentation and systems. SEE also preceding entry for Electronics Corp. of America. Ls(ISOO company) Me(1954, this division: 1937, company) DACc RMSa Electronic Research Associates Inc., 67 East Centre St., Nutley 10, N.J. Transistors. Ic RMSa Electronic Teaching Labs, 1818 MSt., N.W., Washington 6, D.C. Magnetic tape recorders. Ic RNSa Electron Products Inc., 430 N. Halstead Ave., Pasadena, Calif. Cap~citors. Ic RlSa Electro-Pulse, Inc •• 11861 Teale St., Culver Ci ty, Calif. Computer components. Ic RMSa Electro-Sonic Lab, 35-54 36 St., Long Island City, N.Y. Magnetic tape recorders. Ic RMSa Elgin National Watch Co., Elgin, Ill. Neomite relay; electronic switching device. Ls Le Ic RMSa ELLIOTT ADDRESSING MACHINE CO., 143 Albany St., Cambridge 39, Mass. / TRowbridge 6-2020 / ·C 57 Addressing stencils, with selection con. trolled by punched holes in cardboard margin. Ls(IOOO) Se(I900) Ic RMSa Elliott Bros. (London) Ltd., Century-Works, Lewisham, London, S.E. 13, England and Computing Machine Division, Elstree Way, Borehamwood, Herts., England / Tideway ~323, Elstree 2040 / ·C Servomechanisms; Elliott 402, 403 electronic digi tal computer·s. GPAC (General purpose analog computer). Computing services; components, instrumentation and control for process industries. Ls(3500) Le(I800) DASCc RMSCPa Organizations EI-Rad Mfg. Co., 2800 W. Collom Ave., Chicago 18, ' Ill. Delay lines. Ie RNSa Emerson Radio & Phonograph Corp., 14th & Coles St., Jersey City 2, N.J. Anal~g¥computers. Ac RMSa EECO Produciion Co., 506 E. First St., Santa Ana, Calif. Electronic components for computers and other equipment. Squaring circuits. Subsidiary of Electronic Engineering Co. of Calif. Ic REa Engineered Electronics Company (subsidiary of Electronic Engineeri'ng Co.), 506 E. First St., Santa Ana, Calif. I Kimberley 3-9384 / ·C 57 Plug-in computer circuitry (vacuum tube and transistorized types), diode logic. decade counters, hermetically sealed stepping switches. chopper-stabilized DC amplifiers, and compatible accessory items. Ms(IOO) SeU954} DACc Ma· Engineering Research Associates -- SEE Remington Rand Univac ~ngineers Northwest, 2835 Nicollet Ave., Minneapolis 8, Minn. / Re-5541 I *C Test-scoring machines and equipment. Ss~20) Se(1945) DAc RCMa The English Electric Co~pany Ltd., Queens House, Kingsway .. LondoD, WC2.' England / Holborn 6966 I *C 57 Deuce, universal digital computeri also special purpose electronic digital computers for use with kinetic heat simulators. Ls Dc HlSa EPSCO, INC., 588 Commonwealth Ave., Boston 15. Mass. I COpley 7-8100 / *C 57 Automatic data processing equipments and systems for c~mputer and/or control applications. ADDAVERTER systems for combining large scale anal~g and digital computer installations. DATRAC voltage-to-digital conversion equipment. Electronic multiplexers as well as magnetic shift registers, delay lines~ pulse transformers and other components for computers~ automatic control, etc. Ms(325) Se(954) DAICMc RMSCa Erie Electronics Distributor Div., Erie Resistor Corp., Erie, Pa. Computers; assemblies; resistors. Ic RMSa ESC CORP., 534 Bergen Blvd., Palisades Park, N.J. I Windsor 7-0400 / ·C 57 Computer components: delay lines, pulse forming networks, pulse ~ransformers, filters. MeU2S) "Se(953) Ic RMSa Essex Elect~onics, 550 Springfield Ave •• Berkeley Heights. N.J. . Delay lines. Ic RMSa Essex Wire Corp., R.B.M. Division, Logansport, Ind. Ie' RMSa Relays. E-Z So~t Systems, Ltd., 45 Second St •• San Francisco 5, Calif. / Garfield 1-8005 / *C Edge-punched cards for filing and sorting data. Special cards for correlation of facts. Control systems for a number of electronic computers. Ms(260) Me (193S) Ic RMSa - 21 Fabrics Addizionatrice Italiana S.S., Viale Umbria 36, lilan, Italy Desk calculators to add, subtract, multiply, divide, print. Dc RNSa Facit, Inc., 404 4th Ave., New York 36, N.Y. (su~~idiary). Stockholm, Sweden (headquarters), and elsewhere / ·C Touch calculators; adding machines; Odhner adding machine with multiplying features; typewriters. etc. (In 1390 A.D., copper Ls(4000) Le{139O A.D.) Dc mining). RMSa Fairbanks Associates, 248 Greenwich Ave., Greenwich, Conn. I Greenwich 8-8155 / *C Consultants in application and installation of electronic systems in clerical methods and procedures; evaluation of proposed savings; operations research. Ss(7) Se (1952) DIc RCPa Fairchild Controls Corp., Components Div., 225 Park Ave •• Hicksville, L.I., N.Y. / Wells 8-5600 I and 6111 E. Washington Blvd., Los Angeles, Calif.. / RAymond 3-5191 / ·C 57 Precision potentiometers, linear, non-linear, single turn, multi-turn, wire wound and noble metal film; trimmer potentiometers, pressure transducers. Subsidiary of Fair~hild Camera and Instrument Corp. Le(1920) Ls(2500, company; 500. this division) Ic RMSa Fairchild Engine & Airplane Corp., 118 East 16th St., Costa Mesa. Calif. Analog-to-digital converters; potentiometers. Ic RMSa FairChild Recording Equipment Co., 154 St. & Powells Cove Blvd., Whitestone 57, N.Y. Magnetic tape recorders. Ic RMSa Fansteel Metallurgical Corp., 2200 Sheridan Road, North Chicago, Ill. Capacitors; rectifiers. Ic RMSa Farnsworth Electronics Co., 3702 E. Pontiac St., Fort Wayne 1, Ind. Ic RMSa Delay lines. Farrand Controls, Inc •• 4401 Bronx Blvd., New York 70, N.Y. I Fairbanks 4-2210 "Inductosyn" automatic control equipment. Subsidiary of Farrand Optical Co., which see. Farrand Optical Co., Bronx Blvd. and 238 St., New Y~rk 70, N.Y. / Fairbanks 4-2200 / ·C Gunfire control apparatus, rangefinders, optical and electronic sighting equipment, automatic trackers, infrared search and scanning systems, analog-digital converters, analog computers, etc. Ls(800) Le(19l8) DASCc RMSCa Federal Telephone and Radio Co.t.Division of International Tel. and"Tel., 100 Kingsland Rd., Clifton, N.J. / Nutley 2-3600 / *C Vacuum tubes, selenium rectifiers, germanium diodes, contact protectors, coaxial cables, magnetic amplifiers; radio and telephone systems, microwave systems, and associated components. Ls(6500) Me(194l) ISCc RMSPa Federal Television Corp., 19-10 23 Terrace, Long Island City 5, N.Y. Delay lines. Ic RMSa Federated Semi-Conductor Co., 66 Day St., New York, N.Y. Semi-conductors. Ic RNSa Felt and Tarrant Mfg. Co., Comptometer Div., 1735 No. Paulina St., Chicago 22, Ill. / Brunswick ~5000 / ·C Adding-calculating machines, key-driven, eiectric and non-electric. Comptometer. Electronic dic'tation-transcJ'iption machines. Ls(I7oo) Le(I886) Dc RMSa Fenton Co., 15 Moore St., New York 4, N.Y. Magnetic tape record~s. Ic RMSa Fenwal Incorporated, 362 Pleasant St., Ashland, Mass. Thermistor devices. Ic RMSa FERRANTI ELECTRIC, INC. ,\ 30 Rockefeller Plaza" New York 20, N.Y. / Circle 7-0911 / agent for F~rraAti Electric Ltd., Moston, England, and Mount Dennis, Toronto, Canada / ·C 57 General purpose electronic digital computers (Pegasus, Mercury). Special purpose data processing systems. High speed tape readers. Magnetic d~ums. D~gital storage delay lines. J,.s'(I2,ooO including associated companies) Le(IS96) DAIc RMSa FERRANTI LIMITED, Computer Centre, 21 Portland Pl., London WI, England / Langham 9211 Computer and information-handling centre. Ls(6oo) Se(1953) DAc RPCa FERRANTI ELECllUC LTD., Mount Dennis, Toronto, Ont., Canada Digital computers; magnetic drums. DIc Creek, N.Y. Delay lines. Ic RMSa FORD INSTRUMENT CO., DIY. OF SPERRY RAND CORPORATION. 31-10 Thomson Ave., Long Island City 1, N.Y. / Stillwell 4-9000 / ·C 57 Gunfire control apparatus. Analog and digital computers; components; magnetic amplifiers; servos; differential and integrator elements; missile guidance systems. Automatic control systems involving computers. Instruments for shipborne and airborne armament and navigational control. Computers, ,systems, drives, and precision components for industry and government. Ls(3000) Le(1915) DASCc RMPCSa THE FOXBORO COMPANY, Foxboro, Mass. / Foxboro 312 / ·C 57 Industrial instrumentation and analog computers for measuring and controlling process variables. Ls(2000) Le(I90S) ACc RlSa Franklin Electronics, Inc., E. 4 St., Bridgeport, Pa. / Broadway 2-4800 / ·C 57 Analog-to-digital converters. Other products. Ms(5O) Se(1951) Ic RNSa THE FRANKLIN INSTITUTE, LABORATORIES FOR RESEARCH AND DEVELOPMENT, 20th St. and Benjamin Franklin Parkway, Philadelphia 3, Pa. / LOcust 4-3600 / ·C 57 Digital computing machinery, analog computing machinery, servomechanisms; automatic control machinery, automatIc materials handling machinery. Computing service: digital (Univac); analog (AC network analyzer); and Electronic Associates general purpose analog computer. Fire control equipment. Special purpose analog computers, large and small scale. Digital computer components. Prototype construction. Ms(325) Se(1946) DASCMc RPCa Freed Transformer Co., Ltd., 1727 Weirfield St., Ridgewood, Brooklyn 27, N.Y. Miniature components; transistors, transformers. Ic RMSa FRIDEN CALCULATING MACHINE CO., INC., San Leandro, Calif. / SWeetwood 8-0700 (and Commercial Controls Corp., One Leighton Ave., Rochester 2, N.Y. / Culver 5800) / ·C 57 Desk calculating and adding machines. "Flexowriter" automatic writing machines. Complete line of equipment for reading, punching, verifying, converting, and transmitting common language tape or edge-punched cards. Complete line of integrated data , processing equipment. Ls(3000) Me(1934) DIc RMSa Fugle-Miller Labs, Inc., Dept. R-6, 301 Central Ave., Clark, N.J. Ic RMSa Delay lines. REa Ferricore, Inc., 303 Railroad Place, Orange, N.J. Ic KlSa Magnetic cores. Ferroxcube Corporation of America, East Bridge St., Saugerties, N.Y. (a joint subsidiary of Sprague Electric Co. and Philips Industries) / Saugerties 1000 / ·C Ferrite core materi~ls, including pot cores, cup cores, recording heads, and microminiature- toroids with square hysteresis loop., Ms(150) Se(1950) Ic RNSa Film Capacitors Inc., 3400 Park Ave., New York 56, N.Y. , CapaCitors, computers. Ac RMSa Financial Publishing Co., Mathematical Tables Division, 82 Brookline Ave., Boston 15, Mass. / ·C Computing service: digital; card programaed calculators, punch card. Ms(loo) ?e Dc RCPa FISCHER AND'POBTER COMPANY, 330 Warminster Rd., Hatboro, Pa. / Osborne 5-6000 / ·C 57 Automatic instrumentation, inclu4ing: measurement of a variable at the point of process; transmission of data, central collection, and display; data reduction systems using a mechanical digital converter (DigiCoder), tabulated digital data output, etc. Automatic multiple readout systems, converters, computers. Ls(1400) Me(1937) DACc RMSa Fischer Smith Inc., 164 State St. W., Englewood, N.J. Ic RMSa Magnetic tape recorders. The de Florez Co. -- SEE under letter D Fonda-Bensing Corp., P. O. Box 244, Narberth, Pa. Magnetic tape recorders. Ic RNSa Forbes & Wagner, Inc., 345 Central Ave., Silver Gamewell Co., Newton Upper Falls 64, Mass. Potentiometers. Ic RMSa H. S. GELLMAN & CO. LTD., 110 Bloor St. West, Toronto, Ont., Canada / Walnut 3-4484 / ·C 57 Consultants on automatic data processing systems; application of systems and equipment to business data pr~cessing, system analysis, and design; training of clients' - 22- Organizat ions personnel; programming and computing service for business, scientific and engineering calculations. Ss(6) Se(1955) Dc RCPa General Automatics, Inc., 1178 San Carlos Ave., San Carlos, Calif. Analog and digital computers. DAc RMSa GENERAL CERAMICS CORPORATION, Keasbey, N.J. (near Perth Amboy) / Valley 6-5100 / ·C 57 Magnetic cores and ferrites for computer components; toroidal ferrite cores as memory devices for computers; magnetic memory planes; technical ceramics, insulators, etc. Ls(5OO) Le(1906) Ic RMSa General Controls, 801 Allen Ave., Glendale 1, Calif. / Victoria 9-2181 / *C Automatic controls (pressure, temperature, level, flow). Ls(2000) Me(1930) Cc RNSa General~Cybernetics Corp., affiliate of The Angle Computer Co., Inc., 1751 No. Coronado St., Los Angeles 26, Calif. / Normandy 3-1300 / *C Linear motion transducer reporting 1/10,000 of an inch position change; high-speed converter of punched cards to tape; industrial automation, electronic gages for automation processes, etc. Successor of General Cy~er netics Associates. Ss(18) Se(1953) DAICc RCMSa General Devices, Inc., P. O. Box 253, Princeton, N.J. Analog-digital converters. Ic RMSc General Electric Co., Schenectady, N.Y. Computing service: analog; network analyzer AC and DC, differential analyzer; for anyon~ AIc RCPa General Electric Co., Aircraft Products Dept., 600 Main St., Johnson City, N.Y. Digital computers. Dc RMSa General Electric Co., Electronic Components Dept., 1811 Lemoyne Ave., Syracuse, N.Y. Delay lines, magnetic cores. Ic RMSa General Electric Co., Industry Control Dept., Roanoke, Va. Resistors. Ic RNSa General Electric Co., Semiconductor Products, Electronics Park, Syracuse, N.Y. Rectifiers, transistors. Ic RMSa General Electric Co., Tube Department, One River Road, Schenectady, N.Y., and elsewhere / . Schenectady 4-2211 / ·C Electronic tubes, including many specifically for computer purposes. Twin-triode, heptode, and thyratron types for counters, amplifiers, coincidence-gating, frequencydividers, and core-drivers. Also, high reliability types for airborne computers. Ls(15,OOO) Le(1878) Ic RMSPCa General Electric Co. Ltd. of England, c/o Imtra Corp., 58 Charles St., Cambridge 41, Mass. Magnetic drums. Ic RMSa General Findings and Supply Co., Industrial Div., Leach & Garner Bldg., Attleboro, Mass. Potentiometers. Ic RMSa General Industries Co., Olive and Taylor Sts., Elyria, Ohio Magnetic tape recorders. Ic RMSa General Instrument Corp., (Autom Mfg.), 65 Gouverneu~ St., Newark 4, N.J. Capacitors; rectifiers. Ic RMSa General Instrument Corp., F. W. Sickles of Canada Ltd., 151 Weber St., S. Waterloo, Ont., Canada - 23 - Delay lines. Ic RMSa GENERAL KINETICS, INC., 555 23rd St. South, Arlington 2, Va. / Otis 4-7555 / ·C 57 Mathematical studies; numerical analysis; programming services for major general purpose computers; data reduction services; systems studies and evaluation including operations research; construction, modification, and repair of peripheral equipment Ss(12) Se(1954) and special components. DCc RCPa General Precision Laboratory, 63 Bedford Road, Pleasantville, N.Y. / ROgers 9-5000 /··C Rapid electronic analysis of punch card data, etc. Ls(12oo) Se(1945) DIc RMSa General Research Co.,' 603 Jackson St., Falls Church, Va. / Je 4-7622 Consulting services: applications of data processing equipment; operation of computer installations. Ss Se Dc RCPa GENERAL TRANSISTOR CORP., 91-27 l38th Place, Jamaica 35, N.Y. / OL 7-9700 / ·C Computers; transistors. Ms(250) Se(1954) Ic RMSa Genisco, Inc., 2233 Federal Ave., W. Los Angeles, Calif. / Arizona 8-1276, Bradshaw 2-9749 / ·C Computer components of electro-mechanical type, transducers, analog-to-digital converters, accelerometers, pressure transducers, x-y digital output film reader, components for automation and automatic control; etc. Ms(lOO) Se(1947) ICc RMSa Georgia Institute of Technology, Rich Electronic Center, Engineering Experiment Station, Atlanta 13, Ga. / Trinity 4-6331 / ·C 57 Computing service: ERA 1101 and IBM 650 computers. Ss(16) Se(1955) Dlc RCPa THE GEOTECHNICAL CORPORATION, 3712 Haggar Drive, Dallas 9, Texas / Fleetwood 7-1721 / ·C 57 Special designs of digital and analog computers. Automatic chart readers. Other products. Ms(120) Me(1936) DAlc RMSa The Gerber Scientific Instrument Co., 162 State St., Hartford, Conn. / Chapel 6-8539 Graphical-numerical computers. Relays, motors, plastisuls, metals. Ss Se(1948) Ic RMSa Germanium Products Corp., 26 Cornelison Ave., Jersey City, N.J. Silicon and germanium transistors for computer and other uses. Ic RMSa Giannini Datex Div., 1307 So. Myrtle Ave., Monrovia. Calif. Data processing, scanners. Ic RMSa G. M. Giannini & Co., Inc., 918 E. Green St., Pasadena, Calif. Computers, potentiometers. Dc RMSa Gilmore Industries, 5713 Euclid Ave., Cleveland 3, Ohio Digital computers. Dc RMSa Goldak Co., 1544 W. Glenoaks Blvd., Glendale, Calif. Magnetic tape recorders. Ic RMSa Good-All Electric Mfg. Co., Ogallala, Neb. Capacitors. Ic RMSa Goodyear Aircraft Corp., Akron 15, Ohio / Republic 3-6361 / *C Goodyear electronic differential analyzers. (GEDA line of analog computing equipment). Ls Me Ac RMSa ce.,uters aad Automation .~otham Audio Development Corp •• 2 West 46th St., , New York 36, N. Y. Magnetic tape recorders. Ie RMSa GPS Instrument Co •• Inc.~ 811 Boylston St., Boston 16, Mass. Analog computers. Ac RMSa Gramation Instrument Co., 59 Main St., White Plains, N.Y. Magnetic cores. Ic RMSa Gray Mfg Co., 16 Arbor St.~ Hartford. Conn. Ic RMSa Magnetic tape recorders. Guardian Electric Manufacturing Company, 1621 W. Walnut St., Chicago 12, Ill. / Chesapeake 3-1100 / ·C Components for computers, relays, solenoids, switches, stepping relays, hermetically sealed controls, complete control assemblies. Ls(850) Me (1932) ICc RMSa Gudeman Co. of Calif., 9200 Exposition Blvd., Los Angeles 34, Calif. / Texas 0-7317 Delay lines, pulse transformers, filter networks. Ic RMSa Gulton Mfg. Corp., 212 Durham Ave., Metuchen, N.~. Delay lines; magnetic tape recorders. Ic RMSa !! Hall-Scott, Inc., 2950 On,tario St., Burbank, Calif. / VI 9-2341 / ·C 57 Analog computers and components. Ms(250) Le Ac RMSa HALLER, RAYMOND, AND BROWN, INC., State College, Pa. / Ad 7-7611 / *C 57 Electronic digital computer for solution of up to 1200 simultaneous equations, using . magnetic drum and tape. Research and development on computer components. analog computers, electronic and electromechanical systems. Engineering analysis, operations research"electronic development. Ms(200) Se(1947) DAc RMSa Haloid Co., 220 Haloid St., Rochester, N.Y. Sensitized paper. Ic RMSa Hamann Calculating Machine Co., 2118 Land Title Bldg., Philadelphia 10, Paw Adding. subtracting, multiplying desk calculators. Dc MSa HAMMAHLUND MF~. CO., INC., 460 West 34 St., New York 1, N. Y.. ' /' Longacre 5-1300 / *C 57 Systems of remote control employing audio tones fQfl" remote .supervisory control and telemet.e,ring over telephone lines or other commun~cation links. Ls(600) Le(1910) ICc RMSa Donald C. Harder Co., 3710 Midway Drive City. San Diego 10, Calif. Delay l~nes. Ic RMSa Hardwick Hindl1e., Inc., 40 Mermon St., Newark 5, N.J. Resistors. Ic RMSa Harnett Electr~A Corp •• Riverhead, Long Island, N.Y. Delay lines. Ic RMSa Harvard University, Harvard Computation Laboratory, Cambridge 38, Mass. / ·C 57 Builder of H~~vard Mark I, II, III, IV calculators for Navy, Air Force, and own use. Computing serv,ice: digital; Harvard Mark I and IV, and Univac I machines. Ms -24- Me(1941) Dc RCPMa Cecil Hastings. Jr., 136 Kuuala St., Lanitai. Hawaii I Kai 250214 I *C 57 Ss(2) Approximations for digital computers. Se(1954) Dc R~a Hathaway Instrument Co. (subsidiary of Hamilton Watch Co.), 1315 So. Clarkson St., Denver 10, Colo. / Spr&lce 1-2696 I *C Transd~cers~ aualog and digital recorders. oscillographs, circuit analysis. etc. Ms(80l Me(1939) Ie RCMSa Heath Co., Benton Harbor. Mich. CGmputers; resistors. Assemblable electronic analog computer kit. DAle RMSa Helipot Corporation~.916 Meridian Ave •• So. Pasadena, Calif. I PY'1-2164 I ·C Preeision potentiometers. single-aud-multitura, linear and non-linear; turns-counting dials. Ls(600) Me(1943) Ie HMSa Hewlett-Packard Co •• 4276A Page Mill Rd., Palo Al to, Calif. Digi tal cOIIp,uters. Dc RlSa Hillyer Instrument Co., 54 Lafayette St•• New Iork 13, N.Y. / Digby 9-4485 I *C Simulators, servomechanisms, sensing, computing, and actuating sys,tems.. Automatic machine controls. Ms(lOO) Se(I94S) DAISCc RMSa Hoffman Electronics Corp., 930 Pitner Ave•• Evanston. Ill .. Rect.ifiers. Ie RMSa Hogan Laboratories, 155 Perry St., New York 14, N.Y. / Chelsea 2-7855 / *C Digital high-speed printers. Facsimile and graphic recording. Ms(60) Me(l929) De RMSCa N. V. HOlLANJl)E SIGNAALAPPARATEN, Hefl1Jelo U», Netherlands I *C 57 Radar fire control systems and their co~ puters for different types oi armament. Directors, computers, trackers and radar systems for finding targets, then automatically sighting the gun,s, under their control.. Ls{ 1800) Le( 1922) DAICe RMSa HOOVER ELECTRONICS CO., 3640 Woodland Ave•• Baltimore 15, Md. / MO 4-2350 / *C Analog to digital converter. Digital com--puters. Sequential test sets and systems for computers, telemetering, and information processing. Ms(60) Se{I952) Dc KlSa Hopkins Engineering Co., 12900 Foothill Blvd., SaB Fernando, Calif. Capacitors. DAc RMSa Houston Technical Labs.~ 3701 Buffalo Speedway, P. O. Box 6027, Houston, Texas Magnetic tape recorders. Ic RMSa Huck Co., 37 Wall St., New York 5" N.Y •. I Digby 4-4750 / ·C 56 Card sensing & punching units for computer input-output. Ms(125) Me(1945) Dc RMSCa Hugbes Products, International Airport Station~ Los Angeles 45, Calif. Rectifiers, diodes. Ic RMSa HUGHES RESEARCH AND DEVELOPMENT LABORATORIES, HUGHES AIRCRAFT CO., Culver City, Calif. I Texas 0-7lII / *C 57 Automatic data-bandliag systems for commercial and military applications. Industrial control systems. Small, automatic electronic digital and analog computers for airborne use. Fire-control equipment. Aircraft con- Organizations trol. Guided missiles. Ls(15,000 companYi 5,000 Res. and Devt. LabS.i 400 computers) Me(937) DACc RMSa Humphrey, Inc., 2805 Canon St., San Diego 6, Calif. Potentiometers. Ic RMSa Hupp Electronics Co., 265 E. Pomfret St., Carlisle,.Pa. Delay lines. Ic RMSa Hycon Eastern Inc., 75 Cambridge Parkway, Cambridge 42, Mass. Analog data reduction systems, magnetic tape handlers, etc. Ic RMSa ! Imperial College, Mathematics Dept., Computer Section, Huxley Bldg., Exhibition Road, So. Kensington, London, England Automatic digital relay computer constructed and in operationi constructing a second computer with neon tube storage. Ss Le(1922) Dc RMa Imtra Corp., 58 Charles St., Cambridge 41, Mass. / UN 4-4350 / Magnetic storage drums, etc. Ic Ba Indiana Steel Prod'ucts Co., Valparaiso, Ind. Magnetic cores. Ic RMSa Induction Motors Corp., 570 Main St., Westbury, L.L, N.Y. Magnetic' tape recorders. Ic RMSa Industrial Control Co., 805 Albin Ave., Lindenhurst, L.I., N.Y. / Midland 3-7548 Servo amplifiers, servo multipliers, dynamic analyzing tester, etc. Ic RMSa Industrial Electronics of Canada, Ltd., 83 Torbarrie Rd., Toronto 15, Canada Analog computers. Ac RMSa INDUSTRIAL NUCLEONICS CORP., 1205 Chesapeake Ave., Columbus, Ohio / HU 8-0671 / *C 57 "AccuRay" Process Control Systems, automated systems for the rubber, paper, steel, plastics, and tobacco industries. Choppers, operational amplifiers, analog to digital converters, etc. Ms(300) Se(1950) CIc RMSCa Industrial Research Co., 133 Bradford St., Needham 92, Mass. Analog computers, data processing. Ac RMSCa Industrial Research Lab., Div. of Aeronca, Hilltop & Frederick Rd., Baltimore, Md. Analog-to-digital converters. Ic RMSa Industrial Test Equipment Co., 55 East 11 St., New York 3, N.Y. Analog computers. Ac RMSa Institut Blaise Pascal, Laboratoire du Cal cuI Mecanique, 25, Avenue de la Division Le Clerc, Chatillon-sous-Bagneux (Seine), France / *C 56 Constructing a digital calculator. Ss(9) Me(1939) Dc RPa Ins~itute for Advanced Study, Electronic Computer Project, Princeton, N.J. / PR 1-4400 / *C High speed general purpose (scientific) digital computers for own use. Ss(35) Se(1946) Dc RPa Instron Engineering Corp., 440 Hancock St., Quincy 71, Mass. Analog Computers. Ac RMSa - 25 - Instrument Components, Inc., 14-34 1124 St., College Point 56, N.Y. Analog computers. Ac RMSa Instrument Development Labs., Inc., 67 Mechanic St., Attleboro, Mass. Analog-to-digital converters, analog (color difference) computers. AIc RMSa Insulated Circuits, Inc., 620 Passaic Ave., West Caldwell, N.J. Delay lines. Ic RMSa Intelligent Machines Research Corp., 1101 Lee Highway, Arl~ngton, Va. / Jackson 5-6400 / *C Devices for reading characters on paper, etc. Pattern interpretation equipment. Sensing mechanisms. Digital computer elements. Ss (28) Se(951) Dc RCMSa " INTERNATIONAL BUSINESS MACHINES CORP., 590 Madison Ave., New York 22, N.Y. ,-Plaza 3-1900 / and elsewhere / *C Punch card machines. IBM 650, Magnetic Drum Calculator. IBM Electronic Data Processing Machinesi IBM 704 and 705 (magnetic tape, magnetic drum, magnetic core storage, etc.). Card Programmed Calculator. Electronic calculating punch IBM 604 and 607. Data processing equipment. Automatic Source Recording Equipment. Computing service: digital; IBM 701, 702, 605, 604, etc. Punch card machines. Ls(42,OOO) Le(19ll) DCc RMSCa International Electronics Corp., 81 Spring St., New York 12, N.Y. Magnetic cores. Ic RMSa International Rectifier Corp., 152, £ast Grand Ave., El Segundo, Calif. / Oregon 8-6281 / *C Manufacturer of germanium diodes, selenium diodes, selenium photocells, selenium rectifiers. Ms(390) Se(1947) Ic RMSa INTERNATIONAL RESIS~NCE CO., 401 N. Broad St., Philadelphia 8, Pa. / WAlnut 2-2166 / *C 57 Resistors, selenium rectifiers, diodes, related electronic components for computer Ls(2300) Me(1926) Ic and other uses. RMSa International T~lemeter Corp., 2000 Stoner Ave., Los Angeles 25, Calif. / GRanite 8-7751 / *C 57 Systems and devices for clerical and control applications. Automatic document-handling machinery. High-density photographic information storage. Community TV system equipment; pay-as-you-see TV. SEE also Teleme.ter MagnetiCS and Electronics Corp. Ms ( 100) Se ( 1950) DCc RfdS~a, ,, International Telephone and Telegraph Corp., 67 Broad St.,' Ne'W York 4-," N. Y. / Bowling Green 9-3800 / *c"! ' Equipment for automatic control of repetitive processes, clerical or industrial work, such as inventories. Fully automatic pneumatic tube system, by dialing. Ls(96,000) Le DASCMc RMSCPa Isolantite Mfg. Corp., Warren Ave., Stirling, N.J. Magnetic cores. Ic RMSa ITE Circuit Breaker Co., 601 East Erie Ave., Philadelphia 34, Pa. Analog computers. Ac RMSa Computers and Automation Bill Jack Scientific Instrument Co., 143 Cedros Ave., Solana Beach, Calif. / Skyline 5-1551 / *C Airborne analog computers for "Recon" systems, aerial cameras; recording cameras; etc. Ms(450) Se(1949) Dlc RMSa Byron Jackson Division -- SEE Borg-Warner Corporation Jacobs Instrument Co., 4718 Bethesda Ave., Bethesda 14, Md. / *C High-speed small, compact digital computers (Jaincomp A, B, Bl, B2, C). Pulse transformers. delay lines, magnetic storage systems. Pulse generators, test equipment. Input and output devices. Complete instrument systems. Ss(30?) Se(1948) DASCc RMSa Jarvis Electronics Corp., 1140 Cherry St., Winnetka, Ill. / HI 6-1255 / *C 57 Systems and techniques. Ss(8) Se(1947) Ic RMSCa Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena 3, Calif. / *C Analog, digital, and data-handling systems. Research and development in jet propulsion and missile guidance. Ls(I,200; about 50 on computers) Me(1942) DAc RCPa JFD Electronics Corp., 1462 62nd St., Brooklyn 19, N.Y. Capacitors. Ic RMSa KCS DATA CONTROL, LTD., Suite 862, Bay-Grosvenor Bldg., 880 Bay St., Toronto, Ont., Canada / *C 57 Consulting and computing services and programming in the digital computer field. Ss(30) Se(1954) Dc RCPa Kaiser Metal Products, Inc., Briston, Pa. / Stillwell 8-3361 / *C Digital delay generators for accurate measurement and generation of time intervals, etc. Automatic electronic controls for industrial applications. Ls(3,500) Le (1920) Ic RMSa Kaye Development Co., Connecticut Ave., S. Norwalk, Conn. \ Data processing; punch card machines. Ic RMSa Kearfott Co., Inc., Clifton, N.J. / Gregory 2-1000 / ·C Analog-digital converter; digital-analog converter; servo motors, synchros, resolvers, integrating tachometer generators; analog and digital computers. Ls(3000) Le(1916) DAISc RMSa George F. Kelk, Ltd., 130 Willowdale Ave., Willowdale, Ont., Canada / BA 5-3391 / ·C Digital plotting equipment. Specialized analog computers. Ss (12) SeO 953) DAc RMSCa Kelvin Electric Co., 5907 Novel Ave., Van Nuys, Calif. Resistors. Ic RMSa Kepco Laboratories, Inc., 131-38 Sanford Ave., Flushing 55, N.Y. Relays; transistors. Ic RMSa Ketay Manufacturing Co. -- SEE Norden-Ketay Corp. Kelt Corpa~ation, 4526 Chickering Ave., Cincinnati 35, Ohio Analog computers, oata processing. DAlc RMSa Key Electric Corp., 287 Post Ave., Westbury, N.Y. Photoelectric tape readers, magnetic tape handlers, magnetic tape recorders. Ic RMSa Walter Kidde & Co., 675 Main St., Belleville 9, N. J. Analog computers. Ac RMSa A. KIMBALL COMPANY, 444 4th Ave., New York 16, N.Y. / MUrray Hill 5-4202 / *C 57 Machine for p.rinting and punching garment tags. Input mechanisms. (This company now owned by United Shoe Machinery Corp.) Ms (350) Le(1876) Ic RMSCPa Kleinschmidt, Inc., Deerfield, Ill. / Deerfield 1000 / *C Page printing read-out devices, tape reading and tape punching equipment. Ls(650) Se (1946) Ic RMSCa The James Knight Co., 101 E. Church St., Sandwich, Ill. Transistors. Ic RMSa THE KYBERNETES CORP., Division of Self-Winding Clock Co., 9 East 40 St., New York 16, N.Y. / MUrray Hill 3-6030 / *C 57 Automatic industrial data processing, digital printout and digital indicator systems. Temperature (thermocouple) indicator monitors with annunciation. Ms(200) Le(1885, parent company) ICc RMSa 1 LABORATORY FOR ELECTRONICS, 75 Pitts St., Boston 14, Mass. / RIchmond 2-3200 / ·C General purpose digital computers (TIM and DIANA Data Processing Systems for Business); large-capacity magnetic drum storage. Special analog and digital military computers. Tape-controlled machines and processes. Radar systems, navigational devices, special and commercial test equipment, etc. Ls(800) Se(1946) DAc RMSa LANSDALE TUBE CO., DIV. OF PHILCO CORP., Lansdale, Pa. / ULysses 5-4681 / *C 57 Transistors, diodes, tubes for computers. Ls(3000) Me(1942) Ic RMSCa Lanston Industries, Inc., Barrett Adding Machine Div., 24th & Locust Sts., Phila. 3, Pa. / Locust 7-4614 / *C 57 Adding, subtracting, and printing desk calculators. Ms(350) Le(1892) Dc RMSa Leeds & Northrup, 4970 Stenton Ave., Phila. 44, Pa. / Michigan 4-4900 / ·C 57 Null-balance electronic instruments for indicating, recording, controlling and telemetering. Automatic control systems. Analog computers for closed-loop control of power comp~ny networks (one such computer controls power flow over a fourstate area). Ls(3200) Le(1899) ACc RMSa Lewyt Mfg. Corp., Long Island City 1, N.Y. / EX 2-5050 / *C Data processing equipment. CDT (Coordinate Data Transmitter System) which screens, - 26 - Organizations interprets, and codes radar information for transmission over telephone lines. Dc RMSa Librascope, Inc., 808 Western Ave., Glendale I, Calif. / Chapman 5-2677 / *C 57 Mechanical, electrical and electronic computers. Computing and controlling equipment for industrial and military applications. Airborne digital computers. LGP-30: lowprice, large capacity, general purpose digital computer. All phases of data-handling. Computer components, analog and digital. Ls(1500; approximately 350 on digital computers) Me(1937) DASc RMSa Librascope, Inc., Burbank Div., 133 E. Santa Anita Ave., Burbank, Calif. / Th 5-1785 or Vi '9-1351 / *C Magnetic "decision" elements; general purpose computer; reading-recording magnetic heads; converters; magnetic tape demagnetizers, etc. Formerly Minnesota Electronics Corp. Ms (55) Se (I946) Dlc RMSa LINK AVIATION, INC., Binghamton, N.Y. / Binghamton 3-6311 / *C 57 Flight simulators, analog computers, servomechanisms, gear boxes, test equipment. Ls(2500) Me(1929) ASc RMSa Lambda-Pacific Engrg, Inc., 14725 Arminta St., Van Nuys, Calif. / - / *C Magnetic tape recorders. Ic RMSa Landis & Gyr, Inc., 45 West 45th St., New York 36, N.Y. /.- / *C Computers. Ac RMSa Lapp Insulator Co. Inc., Radio Specialties Div., 130 Sumner St., LeRoy, N.Y. Magnetic cores, resistors. Ic RMSa Lavoie Labs, Inc., Matawan-Freehold Rd., Morganville, N.J. / - / *C Digital computers, punch card machines. Dlc RMSa Leemath, Inc., Oak Drive, Syosset, Long Island, N.Y. Analog-to-digital converters. Analog and digital computers. DAlc RMSa Leonard Electric Products Co., Inc., 67-34 St., Brooklyn 32, N.Y. Delay lines, magnetic cores. Ic RMSa Arthur D. Little, Inc., 30 Memorial Drive, Cambridge 42, Mass. / UNiversity 4-9370 / *C Analog digital converter, "Automatic Digital Recorder of 'Analog Data" (ADRAD). Conversion and input devices. Consultation concerning electronic equipment requirements for handling data; mathematical analysis and programming for digital computers. Ls(800) Le(1886) Ic RCPa LITTLEFUSE, INC., 1865 Miner St., Des Plaines, Ill. / Vanderbilt 4-1188 / *C 57 Fuses and fuse holders for computer and other uses. Ms(450) Me(1927) Ic RMSa Litton Industries, Inc., 336 N. Foothill Dr., Beverly Hills, Calif., and elsewhere / CRestview 4-7411 / *C Radar systems with monopulse techniques; countermeasures, inertial navigation, automatic flight control, telemetering devices, communications equipment, instrumentation and test equipment, servomechanisms. New digital differential analyzer. Portable, electronic scientific computers (digital differential analyzer) and such accessories - 27 - as graph plotters, followers, tape input and output devices, digital-analog converters, and magnetic drums and heads. Advanced system design and development. Ls(1300) Se (1953) DAICc RMSCa Litton Industries of Maryland, Inc., 4910 Calvert Rd., College Park, Md. / - / *C Digital computers, potentiometers. Dlc RMSa Log Abax S.A., 146, Champs Elysees, Paris 8, France / Elysees 61-24 / *C Collaborating with Institut Blaise Pascal on computing devices. 198-register automatic accounting machine. Connection with punch card or computing machines. Ms(700) Se(1949) Dc RMSa . Loyola Laboratories, Box 45074, Airport Station, Los Angeles 45, Calif. / ORegon 8-1686 / *C Computers, computing services. Ic RMSa LOGISTICS RESEARCH, INC. -- name changed to Alwac Corp., which see. M & 5 Sound System Co., 373 Elm St., New Haven, Conn. Magnetic tape recorders. Ic HMSa W. S. Macdonald & Co. -- SEE Comptron, Inc. Machine Statistics Co., 27 Thames St., New York 6, N.Y. / Cortlandt 7-3165 / *C Computing service: IBM 604, punch card machines, IBM 650 expected. Ss(35) Se (I951) Dc CPa Mack Electronics, a Division of Mack Trucks, Inc., 40 Leon St., Boston 15, Mass. / HIghlands 5-5640 Special purpose analog & digital computers, input-output equipment, voltage & data converters, machine tool control systems, magnetic core shift registers & logical elements, transistor circuit packages, special instrumentation equipment. Se(1956) DAlc RMSa MacLeod and Hanopol Inc., 10 Roland St., Charlestown 29, Mass. Delay lines, analog-to-digital converters. Ic RMSa Mag-Electric Products, Inc., 12822 S. Yukon Ave., Hawthorne, Calif. Delay lines. Ic RMSa The Magnavox Co., 2131 Bueter Rd., Fort Wayne 4, Indiana Analog-to-digital converters; analog and digital computers; data processing equipment; magnetic drums. Ls DAlc ttMSa Magnecord, Inc., 1101 Kilbourn Ave., Chicago 24, Ill. Magnetic tape recorders. Ic HMSa Magne-Pulse Corp., 140 Nassau St., New York 38, N.Y. Delay lines; magnetic tape recorders; magnetic drums. Ic HMSa Magnetic Core Corp., 199 Main St., Ossining, N.Y. Magnetic cores. Ic RMSa Magnetic Metals Co., Hayes Ave. at 21st St., Camden, N.J. . . Magnetic cores. Ic HMSa MAGNETIC RESEARCH CORP., 3160 W. El Segundo Blvd., Hawthorne, Calif. / Osborne 5-1171 / *C 57 Computers and Automation Power supplies, magnetic servo amplifiers for automatic control. Ms(llO) Se(1952) IcC RMSa Magnetics, Inc., Box 230, Butler, Pa. / Butler 7-1745 / *C Tape wound cores of ultra-thin high-permeability ma'ter'ials, for computers, etc. Ms (275) Se(1949)r Ic RMSa Magnetics Research, Co'., 255 Grove St., Whi te Plains, N.Y. (for~erly at Chappaqua, N.Y.) / Whi te Plains 9-9488 1 /,·C 57 . Magnetic compo~en~~,!o! analog and digital systems and con,tput~rs;", magnetic shift registers, toroidal windings, computer subassemblies & sub-systems/magnetically operated high speed scaler~;~magnetic amplifiers. Ss(25) Se(l952) ,Ic RMSCa P. R. Mallory & Co., Inc., 3029'E. Washington St., Indianapolis 6, Ind. . L; , , ,Transistors, resistors, capacit,ors, and rectifiers for computer and o~her uses. Ic RMSa MARCHANT CALCULATORS, INC., 1475 Powell St., Oakland 8, Calif. Automatic electric calculators (desk type). Marchant Binary-Octal calculator. Ls (2500) Le(19l0) Dc RMSa MARCHANT RESEARCH, INC., subsidiary of Marchant Calculators, Inc., 1475 Powell St., Oakland 8, Calif. ' , Electronic digital computers and data processing systems. -S's(5~) ~e(l950) Dc RMSCa -., Markite Corp., 155 Waverly Place, New York 14, N.Y. / Oregon 5-1384 / *C 57 Precision potentiometers, for computer and other uses. Ms(85) Se(1949) Ic RMSa Maryland Lava Co., Box 205, Belair, Md. Magnetic cores. Ic RMSa MASSACHUSETTS INSTITUTE OF TECHNOLOGY, Digital Computer Laboratory, 211 Mass. Ave., Cambridge 39, Mass. / UNiversity 4-6900 / *C 57 "Whirlwind" electronic digital computer. Ms(300+) Me(1945) DAc RCPa Massachusetts Institute of Technolp~y, Office of Statistical Services, Cambridge 39, Mass. / UNiversity 4-6900 Computing service: digital; IBM 604, card programmed calculator, punch card machines. Ss Se Dlc RCPa Mathematisch Centrum, 2e Boerhaavesstraat 49, Amsterdam, Netherlands / *C Relay computer; electronic computers; for own use. Ms(60) Se(1946) Dc RCPa Maurey Instrument Corp., 7924 So. Exchange Ave., Chicago 17, Ill. Potentiometers. Ic RMSa The W. L. Maxson Corp., 475 Tenth Ave., New York, N.Y. / Longacre 5-1900 / and elsewhere Servomechanisms, analog computers, and digital computers for fire control, navigation, etc. Automatic control machinery. Ls(3000) Me(1935) DASCc RMSa McBee Co., Athens, Ohio Ic RMSa Punch card machines. McGraw-Edison Co., T. A. Edison Instrument Div., 51 Lakeside Ave., West Orange, N.J. Ic RMSa Magnetic heads. MELLON INSTITUTE OF INDUSTRIAL RESEARCH, Multiple Fellowship on Computer Components, University I - 28 - of Pittsburgh, Pittsburgh 13, Pa. / Ma 1-1100 X378 / *C 57 High temperature modular printed circuitry. (Note: By "modular printed circuitry" tne organization says it means the fabrication, on a single substrate, of film components, such as resistors, capaCitors, inductors, and conductors connecting in lines. This is in contrast to an assembly of such components, and in contrast to printed conductor wiring.) Ss(5) Se(1950) Dc RCa Melpar, Inc., 3000 Arlington Blvd., Falls Church, Va. Delay lines; magnetic cores. Ic RMSa Meridian Inc., 880 Main St., Stamford, Conn. / Delay lines Ic RMSa Metro Electronics Corp., 172 Washington St., New York 7, N. Y. Rectifiers Ic RMSa ~mTRON CORP., 8 Coryell St., Lambertville, N. J. / EXport 7-1570 / *C 57 Punched card sensing device used in analog and digital computers, other computer components. Ss(6) Se(1956) DAc RMSa Micamold Electronics Mfg. Corp., 1087 Flushing Ave., Brooklyn 37, N. Y. Delay lines Ic RMSa Mico Instrument Company, 80 Trowbridge St., Cambridge 38, Mass. / KIrkland 7-8660 Toroid transformers, toroid inductors; ferrite core units for computers, etc. 8s(20 Me(1934) Ic RMSa Microtone Co., 5740 Wayzota Blvd., Minneapolis 16, Minn. Magnetic tape recorders. Ic RMSa Microtran Co., 145 E. Mineola Ave., Valley Stream, L. I., N. Y. Transistors. Ic RMSa Microwave Assoc., Inc., N. W. Industrial Park, Burlington, Mass. Ic RMSa Magnetic cores. Microwave Engineering Labs., Inc., 11155 El Monte, Los Altos, Calif. Magnetic cores. Ic RMSa Mid-Century Instrumatic Corp., 611 Broadway, New York 12, N. Y. / Spring 7-4016 / *C Analog computers; six-channel recorders; electronic function generators; diode function generators; electronic multipliers; electronic recorders. Ms(50) Se(1950) AIc RMSCa Miles Reproducer Co., 812 Broadway, New York 3, N. Y. MagnetiC tape recorders; recording equipment. Ic RMSa James Millen Mfg. Co., Inc., 150 Exchange St., Malden 48, Mass. Delay lines. Ic RMSa William Miller Instruments, Inc., 325 No. Halstead Ave., Pasadena 8, Calif. Milac analog compu~dr. Electronic instruments for precision testing and measurement. Ac RMSa H. Jefferson Mills, Jr., 2725 29 St. N.W." Washington 8, D. C. / NOrth 7-0343 / COC ' Management counsel in systems analysis and equipment evaluation for integrated and electronic data processing applications in business and government. Ss Se(1954) Dlc RCPa Organizations Minneapolis-Honeywell Regulator Co. -- SEE also Davies Laboratories, Inc., Datamatic Corp.,. and Doelcam Minneapolis-Honeywell Regulator Co., Industrial Division, 4580 Wayne Ave., Philadelphia 44, Pa./ Michigan 4-8300 / *C . ~utomatic controllers. Brown Instruments. :- ServOt~.c.ompo.nents used ~n computers. Record. ling';, .andi i(nl,:ljea.t.i ng. i:ns.truments and control .··.eqtJ:ipment, etc. '1Amplif,ier~,i...converters, balanci!lg' motors ,~' potentiometet:~, '-recording pa. pers. I:.s(3200)· .Le(859) . ACe ;~R.MSa :.Mi~nesota,Electronics Corp. --.SEE Librascop~, Inc., Burbank Div. Minnesota Mining and Manufacturing Co., 900 Faquier St., St. Paul 6, Minn. Magnetic cores, magnetic tape. Ic RMSa Mohawk Business Machines Corp.,Halsey St., Brooklyn 33, N. Y. Magnetic tape recorders. Ic RMSa Moloney Electric Co., 5390 Bircher Blvd., St. Louis 20, Mo. Magnetic cores. Ic RMSa Monrobot Corp. -- SEE Monroe Calculating Machine Co., Electronics Div. MONROE CALCULATING MACHINE CO., Electronics Div., Morris Plains, N. J. / JEfferson,.8-7200 / *C 57 Magnetic drums; read-record beads; selection systems; keyboards; memory systems; special purpose computers and data handling systems. 1 Formerly Monrobot Corp. / Ms(150) Se(1949) Ic RMSa Monroe Calculating Machine Company, Orange, N. J.I Orange 3-6600 / and elsewhere 1 *C Desk calculating machinery for adding, calculating, and bookkeeping. Ls(4550) Le(19ll) Dc RMSa MOORE SCHOOL OF ELECTRICAL ENGINEERING, Univ. of Pennsylvania, 200 South 33 St., Phila. 4, Pa. / *C 57 Computing service: analog, digital; differential analyzer, card programmed calculator, punch card machines. Ms(80) Le(1923) DAc HCPa Morand Electronics, 2538 S. Highland, Los Angeles 16, Calif. Magnetic cores. Ic RMSa F. L. MOSELEY CO., 409 North Fair Oaks, Pasadena, Calif. / Ryan 1-0208./ *C 57 Two-coordinate X-Y recorder, point plotter, digital voltmeters, curve follower, etc. Ms (60 Se(1950) Ic RMSa Motorola Inc., 5005 E. McDowell Rd., Phoenix, Ariz. Transistors. Ic RMSa MOUNTAIN SYSTEMS, INC. has become Airborne Instrument Laboratories, Modac Division, which see. Mullard Overseas, Ltd., Century House, Shaftesbury Ave., London W. C. 2, England Ic RMSa Magnetic cores. National Aircraft Corp., Marvelco Div., 3411 Fulare Ave., Burbank, Calif. Delay lines; magnetic cores. Ic RMSa NATIONAL ANALYSTS, INC., 1015 Chestnut St., Philadelphia 7, Pa. / Market 7-8109 / *C 57 Data processing and computing services, including consulting and programming; operations research; marketing research. Facilities - 29 - include full line of punch card equipment, large and medium sized electronic data processing machines (IBM 705 and 650). Ms(60) Se Dc RCPa National Bureau of Standards, Applied Mathematics Division, Washington 25, D. C. 1 Emerson 2-40401 Computing service; Seac, Dyseac, and punch card machines; for government and government contractors only. Ms(50) Se(1947) Dlc RCPa National Bureau of Standards, Data Processing Systems Division, Washington 25, D. C. 1 Emerson 2-4040 1 *C Digital and analog computers, data processing and control systems, input-output devices, storage elements, transistQrs, diodes, delay lines, etc. (for government only). Designed, assembled, and maintain Seac; designed and assembled Dyseac; designed several special purpose machines. Ms(80) Se(1946) DAc RMBGa 'THE NATIONAL CASH REGISTER CO., South Main and K Sts., Dayton 9, Ohio / EMerson 1411 / and Hawthorne, Calif. 1 *C57 Digital computers, data processing machines, input-output devices, NCR 304 electronic data processing system and other computers. Ls(15,500 at Dayton) Le(1884) Dc RCMSa The National Cash Register Co., Electronics Div., 3348 West EISegundo Blvd., Hawthorne, Calif. Computer components, input-output devices; computing service; digital computers and other computers; decimal digital differential analyzers; transistors. DAlc RMSPa National Co., Inc., 61 Sherman St., Malden, Mass.! Malden 2-7954 Communications receivers; some computing equipment. Ls(700) ?e Ic RMSa National Fabricated Products, Inc., 2650 W. Belden Ave., Chicago 47, Ill. Diodes, silicon type. Ic RMSa National Moldite Co., 1410 Chestnut Ave., Hillside, N. J. Magnetic cores. Ic RMSa National Physical Laboratory, Control Mechanisms and Electronics Division, Teddington, Middlesex, England 1 *C Digital computers, electronic simulators, data recording. Designer and builder of the Pilot Model of ACE (Automatic Compu~ing Engine). Collaborates with English Electric Co. Ls(lOOO; this division,40) Le(1900) DIc RCPMa National Physical Laboratory, Mathematics Div., Teddingto~, .Middlesex, England / Molesey 1380 1 *C57 Computing service using DEUCE and differential analyzer. Analog, digital, punch card. Unrestricted as to clients. Ms(60) Me(1945) DAc RCPa National Semiconductor Products, 930 Pitner Ave., 'Evanston, Ill. Silicon junction diodes. Ic RMSa National Union Electric Corp., 350 Scotland Rd., Orange, N. J. 1 Orange 2-6600 1 *C Electron tubes, semi-conductor diodes, and transistors for computers, etc. Ms(150) Me(1929) Ic RMSa Natvar Corp., 201 Randolph Ave., Woodbridge, N. J. Capacitors. Ic HMSa Computers an~ Automation Navigation Computer Corp., 294 McKeon St., Philadelphia 45, Pa. Data processing. Dlc New London Instrument Co. Inc., 82 Union St., New London, Conn. Digital computers. Dc RMSa The Newton Co., 55 Elm St., Manchester, Conn. 1 Mitchell 3-5104 1 *C Data processing equipment. Analog to digital converters; simulators; automatic typewriters. Ms(50) Se(947) Dlc HMSa Non-Linear Systems, Inc., Del Mar Airport, Box 728, Del Mar, Calif. 1 SKyline 5-1134 1 *C 57 Digital computing and measuring machines and components. Ms(150) Se(1952) Dc RMSa Norden Laboratories, 121 Westmorland Ave., White Plains, N. Y. -- subsidiary of Norden Ketay Corp. w.bich see Norden-Ketay Corporation, Commerce Hd., Stamford, Conn. 1 *C Automatic control systems, analog computers, fire control systems, bomb sights, navigational systems, potentiometers, analog-digital converters, synchros, servo motors, resolvers, servo amplifiers, resolver amplifiers, airborne instruments. Ls(2400) Se(1955) DASCc RMSa NOHTH AMEHICAN AVIATION, INC., COMPUTER DIVISION -- name changed to Autonetics, a Div. of No. American Aviation, Inc., which see North American Research & Control Instruments Div. -- SEE Philips Co., Inc., 750 S. Fulton Ave., Mt. Vernon, N. Y. North Electric Manufacturing Co., 526 S. Market St., Galion, Ohio Data processing; relays, multi-contact type, telephone type; rotary stepping switches. Ic RMSa Northern Electric Co., Ltd., 1600 Notre Dame St. W., Montreal, Quebec, Canada Magnetic cores. Ic HMSa NOHTHROP AIRCRAFT, INC., Dept. 3330, Hawthorne, Calif. 1 OH 8-9111, Ext. 424 1 *C 57 Digital and analog computers, conversion equipment, data reading and reduction components and system~, reconnaissance data handling; develops, maintains, operates own computing and data handling equipment. Ms(95 this project) Se(1950 this project) DAc RMCPa Norton Associates, Inc., P. O. Box 96, Garden City, N. Y. Magnetic Drums. Ic RMSa Notifier Manufacturing Co., 239 South 11th St., Lincoln 8, Nebraska 1 Lincoln 5-2946 1 *C Automatic control machinery for fire alarms. Automatic control circuits, computer circuits, switching circuits. Automatic coding and decoding. Memory and pulse storing devices, transistor devices. Ss(30) Se(1949) Clc RMSCa NUCLEAH DEVELOPMENT CORPORATION OF AMERICA, 5 New St., White Plains, N. Y. 1 White Plains 8-58001 *C 57 Selection, design, and building of special purpose data-handling systems. Programming. Operate own "Datatron" providing computing services. Also work with machine builders on automatic control machinery and automatic materials handling machinery. Ms(350) Se (1948) DCMc HMSCa Nuclear Science and Engineering Corp. -- Subsidiary of Norden-Ketay Corporation, which see. - 3C1 - Numerical Analysis Research -- SEE University of California at Los Angeles - 0 - Oakton Engineering Corp., 725 Oakton St., Evanston 14, Ill. Magnetic tape recorders. Ic RMSa Oerlikon Tool & Arms Corp. of America, P. O. Box 3049, Asheville, N. C. Analog-to-digital converters; digital com: puters; data processing. Dlc RMSa Ohmite Manufacturing Co., 3692 Howard St., Skokie, Ill. 1 ORchard 5-2600 Capacitors, computer types; miniature wirewound resistors; etc. Ic RMSa OLIVETTI CORP. OF AMERICA, 580 Fifth Ave., New York 36, N. Y. 1 JUdson 2-4600 1 and Ing. C. Olivetti & Co., S.P.A., Ivrea, Italy 1 *C 57 Single and duplex register adding machines. Single and dual register printing calculators. Ls(18,000) Le(1908) Dc RMSCa Olympic Radio & Television Inc., 34-01 38th Ave., Long Island City 1, L. I., N. Y. . MagnetiC tape recorders. Ic RMSa ORRADIO INDUSTRIES, Shamrock Circle, Opelika, Alabama 1 Sherwood 5-4621 1 *C 57 Instrumentation tape; computers; telemetering recorders. Ms(lOO) Se(1949) Ic RMSa Ortho Filter Corp., 196 Albion Ave., Paterson 2, N. J. 1 Mulberry 4-5858 1 *C Pluggable units for computers, cathode ray amplifiers, power supplies, wiring of complete racks, toroids, etc. Ms(43) Se(1946) Ic R'MSa John Oster Mfg. Co., Avionic Div., Racine, Wis. Fast response magnetic resolvers, etc. Ac RMSa Otis Elevator Co., Electronic Div., 35 Ryerson St., Brooklyn 5, N. Y. Analog computers; data processing; punch card machines. Alc RMSa Lee H. Owens Co., 2331 W. Washington Blvd., Los Angeles 18, Calif. Magnetic tape recorders. Ic RMSa - p - PACIFIC SEMICONDUCTORS, INC., 10451 West Jefferson Blvd., Culver City, Calif. 1 Vermont 9-2341 or Texas 0-4881 1 * C 57 Germanium and silicon diodes. Ms(400) Se(1954) Ic RMSa PACKARD-BELL ELECTRONICS CORP., 12333 W. Olympic Blvd., Los Angeles 64, Calif. 1 BRadshaw 2-2171 and GRanite 7-6721 1 *C 57 High speed (real time) incremental computers. Analog-digital, digital-analog converters. Hybrid digital-analog computing devices. Nonlinear function generators for analog computers. Combinatorial techniques for digital computers. Ls(2000) Me(1927) DAc RMa PANELLIT, INC., 7401 N. Hamlin Ave., Skokie, Illinois 1 ORchard 5-2500 1 *C 57 Information systems; coordinated control centers; alarm systems; scanning and monitoring systems. Ls(550) Me(1945) ISCMc RMSCPa PCA Electronics, Inc., 2180 Colorado Ave., Santa Monica, Calif. Delay lines. Pennsylvania State University, X-ray and Crystal Structure Lab., Dept. of Physics, University Organizations Park. Pa. / Adams 8-8441 X2125 / .C X-RAC computer for.crystal electron density functions. S-FAC for structure factor calculations. Ms(55) Se(1946) DAc RPa Pentron Corp •• 777 S. Tripp Ave •• Chicago 24. Ill. Magnetic tape recorders. Ic RMSa The Perkin-Elmer Corp •• Engineering & Optical Division & Vernistat Div •• Main Ave •• Norwalk. Conn. Analog computers; potentiometers. Alc RMSa Permoflux Corp., 4900 W. Grand Ave., Chicago 39, Ill. Magnetic cores. Ic RMSa Phaostron Instrumeqt & Electronie Co., 151 Pasadena Ave., South Pasadena, Calif. Relays Phebco, Inc. -- SEE Hoover Electronics Co. GEORGE A. PHILBRICK RESEARCHES. l~ •• 230 Congress St., Boston 10, Mass. / HUbbard 2-3225 / *C 57 Philbrick electronic analog computing equipment and components. Computing service: analog; Philbrick equipment. Ms(60) Se(1946) Ac RMSa Philco Corp •• Government and Industrial Div •• Wissahikkon and Abbotsford Rd •• Phila. 44. Pa. / Tennessee 9-4000 Transac (transistor automatic digital computing system). Transac "match control". Transistors. Other products. Ls(whole company, 23.000) Le(1892) Dlc RMSa Philco Co~p •• Lansdale Tube Co. Div. -- SEE Lansdale Tube Co. Phillips Control Corp •• Joliet. Ill. / Joliet 33431 / *C Relays for computers, etc. Ms(350) Se(1946) Ic RMSa PHILIPS ELECTRONICS, INC., Instruments Div., 750 So. Fulton Ave., Mt. Vernon, N. Y. / Mount Vernon 4-4500 / *C 57 Analog computers. Ratemeters. Semi-automatic X-ray machine that determines percent of 24 different elements in a specimen. etc. X-ray process control instruments using element analysis for control information. Ms(250) Me(1942) Alc RMSCa Photon. Inc •• 58 Charles St •• Cambridge 38. Mass. / Trowbridge 6-1177 / ·C Machinery for composing type by photographs. Ms(IOO) Me(1940) Dlc RCMSa Pi-Square Engineering Co., Inc •• 230 Congress St •• Boston 10. Mass. / HUbbard 2-3225 / *C Analysis and solution of engineering problems. Computing services. Analog computing equipment available. Ss Se(1954) ASCc RCPa Polarad Elect. Corp •• Long Island City, N. Y. Resistors. Ic RMSa The Polymer Corp. of Pa., 2140 Fairmont Ave., Reading, Pa. Computer components; magnetic cores. Ic RMSa Polyphase Instrument Co., lOl Haverford Rd., Bryn Mawr, Pa. , Delay lines. Ic RMSa The Potter Company, 1950 Sheridan Rd., No. Chicago, Illinois Capacitors. Ic RMSa POTTER INSTRUMENT CO., INC., 115 Cutter Mill Rd., Great Neck-, N. Y. / Hunter 2-6430 / *C 57 Electronic counters. Magnetic and perforated paper tape handlers; digital printer. Shift registers. Magnetic core memory. Random - 31 - access memory. High-speed printer "magnityper": 8 to 30 lines of characters printed per second. Analog-to-digital converter, photo electric screens. Ms(I80) Me(1942) Dc RMSCa Potter and Brumfield Mfg. Co., Inc., Princeton, Indiana / Princeton 1596 / .C Electric relays and stepping switches for computers, etc. Ls(IOoo) Le(1932) Ic RMSa Powers-Samas Accounting Machines, Ltd., PowersSamas House, Holborn Bars, London E.C. 1. England. Punch card tabulating equipment using small, medium, and standard cards. Agency is Underwood Corp •• which see. Ls(60oo) Le(1916) Dlc RMSa Precision Capacitors, Inc., 150 W. Cypress Ave., Burbank, Calif. Capacitors. Ic RMSa Press Wireless Labs, Inc., 25 Prospect Place, West Newton 65, Mass. Magnetic tape recorders. Ic RMSa Presto Recording Corp., P. O. Box SOO, Paramus, N. J. Magnetic tape recorders. Ic RMSa Pulse Engineering, 2431 Spring St., Redwood City, Calif. Delay lines. Ic RMSa _ Pulse Techniques, Inc., 1411 Palisade Ave., West Englewood, N. J. Delay lines. Ic RMSa Purdue University, Statistical Laboratory, West Lafayette, Indiana / Lafayette 92-2542 / .C Computing service: digital; Datatron digital computer; punch card machines. Ss(15) Se(1951) Dlc RCPa Pye Corp. of America. 270 Park Ave., Room loolA, New York 17, N. Y. Magnetic tape recorders. Ic RMSa Pyramid Instrument Corp., 630 Merrick Rd., Lynbrook, N. Y. Capacitors; rectifiers. Ic RMSa Pyrofilm Resistor Co., 8 Whippany St., Morristown, N. J. Resistors. Ic RMSa Pyroferric Co., Inc., 621 East 216 St., New York 67, N. Y. Magnetic cores. Ic RMSa RADIATION, INC., p. O. Box 37, Melbourne, Fla. / Melbourne 800 / ·C 57 Data processing, data conversion, and data reduction equipment; 32 channel digital telemetering system, which includes data collection, processing, and translating equipment for computer. High speed output printer for electronic computers. Ms(750) Se(1950) Dlc RMSCa Radiation Counter Lab., Inc., 5121 West Grove St., Skokie, Ill. Digital computers. Ic RMSa Radiation Instrument Development Laboratory, 5737 South Halsted St., Chicago 21, Ill. Analog-to-digital converters. Ic RMSa Radio Condenser Co., Davis & Copewood Sts., Camden 3, N. J. Capacitors. Ic RMSa Computers and Automation Radio Cores, Inc., 9540 S. Tulley Ave., Oak Lawn, Ill. Magnetic cores. Ic RMSa Radio Corp. of America, Precision El~ctronic Instruments Div., Building 15-1, Camden, N. J. Magnetic tape recorders. Ic RMSa RADIO CORP. OF AMERICA, COMPONENTS DIV., 19th & ~ Federal Sts., Camden, N. J. / WOodlawn 3-8000 / ·C 57 Ferrite memory cores, custom built memory planes, apertured ferrite memory plates; relays. Ls Le Ic RMSCa RADIO CORP. OF AMERICA, ELECTRON TUBE DIVISION, 415 South 5th St., Harrison, N. J. / HUmboldt 5-3900 / *C Electronic ~ubes for computers. Ls Le Ic RMSa RADIO CORP. OF AMERICA, SEMI-CONDUCTOR DIV., Somerville, N. J. / RAndolph 5-4500 / ·C 57 Transistors, semiconductors, diodes. Ic RMSa Radio Development & Research Corp. (Germanium P~oducts, a subsidiary), 26 Cornelison Avenue, Jersey City, N. J. / Rector 2-2337 (New York City) / *C Transistors, diodes, rectifiers, for computers. Ms(lOO) Me(1938) Ic RMSCa Radio Industries Inc., 1307 Central Ave., Kansas City 2, Kan. / - / ·C Delay lines. Ic RMSa Radio Metals Corp., 3325 N. California Ave., Chicago 18, Ill. Capacitors. Ic RMSa nADIO RECEPTOR, INC. 240 Wythe Ave., Brooklyn 11, N. Y. / EVergreen 8-6000 / ·C 57 Germanium diodes for computer and other uses. Ls(750) Le(1922) Ic RMSa Ram Meter, Inc., 1100 Hilton Rd., Ferndale 20, Mich. Digital computers. Dc RMSa The Ramo-Wooldridge Corp., Computer Systems Division, 5740 Arbor Vitae, Los Angeles 45, Calif./ Oregon 8-0311 / ·C Airborne digital computer systems and data processing systems. Ls(lOOO) Se(1953) Dlc RMSCa The Rand Corporation, 1700 Main St., Santa Monica, Calif. / EXbrook 4-0251 / *C 57 Large digital computers for scientific and business uses; analog computers for scientific computations. (For government use only). Ls(lOOO) Se(1946) DAIc RPBa Rapid Electric Co., 2881 Middletown Rd., New York 61, N. Y. Rectifiers. Ic RMSa RaymOnd Rosen Engineering Products, Inc. -- name changed to Tele-Dynamics, Inc. which see RAYTHEON MANUFACTURING CO., Division: Receiving and Cathode Ray Tube Operations, 55 Chapel St., Newton 58, Mass. / BIgelow 4-7500 / *C 57 Semiconductor diodes, silicon rectifiers, transistors, and electron tubes for computers. Ls Le(1923) Ic RMSa Raytheon Manufacturing Co., 100 River St., Waltham, Mass. / TWinbrook 3-5860 / *C Radar, sonar, communications, fire control, microwave and telemetering equipment, power tubes, electro-hydrauiic servo controls, automatic machine-tool duplicators~ Computer work transferred to Datamatic Corporation, which see. Ls(20,000) Le(1925) DAc RMSa - 32 .. Raytheon Mfg. Co., Computer Dept. ~ow Datamatic Corp., which see . J. B. Rea Co., 1723 Cloverfield Blvd., Santa Monica, Calif. / Exbrook 3-7201 / *C Analog-to-digital converters, miniature motors and gyroscopes, automatic control systems, general and special purpose digital computers, automatic data handling systems, aerodynamic systems analysis, simulation, nonlinear servo systems. Magnetic drums, magnetic heads, etc. Computing service: analog, digital, simulation; Electronic Associates' analog computer, Rea-Converter, READ IX , general purpose digital computer. Ms(80) Se(1951) DASCc RMSCa RECORDING AND STATISTICAL CORPORATION, 100 Sixth Ave., New York 13, N. Y. / WOrth 6-2700 / and elsewhere. . Computing and data processing services using electronic digital computers and punched card equipment of latest types. Dlc RCPa Reeves Instrument Corp., 215 East 91 St., New York 28, N. Y. / Trafalgar 6-6000 Fire-control equipment. "REAC" electronic analog comput~rs;' servo mechanisms; 6 channel recorders; computers for simulation, automation and control~ Computing service: anaLs Me Ac. RMSa log; Reac. The Reflectone Corp., 639 W~ Main St., Stamford, Conn. / FIeldstone 8-4201 / *C 57 Analog computing equipment for simulating radar, sonar, navi'gation, etc. Ms(200) Me(1940) Alc RMSa REMINGTON RAND UNIVAC DIVISION OF SPERRY RAND CORPORATION, 315 4th Ave., New York 10, N. Y. / Spring 7-8000 / and elsewhere / *C 57 Digital computers (Univac System, Univac Scientific, Univac File-Computer, Univac 120 and Univac 60 Punched-Card Electronic Computers). Analog computers; special purpose computers. Converters: card to tape tape to card, punched paper tape to magnetic tape, and magnetic tape to punched paper tape. High speed printers, servomechanisms, magnetic drum storage systems, input and output devices. Punched-card tabulating equipment. Business and scientific computing servic~ Ls(8000) Le Dlc RCPa REMINGTON RAND UNIVAC DIVISION OF SPERRY RAND . CORPORATION, Univac Computing Center, 315 4th Ave., New York 10, N. ~. / Spring 7-8000 Computing service; digital; Univac, punched card equipment, etc. Ms Se(1954) Dc RCPa REMINGTON RAND UNIVAC DIVISION OF SPERRY RAND CORP., 452 Swann Ave., Alexandria, -Va. / KIng 9-6705 Applications of computers for research and development. Special systems for data processing, instrumentation, communications, etc. Dlc RCPa Remington Rand Univac Division of Sperry Rand Corporation, Engineering Research Associates. Division, 1902 W. Minnehaha Ave., St. Paul, Minn. / Nestor 9601 / *C . Development of digital computers, auto~tic data-handling and control systems, mechanisms, and weapons. Pulse circuits, magnetic cores, magnetic drums, transistors, printed wiring, miniaturization, and precise mechanisms used in the design of these systems~ Automatic digital computers ERA 1101,- 1102~ . Organizations 1103; Speed Tally; CAA Flight Plan Storage Systems; the Logistics Computers. Ls(1050) Se(1946) Dc RMCPa Remington Rand Univac Division of Sperry Rand Corporation (formerly Eckert-Mauchly Division). 2300 West Allegheny Ave., Philadelphia, Pa. / Baldwin 3-7300 / *C All purpose digital computers. Univac Systems. Ls(600) Se(1946) Dc RCMa Rensselaer Polytechnic Institute, Computer Laboratory, 110 8th St., Troy, N. Y. / Ashley 2-3000 X240 / *C ' Computing service: analog; Reac, precision magnetic tape recorders for analog computing applications. Ss(8) Se(1952) Ac RCPa Res~arch Inc •• 526 Sexton Bldg., Minneapolis 15, MInn. Anafog Computers. Ac RMSa RESISTANCE PRODUCTS COMPANY, 914 S. 13th St., Harrisburg. Pa. / CE 6-9006 / .c Resis~ors -- high voltage, high resistance, standard types, encapsulated, hermetically sealed, subminiature, etc., for computer and other uses. Ic RMSa RICHARDSON CAMERA COMPANY, INC., 171 W. Magnolia Blvd., Burbank, Calif. / Thornwall 2-0234 / .C Theodolite cameras, pulse-data cameras, film readers, film assessors, electronic counters. Ss(18) Me(1934) Ic RMSCa Robotyper Corporation, 125 Allen St., Hendersonville, N•. C. / Hendersonville 4246 Automatic typing equipment that can be associated with any electric typewriter, using a record roll pneumatically operated. Ic RMSa Rutherford Electronics Company, 3707 S. Robertson Blvd., Culver City, Calif. / Texas 0-4362 / .C Pulse instruments, time measuring systems, time delay generators. Ss(15) Se(1950) Ic RMSa Sage Electric Corp., 302 N. Goodman St., Rochester 7, N.Y. Resistors. Ic RMSa Sanborn Co., Cambridge 39, Mass. Analog computer systems. Recording papers. Alc RMSa Sangamo Electric Co., Springfield, Ill. Capacitors. Ic RMSa Sarkes Tarzian, Inc., 415 N. College Ave., Bloomington, Ind. Rectifie~s. Ic RMSa Saunders & Co., 66 Westland Rd., Weston 93, Mass. / TWinbrook 4-6071 / ·C 57 Digital computing machinery; information handling devices; related devices. Ss Se Ic Sa SCHWEBER ELECTRONICS, 122 Herricks Road, Mineola, N.Y. / PIoneer 6-6520 / ·C 57 Capacitors and other computer components. Ss(25) Se(1952) Ic Sa Scientific Computing Service, 23 Bedford Square, London WC 1, England / Museum 0808 / *C Problem solving, consulting. Computing service: digital. Ss(15) Me(1937) Dlc RCPa Seismograph Service Corp., P. O. Box 1590, Tulsa - 33 - 1, Okla. Analog computers. Ac RMSa THE SERVICE BURFAU CORPORATION, 590 Madison Ave., New York 22, N.Y. / PLaza 1-5600 / ·C 57 Computi~g and data processing service using all models and types of International Business Machines Corp. machines, including IBM Magnetic Drum Calculators 650 and IBM Electronic Data Processing Machines 704. Comprehensive facilities (including programming) for all applications, such as methods, engineering, control, plant operations, etc. Over 115 service bureaus allover country and at least 4 electronic data processing centers. Subsidiary of IBM. Le(500-) Se(1957, separate corp.; over 30 years, dive IBM) DAc RP.Ca Servo Corporation of America, 2020 Jericho Turnpike, New Hyde Park, N.Y. / Fieldstone 7-2180 / *C Servomechanisms. Automatic controls. Analysis and synthesis for controls manufacturers. Temperature controls by infra-red radiation. Industrial controls. Servo components and test equipment. Analog and digital computers. Ms(350) Se(1946) DASCc RMSa Servomechanisms, Inc., Post & Stewart Ave., Westbury, L.I., N.Y. / Edgewood 4-2700 / also 12500 Aviation Blvd., Hawthorne, Calif. / Osborne 5-7111 / *C Automatic electronic and electro-mechanical cO,ntrol systems and components, analog computers, instrumentation. Airborne digital computers, digital transducers. Ls(800) Se(1946) ASICc RMSa Servonics, Inc., 834 N. Henry St., Alexandria, Va. / TEmple 6-6800 Precision potentiometers incorporating digital techniques, with high linearity, and extended frequency limi ts without ph'ase shift, multi-turn but continuous rotation. Shallcross Mfg. Company,1 ~22 Pusey Avenue, Collingdale, Pa. / Farragut 9-5100 / *C Wirewound resistors, switches, delay lines, for computer and other uses. Ms(300) Me (929) Ic RMSa Shepard Laboratories, Summit, N.J. High-speed typer (up to 1800 cha.racters per second). Ss Se(19S0) Dlc RMSa Short Brothers & Harland Ltd., 208A Regent St., London W. 1, England / Regent 8716 / ·C 57 ,General purpose analog computer, multiplier units, function generators, time delay units, servo-controlled rocking tables, low frequency oscillators, vectorscopes, squarers, sine and cosine generators, etc. Ls(lO,OOO) Le(1905) AICc RMSCa F. W. Sickles Division, General Instrument Corp., 165 Front St., Chicopee, Mass. / LYceum 4-4781 / ·C 57 Computer components, magnetic amplifiers, etc. Ls(2520) Le(192l) Ic RMSa Soci~t6 d'Electronique et d'Automatisme, 138 Blvd. de Verdun, Courbevoie, Seine, France / Defense 41-20 / ·C Analog and digital computers and components. Servomechanisms; electronic equipment for machine tools; electronic recorders. Analog computer OME-L2. General purpose digital computer CAB 2.022. Ms(320) Se(1948) DASc RSMa Computers and Automation / / Societe des Servomechanismes Electroni,ques, 1 rue Chanez, Paris l6e, France Sc RMSa SOLA ELECTRIC CO., 4633 W. 16th St., Chicago 50, Ill. / Bishop 2-1414 / .C 57 Constant voltage transformers, regulated DC power supplies, etc., for computer and other uses. Ms(250) Me(1930) Ic RMSa Solar Mfg. Co., 4000 W. North Ave., Chicago 39, Ill. Capacitors. Ic RMSa Sorensen & Co., Inc., 375 Fairfield Ave., Stamford, Conn. / Fireside 8-5311 / *C Power supplies for computer and other uses. Ms(300) Me(1943) Ic RMSa SOROBAN ENGINEERING, INC., Box 338, Melbourne, Fla. / Melbourne 1143 / (ac 57 Data input-output systems; data preparation devices; output tabulating devices; coding keyboards; paper tape readers and perforators; specialized data computing systems and consulting services on all of above. Ms Se(1953) DIc RMSCa Southern Electronic~ Corp., 239 W. Orange Grove Ave •• Burbank, Calif. / Victoria 9-3193 / .C Precision capacitors, adjustable capacitors. Ms(60) Se(1951) Ic RMSa Southwestern Computing Service, 910 South Boston, Tulsa 3, Oklahoma / Gibson 7-8146 / *C Computing service, solving data reduction and engineering and business problems. Ss(9) Se(1953) Ic RCPa Southwestern Industrial Electronics Co., P. O. Box 13058, Houston 19, Texas Analog computers and simulators. Capacitors, resi~tors. Ac RMSa Specialties, Inc., Syosset, N.Y., and Charlottesville, Va. / Syosset, Walnut 1-2345; Charlottesville, 3-5131 / *C Precision potentiometers, servos, magnetic amplifiers, transformers, sensing elements, etc., for computer and other uses. Ms(300) Se(941) Ic Spectrol Electronics, Division of Carrier Corp., 1704 South Del Mar Ave., San Gabriel, Calif. / ATlantic 9-4178 / ·C 57 Precision wire-wound potentiometers, singleturn and multi-turn, linear and non-linear. Ms(300) Se(953) Ic RMSa . Sperry Rand Corporation, Sperry Gyroscope Division, Great Neck, N.Y. / Fieldstone 7-3600 / .C Ordnance; fire-control equipment. Automatic controls. Navigation equipment, sea and air. R~dar, Loran, gyrocompasses, precision instruments. Ls (18,000) Le(19l0) Ac RMSa Sperry Rand Corporation -- Also SEE Remington Rand Divisions Sprague Electric Co., 377 Marshall Street, North Adams, Mass. / Mohawk 3-5311 / *C 57 Capacitors: minia~ure, and low dielectric hysteresis loss, for computer applications. Standard capacitors; precision and power type resistors; pulse transformers; radio interference filters; shift registers; printed circuits. Ls(6000) Le(1926) Ic RMSa Stackpole Carbon Co., 26 Rittenhouse Place, Ardmore, Pa. Resistors. Ic RMSa Stancil-Hoffman Corp., 921 N. Highland Ave., Hollywood 38, Calif. Magnetic tape recorders. Ic RMSa - 34- Standard Coil Products Co., Inc., 2085 N. Hawthorne Ave., Melrose Park, Ill. Delay lines. Ic RMSa Standard Electric Time Co., 73 Hogan St., Springfield 2, Mass. Analog comp,uteiS. Ac RMSa Standard Instrument Corp., Div. of Heat-Timer Corp., 657 Broadway, New York 12, N.Y. Combined recorder and totalizer, for accurately accumulating data on the operation of a machine, process, or system in plant or office. Ic RMSa THE STANDARD REGISTER CO., Dayton 1, Ohio / Adams 6181 Electronic equipment (called "Stanomatic"), capable of sensing or reading printed codes on business documents and translating them into digital pulses which will actuate office machinery such as card punches, tape perforators, computers, etc. Ls Le Dlc RMSa Stanford Computation Center, Stanford University, Stanford, Calif. / DA 3-4123 / *C 57 Computing service. Education involving uses of computers. IBM 650. Ss(5) Se(1953) Dc RCPa Stereatronics, 66 Westland Rd., Weston 93, Mas&/ TWinbrook 4-6071 / ·C 57 Solid-state information-handling devices: transistor, magnetic, diode, ferro-electric, gas tubes, etc. Ss Se DIc RMSa Sterling Precision Corp., Instrument Division, 34-17 Lawrence St., Flushing 54, N.Y. Analog computers. Computers components. Data processing. Ale RMSa .Steward Mfg. Co., P. O. Box 510, Chattanooga, Tenn. Ic RMSa Magnetic cores. Strand Engineering Co., 1354 N. Main St., Ann Arbor, Mich. / Normandy 2-3127 Research, design, development of equipment and systems; production engineering; building of pilot models. Se(1955) ICc RCPa Streete~-Amet Co., G~ayslake. Ill. / BAldwin 3-4801 / *C Analog-to-digital eonve~ters. Ic RMSa Stromberg-Carlson, Division of General Dynamics Corp., 110 Carlson Rd., Rochester 3, N.Y. Computers. Data systems. Relays for computer and other uses. DIc RMSa Stromberg-Carlson (West Coast), Charactron & Special Products Laboratories, 3225 Hancock Street, San Diego 10, Calif. / Cypress 8-7701 / *C The Charactron, a computer output device for "debugging", graphical display,etc., converting coded information into tabular or graphic alphanumeric information on a . cathode-ray-tube screen; analog-to-digital conversion units. Ms(115) Se(1950) Ic RMSa Stupakoff Div. of the Carborundum Co., Latrobe, Pa. Ic RMSa Magnetic cores. STURRUP, INC., 50 Silver St., Middleton, Conn • .I Diamond 6-9681 / ·C 57 . Ultrasonic delay lines, transducers, etc., for computer and other uses. Ms(60) Se (961) Ic RMSa Sunshine Scientific Instrument Co., 1810 Grant Ave., Philadelphia 15, Pa. / OR 3-5600 / *C 57 Analog field plotting equipment. Ms(65) Se(1947) Ic RMSa Organizations Sunvic Controls, Ltd., Eastern Industrial Estate, Harlow, Essex, England J Data processing machinery; analog computer; analog-to-digital converters. DAlc RMSa Superex Electronics Corp., 4 Radford Place, Yonkers, N.Y. Magn~tic cores. Ic RMSa Superior Carbon Products, Inc., 9115 George Ave., Cleveland 5, Ohio Magnetic cores. Ic RMSa Superior Steatite & Ceramic Corp., 83-91 W. Forest Ave., Englewood, N.J. Magnetic cores. Ic RMSa Swedish Board for Computing Machinery, Drottninggatan 95A, (P. O. Box 6131) , Stockholm 6, Sweden / Stockholm 23 55 90 / *C State central institution for research, de-~-velopment, and computation service on largescale machines. Operates two automatic digital computers, BARK and BESK, designed and built by the Board. Research on numerical analysis; development of new computers. Computing service (digitaD using BARK and BESK. Ss GJ» Se (1949) Dc RMCPa SYLVANIA ELECTRIC PROIlJCTS, INC., 1740 Broadway, New York 19, N.Y. / - / ·C 57 Computers. Computer products: transistors, diodes, electronic tubes. Ls(27,OOO) Le (190D DAlc RMSa SYLVANIA ELECTRIC PRODUCTS INC., ElECTRONIC SYSTEMS DIV., 100 First Avenue, Waltham 54, Mass. / TWinbrook 3-9200 / *C 57 Ground based and airborne electronic digital computers; special purpose digital data transmission systems. High-speed, high temperature transistor switching circuits, etched circuits; other computer components. Radar, countermeasures, communications, and navigation systems. Ls(27,ooO company; 3000 this division) Le (190D DAc RM5Ca Sylvania Electric Products, Inc., Radio and Television Div. -- ~ivision changed to Electronic Systems Div., which see. Sylvania Electric Products, Inc., Woburn Division, 100 Sylvan Rd., Woburn, Mass. / Woburn 2-3500 Semiconductor components, crystal diodes, transistors, and tubes for computer and other uses. Ls Le Ic RMSa ' .l Taller and Cooper, 75 Front St., Brooklyn, N.Y. / Ulster 8-0500 / ·C 56 Data recording and conversion systems, printers, perforators, analog-to-digital converters. Function generators, special purpose computers. Supervisory and control systems; remote control telemetering systems; cardto-tape converters; special punching , and sensing equipment. Mechanical Iunction generator control of machine tools and allied mechanisms. Toll equipment for bridges, highways, turnpikes. Ms (250) Me (193» Dlc RM5a Tally Register Corp., 5300 14th Ave., N.W., Seattle 7, Wash. / Dexter 5500 / *C 57 Special purpose business machines; electromagnetic pulse counters and pu sed relays; high-speed data reduction systems for telemetering applications; digital-input, - 35 - multiple-symbol X-Y plotter with continous grid printing and numerical abscissa. Ss (25) Se (1948) DICMc RM5Ca Tarc Electronics, Inc., 48 Waban Ave., Westbury, L.I., N.Y. Magnetic tape recorders. Ic RMSa Taylor Instrument Co., Rochester, N.Y. Automatic controllers. Ls Le Cc RMSa Technitral Engineering Co., 2751 North 4 Street, Philadelphia 33, Pa. / Garfield 6-9105 / ·C 56 Computing and control equipment. Complete digital systems. Components, pulse transformers. Electrical and acoustic delay lines. High-speed memories. Digital computer "blocks". Ms (105) Se (1947> DAc Rlfia Technology Instrument Corporation, 531 Main St., Acton, Mass. / Colonial 3-7711 / ·C 57 Precision potehtiometers, linear and nonlinear, single and multi turn; potentiometers for speci.al' applications. Ms(under 500) Se (1946) Ic REa TELECOMPUTING CORP .', 12838 Saticoy St., No. Hollywood, Calif. / Po 5-8160 and St 7-8181 / ·C 57 Automatic data'reading, recording, and plotting equipment. Automatic business data accumulation and analysis equipment. High~~solution shaft digitizing and recording equipment; automatic graph readers; digital plotters; data reduction services. Ms~50) Se (1947> OCMc RMSPa Telectro Industries Corp., 35-16 37th St., Long Island City 1, N.Y. Magnetic cores, magnetic tape recorders, magnetic drums. Ic RMSa Tele-Dynamics, Inc., 32 Walnut St., Philadelphia 4, Pa. / Evergreen 2-5015 / *C 56 Computers used as end item in information transmittal systems, telemetering systems. Ms (365) Me (1943) Ic RMa TElEPt£TER MAGNETICS, INC. 2245 Pontius Ave., Los Angeles 64, Calif. / Granite 7-4211 / ·C 57 Special purpose data processing machines. Magnetic storage systems. Computer memory components; magnetic cores, drivers, reading amplifiers; automatic core testing equipment. High-capacity rapid-access ferrite core memories. Systems design and development. Ms (140) Se (1956) Delc RMSa (Formerly division, now subsidiary, of International Teleme~er Corp., which see.) Telequipment Corp. -- moved, left no address. , TELEREGISTER CORPORATION, 445 Fairfield Avenue, Stamford, Conn. / Fireside 8-4291 (New York City, Ludlow 5-8900) / ·C 57 Digital special purpose computers. Data processing systems for special applications: inventory control, invoicing, travel reservations, flight data, stock market quotations, maintaining and servicing equipment, etc. Electro-mechanical digital display systems. Magnetronic Reservisor, in use at American Airlines reservations center. Magnetronic stock quotation system in use in Toron to Stock Exchange. Ls (600) Me (1928) Dlc RMSCa . Teletypesetter Corporation, 2752 Clybourn Avenue, Chicago 14, Ill. / Graceland 7-5250 / and elsewhere / ·C Tape perforators and operating units for local or distant automatic control of Linotypes and In tertypes • Ms (00) Me (1929) Ic RM5a Computers and AutoDlation The Teller Company, 357 No. Main St., Butler, Pa. / Butler 75-739 Au tomatic controls. Ms (65) Se (951) Cc RftSCa TEXAS INSTRUMENTS INCORPORATED., 0000 Lemmon Ave., Dallas 9, Texas / Fleetwood 21781 / and elsewhere / *C 57 Germanium and silicon transistors; silicon diodes and rectifiers; precision resistors -- for computer and other uses. Ls(4500) Me (193D Ic Rltfia Thermosen, Inc., 361 West Main St., Stamford, Conn. Diodes. Ic RMSa Thomas & Skinner, Inc., 1120 East 23rd St., Indianapolis 7, Ind. Magnetic tape, magnetic cores. Ic RMSa Thor Cepamics, Inc., 225 Belleville Ave., Bloomfield, N.J. Magnetic cores. Ic RftSa Times Facsimile Corp., 540 W. 58th St., New York 19, N.Y. Facsimile transmitting and receiving equipment; sensitized paper. Ic RMSa Tobe Deutschmann Corp., Norwood, Mass. / NOrwood 7-2620 Capacitors, delay lines. Ic RMSa Transistor Products, Inc., 241 Crescent St., Waltham 54, Mass. / WAltham 5-9330 / *C Transistors, diodes. Ms(50) Se(l952) Ic RMSa Transitron Electronic Corp., 403 Main St., Melrose 76, Mass. Ic RMSa Diodes, rectifiers. Triad Transformer Corp., 4055 Redwood Ave., Venice, Calif. Pulse transformers. Ic RMSa TRIO LABORATORIES, INC., 4025 Merrick Rd., Seaford, L.I., N.Y. Analog computers, test equipment. Alc R&f>a Tru Ohm Products, 2800 N. Milwaukee Ave., Chicago 18, Ill. Resistors. Ic RMSa TUNG-SOL ElECTRIC INC., 95 8th Ave., Newark 4, N.J. / Humboldt 2-4200 / *C 57 Electron tubes, t~ansistors, for computer and other uses. Ls (6500) Le (1 ~4) Ic RMSa TYPATAPE INC., 60 East 42nd St., New York 17, N.Y. / Oxford 7-1964 / *C 57 Recording equipment which produces a printed tape that can be read photoelectrically by other machines. The Typatape Recorder'can be attached to most existing accounting machines, billing machines, adding machines, cash registers, etc., to provide a numeric . common language record as a by-product of regular key input. The Typatape can be converted by means of a tape-to-card converter. Ss (l0) Se (956) Ic RMSa !! Ultrasonic Corp. -- believed to have gone out of business. Underwood Corp., One Park Ave., New York 16, N.Y. / Lexington 2-7000 / and elsewhere / *C 56 Accounting machines, adding machines, typewriters. Elliott-Fisher and Sundstrand - 36 - Machines. Underwood Samas punched card accounting machines and systems. Underwood electric typewriters, used in Harvard Mark II calculator. ElECOM electronic computers have been transferred to Digitronics, which see. Ls (company 13,000; laboratory, lOO) Le (1894) Dlc RMSa Union Electric & Mfg. Co., 1057 Summit Ave., Jersey City 7, N.J. Delay lines. Ic RMSa Union Switch and Signal Co., Division of Westinghouse Airbrake, Pittsburgh 18, and Swissvale, Pa. Railroad signaling and control systems. Aircraft flight simulators; mobile test rack for testing analog computers including simulators. Ls (4000) Le Ic RMSa United Mineral & Chemical Corp., 16 Hudson St., New York 13, N.Y. Magnetic cores. Ic RMSa U. S. Air Force, Cambridge Research Center, 230 . Albany St., Cambridge 39, Mass. / UNiversity 4-4720 Developed the ABC~utomatic Binary Computer}. Has a Computer Research Corp-102. Ms Me IDc Ga U. S. Air Force, Aeronautical Res~arch Laboratory, Directorate of Research, Wright Air Development Center, Wright-Patterson Air Force Base, Ohio / Ke 7111, X28235 / *C 57 Computing service (for Air Force us~ has General Electric Oarac; Univac 1103; Bendix DDA; Reacs, Gedas. Ms (62) Se (l948) DAc ROOPa U. S. Air Force, Commander, Rome Air Development Center, Statistical Services Division, Recs Griffiss Air Force Base, Rome, N.Y. / Rome 3200, ext. 7-1219 Computing service: analog, digital; ,for government only. Has Elecom 120, Bendix Digital Differential Analyzer 0 12, Reeves Electronic Analog Computer, Benson-Lehner data reduction equipment, considerable IBM data processing equipment. Ms (50) Se (l954) Dlc RCPa U. S. Air Force, Computation Research Sec., Wright Air Development Center, Wright-Patterson Air Force Base, Dayton, Ohio Computing service, analog and digital: Card programmed calculators, Reacs, punch card; for government only. Se DAlc RCPa U. S. Air Force, Inst. of Technology, WrightPatterson Air Force Base, Dayton, Ohio / *C Electronic strategy machine, conceived by L. I. Davis. Philbrick Reac and GEDA equipment on hand. Ms(3)O) Se(946) DAlc Ga U. S. Army, Ballistic Research Laboratories, Aberdeen Proving Ground, Aberdeen, Md. / *C Computing service (digital); for government and government contractors only. Has Bell, Eniac, Ordvac computers and others. Developing supplementary and modernizing components. Ms Le DAc Ga U. S. Ceramic Tile Co., Diamonite Div., 217 Fourth St. N.E., Canton 2, Ohio Magnetic cores. Ic R&f>a U. S. Components, Inc., 454 East l48th St., New York 55, N.Y. Connectors. Ic RMSa United States Dynamics Corp., 1250 Columbus Ave., Boston 20, Mass. / HIghland 5-3850 / *C 57 Organizations Silicon diodes and power rectifiers, transistors, germanium diodes, and rectifiers, for computer and other uses. Ms(lOO) Se (955) Ic RMSa U. S. Electronics Development Corp., 1323 Airway, Glendale I, Calif. Capacitors. Ic RMSa U. S. Navy, Naval Proving Ground, Computation and Exterior Ballistics Laboratory, Dahlgren, Va. / X627 / *C 57 . Computing, programming, and analysis services; for government and government contractors only. Has digital computers: Aiken Dahlgren Electronic (Mark lID, and Naval Ordnance Research Calculator (NORC). Ms (45) Me (942) Dc RCPGa U. S. Navy, Aviation Supply Office, Data Processing Oivi;.ion, Philadelphia, Pa. / *C 57 Operates IBM 650 and IBM 702 for inventory control. Government use only. Ls Me Dc Ga U. S. Navy, Office of Naval Research, Special Devices Center, Port Washington, New York / Port Washington 7-3800 / *C 56 Training devices using analog and digital computers. Ls(500) Me(194m DASMc RMaiBa U. S. Navy, Naval Research Laboratory, Washington 25, D. C. / JO 3-6600 / *C 57 NAREC digital computer. Analog computers, servo mechanisms and data reduction. Ls (3400) Le (923) DASc RaiPa United Transformer Co., 150 Varick St., New York 13, N.Y. Delay lines. Ic RMSa Univ. of California, Berkeley, Calif. / *C 56 Computing service. Has CALDIC, California Digital Computer; also IBM 701. Ss(lO) Se 0947> DAc RPCa University of California, Department of Mathematics, Numerical Analysis Research, Los Angeles 24, Calif. / Granite 3-0971 and Bradshaw 2-6161 / :::C 5'1 Research and teaching in use of digital computers for scientific computation. Operates SWAC on loan from the Office of Naval Research. Maintains for the Office of Naval Research a definitive research book collection in numerical analysis and related areas, especially mathematics. Teaches eight courses in numerical analysis. Successorto National Bureau of Standards Institute for Numerical Analysis. Ss(25) Se (954) Dc RPCa University of Cambridge, University Mathematical Laboratory, Corn Exchange St., Cambridge, Englang / *C Built Edsac. Computing service (digitaD f or Un i vers i ty • Ss (3» Me (939) Dc RCP a University of Illinois, Urbana, Ill. Built electronic digital computer Ordvac for Ballistic Research Laboratory, Aberdeen. Also Illiac on same design, but with faster input-output. Dc RCPa University of Manchester, Mathematical Laboratory,~ Manchester, England / *C Has automatic electronic digital computer built by Ferranti Electric Ltd. This laboratory developed much of the design. Ss(8) Se 0947> Dc RPa - 37 - UNIVERSITY OF MIOlIGAN, Willow Run Laboratories, Willow Run Airport, Ypsilanti, Mich. / Ypsilanti 5110 / *C 57 Digital and analog computers, including electronic and electromagnetic 'computers and simulators; both special and general purpose. Including MIDAC, IBM equipment, desk calculators, data processing systems. Computing services, including analysis and computation using all types of computers. Instruction in components of and the use of electronic ~omputers of all types, including programming, coding, numerical methods, etc. Ls(600) Se (946) DAc RCPa University of Pittsburgh -- SEE Mellon Institute. University of Rochester, Computing Center, Rochester 20, N.Y. / Gr 3)00 Computing services; Burroughs ElOl computer, IBM 650, available. Se(1956) Dc RMSCPa University of Sydney, Dept. of Electrical Engrg., and C.S.I.R.P. Section of Mathematical Instruments, Sydney, New South Wales, Australia / *C 57 Research and design of analog computers, digital differential analysers, servomechanisms, automatic control machinery. AICc RCa University of Toronto, Computation Centre, Toronto, Ontario, Canada / Walnut 3-1327 / *C 57 Computing services. Programming and consulting services. Time available on University of Tor.onto automatic computer Ferut. Ss Me Dlc RCPa University of Wisconsin, Numerical AnalysiS Laboratory -- computing service apparently discontinued. Valor Electronic Components Co., 5808 Marilyn Ave., Culver City, Calif. Data processing, digital computers. Dlc RMSa Vanguard Electronics Co., 3384 Motor Ave., Los Angeles 34, Calif. Delay lines. Ic RMSa Vari-Ohm Corp., Sunrise Highway, Amityville, N.Y. Potentiometers. Ic RMSa Vaucanson, 11 'Rue du Surmelin, Paris 2Oe, France / MENilmontant 83-40 / *C 57 Calculating machines. Ms (400) Le (896) Dc RMSa Vectron, Inc., 1605 Trapelo Rd., Waltham 54, Mass. / TWinbrook 3-8700 / *C 57 Special computers, precision gear assemblies, etc. Ms (225) Se (949) Dlc RMSa Veeder-Root, Inc., Hartford 2, Conn. Analog-to-digital converters; counters, mechanical & electrical. Ic RMSa VlcrOR ADDING MACHINE CO., 3~0 No. Rockwell St., Chicago 18, Ill. / KEystone 9-8210 / *C 57 Digital computers and related integrated data processing systems. Digit-matic plain or calculating printers. Adding machines, etc. Ls (2200) Le (918) Dc RMSa Victory Engineering Corp., Springfield Rd. & Torio Ct., Union, N.J. Transistors. Ic RMSa VISlrecord, Inc., 54 Railroad Ave., Copiague, L.I., N.Y. / Amityville 4-4~0 / *C Computers and Automation Computing service: digital. Instruction and training. Have computer with 53)()-word magnetic drum memory plus 100-word magnetic core memory built of Burroughs pulse control equipment. AlSo IBM 650. Ss (40) Se(195Q) DAc RCPa Jervis B. Webb Co., 8951 Alpine Avenue, Detroit 4, Mich. / Webster 3-8010 / *C Conveyor engineering and manufacturing. Servomechanisms, automatic control machinery, automatic materials handling machinery. Ls (600) Le (1919) SCMc RMia Weber Electronics, 315 W. 9th St., Los Angeles 15, Calif. / Tucker 9168 / *C 57 Weber Analog Computers. Ac RMSa Webster-Chicago Corp., 5610 W. Bloomingdale, Chicago 39, Ill. Magnetic tape recorders. Ic RMSa Webster Electric Co., 1900 Clark St., Racine, Wisc. Ic RMSa Magnetic tape recorders, etc. Weems System of Navigation, 227 Prince George St., Annapolis, Md. Automatic navigation systems. Me Ic RCPMSa Welwyn International, Inc., 3355 Edgecliff Terrace, Cleveland, Ohio Resistors. Ic RM5a West Coast Electronics Co., 5873 W. Jefferson Blvd., Los Angeles 16, Calif. Analog computers, data processing machinery. Alc RMSa Western Coil Products Co., 2989 Middlefield Rd., Palo Alto, Calif. Delay lines. Ic RMSa Western Gear Corp., Electro Products Div., 132 W. Colorado St., Pasadena, Calif. Magnetic cores. Ic RMSa Western Gold & Platinum Co., 589 Bryant St., San Francisco 7, Calif. Magnetic cores. Ic RMSa Western Union Telegraph Co., 60 Hudson St., New York 13, N.Y. Sensitized paper. Ic RMSa Westinghouse Air Brake Co., Div. of Union Switch & Signal, Pittsburgh 18, Pa. Analog computers. Ac RMSa Westinghouse Electric Corp., Analytical Department, East Pittsburgh, Pa. / Express 1-2800 / *C 57 Computing service: digital and analog. Electronic and passive element analog computers; analog-to-digital conversion equipment; automatic control devices. DC and AC calculating boards Dlc RCM5a Ward Leonard Electric Co., 115 MacQuesten Pkwy. So., Mt. Vernon, N.Y. Relays, resistors. Ic RMSa J. C. Warren Corp., 21 Hanse Ave., Freeport, N.Y. Magnetic tape recorders. Ic RM5a The George Washington Univ., Logistics Research Project, 707 22nd St., Washington 7, D.C. / S ter ling 3-4539 ONR relay computer with magnetic drum memory. Data-handling machines. ONR electronic digital computer with magnetic drum memory. Computing service (digital) using these machines. Ms (50) Se (1950) Dc RCPa Waters Manufacturing, Inc., Boston Post Rd., Wayland, Mass. / Elmwood 8-2777 / *C 57 Potentiometers for servomechanisms, compu ters, and other uses. Ms (125) Se (1951> Ic RMa Watson Scientific Computing Laboratory, 612 West 116 St., New York, N.Y. / Monument 6-9000 / *C The pure science department of International Business Machines Corp. Simultaneous linear equation solver. Astronomical plate measuring machine. IBM punch card machines. Research and instruction. Maker of Naval Ordnance Research Calculator (NORO. Ms (100) Me (1945) DAc RCPa WAYNE STATE UNIVERSITY, COMPUTATION LABmATORY, Cass Ave., Detroit 2, Mich. / TEmple 1-1450 / *C 57 - 38 - Organizations Westronics, Inc., 3605 McCart St., Fort Worth 8, * Tex. Analog computers, digital computers, analogto-digital converters; potentiometers. DAlc Rr.5a Westrex Corp., III 8th Ave., New York 11, N.Y. Magnetic tape recorders; facsimile receiving equipment, sensitized paper. Ic RMSa Wharf Engineering Labs., Fenny Compton Warwickshire, England / Fenny Compton 30 / *C' Magnetic drums, recording heads, transformers. Ss (5) Se (1949) Ic RMSa John F. White head Co., P. O. Box 267, No. Haven, Conn. Magnetic cores. Ic RMSa Wiancko Engineering Co., 255 North Halstead Ave., Pasadena, Calif. Digital ballistics analyzer computer, computer components, etc. DAlc RMSa Wright Aeronautical, Wood Ridge, N.J. / PRescott 7-2 0 / *C 56 Data processing machines, components. Dlc RM5a Wright Engineering Co., 180 E. California St., Pasadena, Calif. Analog-to-digital converters, magnetic drums. Ic RMSa Yale & Towne Manufacturing Co., Powdered Metal Products Div., 9335 Belmont Ave., Franklin Park, Ill. Magnetic cores. Ic RMSa Zator Co., 79 Milk St., Boston 9, Mass. / LIberty 2-4624 / *C D~g~tal equip~en~ and systems, for coding, filing, and finding information (lato coding systems). High-speed selectors for notched cards. Methods for use of digital computing machines to recover information. Ss Se(947) Ic RCSa Zeuthen & Aagaard Ltd., 6 Esplanaden, Copenhagen, Denmark / Central 3795 / *C Portable adding machine (ConteX>; dictating machine (Rex-Recorder) with magnetic recording on plastic\disc using impregnated particles and permitting more than 10 000 reuses· duplicating machines, etc. Ls Le Ic RMS~ ZUS~ KOMMANDIT-GESELI.SCHAFT, Kreis Hunfeld, Neukirchen, West Germany / - / *C 57 Relay and electronic computers. Ms(l80) Se (1949) Dc RMSa Are you Looking for REFERENCE INFORMA TION . in the Computer Field? COMPUTERS AND AUTO~ATION publishes 16 kinds of reference information that computer people can hardly afford to be without. Latest issues containing each are indicated. : Roster of Organizations in the Computer Field (June 1957) Ros ter of Computing Services (June 1957) Roster of Consulting Services (June 1957) Organi~ations Computing Machinery and Automation: Types of Automatic Computing Machinery (March 1957) Roster of Automatic Computers (June 1956) Outstanding Examples of Automation (July 1954) Commercial Automatic Computers (Dec. 1956) Types of Components of Automatic Computing Machinery (March 1957) Products and Services in the Computer Field: Products and Services for Sale or Rent (June 1957) Classes of Products and Services (June 1957) WordJL_apfl Terms: Glossary of Terms and Expressions in the Computer Field (Oct. 1956) (reprinted ~1.00) , Information and Publications: Books and Other Publications (many issues) New Patents (nearly every issue) Ros ter of Magaz ines (Dec. 1955) Titles and Abstracts of Papers Given at Meetings (many issues) People: Who's Who in the Computer Field Cumulative (1957, Extra No. Elf 212 pp.) BACK COPY PRICE: If available. $1.25 each, except: June 1955 and 1956, $4.00, and June 1957, $6.00 (the June issue is the Computer Directory issue); 1957, No. EI, Who's Who in the Computer Field, $17.50. .- - - - - Mail this coupon (or a copy of it) - - - To: Berkeley Enterprises, Inc. 815 Washington St., RI04 Newtonville 60, Mass. Please send me the following: I enclose $ in full payment. If not satisfactory, returnable within week for full re-I fund (if in good condition) • 1 *1 - 39 - My name and address are attached. I 1 f Part 2 of The Computer Directory, 1957 __ the June, 1957 issue of '~mputers and Automation" BUYERS' GUIDE FOR THE COMPUTER PRODUCTS AND SERVICES FOR (Cumulative, information as of The purpose of this list) '~he Buyers' Guide", is to give at least some information about every product or service in the computer field that is offered for sale or rent and that We have been able to learn something about. This is the third edition of this list; it covers abou t 39 pages and contains over l:J>O entries. list. ~y SALE OR RENT 22, 1957) Ouestionnaire. Many of the entries in this list have been derived from answers to questionnaires which we sent outin February, March, and April to over 300 suppliers in the computer field. The form of this questionnaire, called the "Product Entry Form", is shown on page 43. For a new or changed entry. the information we want is asked for on this form; the answers may be written on the form or on any piece of paper. Customary sales literature is difficult for us to use, and need not be sent. There are two classes of entries in this Class One entries are those for which·THE NAME OF THE SUPPLIER IS ALL IN CAPITALS., Class One entries are likely to be complete and ... reliable; the supplier. has either sent us his entry in response tOI~ur questionnaire or approved the proposed entry which we sent to him; he has thought enough ·.of'.~~he value. of' the entry to pay the requested nominal charge of $10 per entry, to help defray the cost of preparing and printing this part of the directory; and we have edited the entry, though usually in a minor way. An index to Class One entries by name of supplier has been provided. fIELI): Style of Entry. The full entry for a product or service in the list consists of: name of supplier, address / name or identification of product or service / DESCR: a brief description of the product, in about 20 to 50 words -- see examples in the list / USE: how it is used / price range, and whether for sale or rent. Every entry is subject to editing. Class Two entries are those for which the name of the supplier is not all in capitals. Such entries are derived from other information reaching us. In some cases answers to questionnaires have been received where the supplier has not believed it desirable to make any payment; many of these entries have been condensed. In many cases, we have had no information at all from the supplier enabling us to verify what we have said about his product or service. In general, Class Two entries are less likely to be complete and reliable. - 40 - Abbreviations. The abbreviations used include: DESCR -... description; *a -... address above (where several products made by one supplier are listed in succession). Corrections. We have tried to make each entry correct to the extent of information in our possession. But it is inevitable that at least some errors have occurred, and we shall be glad to publish corrections. There will be no charge of course where the incorrectness of information is attributable to our error; in other cases there will be a requested nominal charge of $10 an entry to be paid at the time when the new entry is sent in to us. Buyers' Guide for the Computer Field: Products and Services for Sale or Rent LIST OF HEADINGS In order to find information on products and services, it will be convenient to ref e r to the following list of 69 headings. !: 1. Adding Machines Q: 37. Office Machines (computer types) (s e e also specific types) Paper Tape Filing Systems Paper Tape Punches Paper Tape Readers Patchcords Photoelectric Card Readers Photoelectric Decoding Readers Photoelectric Tape Readers Photographic Recorders (computer types) Plotters Potentiometers Printers (see also Line-a-Time Prin ters, Electric Typewriters, c 0 ntrolled) 49. Publications 50. Pulse Transformers 51. Punch Card Machines R: 52. 53. 54. 55. 56. 57. ~: 58. Scanners 58.5. Semiconductors 59. Signaling Controls 60. Simulators 61. Stepping Switches 62. Storage Systems (see Delay Lin e s , Magnetic Storage Systems) 63. Synchros Addressing Machines Analog Computers Analog-to-Digital Converters Arithmetical Circuits (for Digital Computers) 6. Automatic Control Equipment 2. 3. 4. 5. ~: 7. Capacitors (computer types) 8. Card-to-Tape Converters 9. Computer Components (see also specific types) 10. Computers (see also: Analog Computers, Digital Computers) 11. Computers, Test Equipment 12. Computing Services 13. Connectors (computer types) 14. Consulting Services 15. Courses by Mail (computer field) .Q: 16 • Data Processing Machinery (see a 1 s 17. 18. 19. 20. 21. 22. g: 0 Digital Computers) Delay Lines (computer types) Desk Calculators Differential Analyzers (see also Analog Computers) Digital Computers Digital-to-Analog Converters Diodes (computer types) 23. Electric Typewriters, controlled 24. Electronic Tubes (computer types) 65. Transistors 66. Translating Equipment !: 67. Visual Displays K: 27. Keyboards 1: 28. Line-a-Time Printers 29. Logical Circuits (for Digital Computers) M: Recording Papers Rectifiers Relays (computer types) Resistors Resolvers Robots, Small 1: 64. Tape-to-Card Converters F: 24.5. Facsimile Equipment 25. Fire Control Equipment I: 26. Information Retrieval 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 48. f.: 30. Magnetic Cores (computer types) Magnetic Drums 32. Magnetic Heads 33. Magnetic Storage Systems 34. Magnetic Tape 35. Magnetic Tape Handlers (see also Ma gnetic Tape Recorders) 36. Magnetic Tape Recorders (see also Magneti~ Tape Handlers) ~l. - 41 - Buyers' Guide for the COmputer Field; .Product.s. and Services, for Sale or Relll INDEX-BY, SUPPLIER TO CLASS ONE ENTRIES . Class One entries are those for which THE NAME OF THE SUPPLIER IS ALL IN CAPITALS. Class One entrie~ are likely to be more complete and reliable; the supplier has either sent us his entry or approved the proposed entry, and has considered his entry important enough to pay the requested nominal charge of $10 'per entry. The number refers to the number in the list of headings"which also appears on the upper corners of the pages of "Products and Services." 14 John Diebold & Associates, Inc. Donner Scientific Co. 3 Ebasco Services, Inc. 14 Electralab, Inc. 9 12, 14, 20, Electrodata Div. of Burroughs Corp. 23, 35, 39, 40, 44 Electronic Associates, Inc. 3, 6, 12, 16, 46 Electronic Engineering Co. 16 Elliott Addressing Machine Co. 2 Epsco, Inc. 4, 6, II, 17, 21, 30, 62, 64, 66, 67 'ESC Corp. 9 17, 20, 31, 40, 44 Ferranti Electric, Inc. Ferranti Ltd. 12 Fischer g Porter Co. 4, 16, 48 Ford Instrument Co., Div. of Sperry Rand Corp. Adalia Computations, Ltd. 12 Adalia, Ltd. 14 Addressograph-MUltigraph Corp. 2, 8, 16, 24.5, 48 AEC Computing Facility 12 Airborne Instrument Laboratories, Modac Division, 16, 35 Aladdin Electronics 9, 50 Allegany Instrument Co., Inc. 3, 10, 20, 60 R.C. Allen Business Machines, Inc. 1 Allies' Products Corp. 55 ALWAC Corp. 16, 20, 31, 32, 33, 46 American Electronics, Inc. 9, 56, 63 American Machine & Foundry Co. 12 Amperite Co., Inc. 54 Ampex Corp. 16, 24.5, 34, 36 Amphenol Electronics Corp. 13 Andersen Laboratories 17 The Arnold Engineering Co. 30 Atlas Precision Products Co. 3 A~dio Devices, Inc. 34 The Austin Co. 3, 4, 6, 14, 16, 20, 64 Automatic Electric Co. 54,' 61 Automation Engineers Co. 14 Autonetics, A Div. of No. American Aviation, Inc. 10, 19, 20 Bank of America National Trust and Savings Association 12 Beckman Instruments Inc., Systems Division 4, 16, 21, 30 Bendix Aviation Corp. 3 Bendix Aviation Corp., Research Laboratories Division 6, 16, 20, 21, 60 Bendix Computer Div., Bendix Aviation Corp. 4, 6, 12, 16, 19, 20 Berkeley Division, Beckman Instruments, Inc. 3 The Bristol Co. 6, 9, 47 British Tabulating Machine Co., Ltd. 51 Bryant Gage & Spindle Division 17, 31 Burlingame Associates, Ltd. 3, 4, 16, 33, 46 15 Business Electronics, Inc. Canning, Sisson & Associates 14 CBS-Hytron 22, 24, 58.5 C.P. Clare & Co. 54, 61 Coleman Engineering Co. 16 25 The Foxboro Corp. 3 The Franklin Institute Laboratories for Research and Development 12 16, 18, Friden Calculating Machine Co., Inc. 23, 39 H.S. Gellman & Co. Ltd. 14 General Ceramics Corp. 30 General Kinetics Inc. 12 The Geotechnical Corp. 9 Haller, Raymond & Brown, ,Inc. 9 Hammerlund Mfg. Co., Inc. 6 N.V. Hollandse Signaalapparaten 25 Hoover Electronics Co. 16 Hughes Research & Development Laboratories, Hughes Aircraft Co. 3, 16, 20 Industrial Nucleonics Corp. 4, 6 International Business Machines Corp. 8, 20, 23, 45, 51, 64 International Resistance Co. 22, 53, 55 J.V. Kane & Co. II, 51 12, 14 KCS Data Control, Ltd. A. Kimball Co. 16, 51 The Kybernetes Corp. 16 Laboratory for Electronics, Inc. 20 Lansdale Tube Co., Div. of Philco Corp. 65 Link Aviation, Inc. 3 Littelfuse, Inc. 9 6, 9 Magnetic Research Corp. 18 Marchant Calculators, Inc. Marchant Research, Inc. 16 Massachusetts Institute of Technology 20 Mellon Institute of Industrial Research 9 Metron Corp. . 9, 51 Monroe Calculating Machine Co. 5, 6, 9, 10, 16, 20, 25, 26, 27, 29, 30, 31, 32, 33, 59, 62 Moore School of Electrical Engineering 12 F.L. Moseley Co. 46 12, 14, 16, 51 National Analysts, Inc. 12 Northrop Aircraft, Inc. Computing Devices of Canada, Ltd. 12, 14, 20 Control Instrument Co., Inc. 28, 43 Council for Economic & Industry Research, Inc. 12, 14 Cubic Corp. 16 Cudahy Publishing Co. 49 Datamatic Corp. 6, 12, 16, 20 Data Processing Digest 49 The Datics Corp. 12, 14 Daystrom Systems 14 - 42 - ~uyers' Nuclear Development Corp. of America 14, 16, 20 Olivetti Corp. of America 1, 18 ORRadio Industries 34 Packard-Bell Electronics Corp. 4, 10, 21 Panellit lDc. 6, 14 George A. Philbrick Researches, Inc. 3, 10 Philips Electronics, Inc. 3 Potter Instrument Co., Inc. 4, 28, 3D, 33, 35, 40, 44, 48 Radiation, Inc. 4, 16, 21, 48 Radio Corp. of America 9 3D, 54 Radio Corp. of America, Components Div. Radio Corp. of America, Electron Tube Div.9, 22, 65 Radio Corp. of America, Semiconductor Div.9, 22~ 65 Radio Receptor Co., Inc. 22, 53 9, 22, 24, 53 Raytheon Manufacturing Co. Recording & Statistical Corp. 12 Remington Rand Univac Div., Sperry Rand Corp. 1, 3, 8, 12, 16, 18, 20, 31, 51, 64 Resistance Products Co. 55 16 Richardson Camera Co. Schweber Electronics 7, 9, 10, 13, 22, 47, 54, 55 The Service Bureau Corp. 12 Sola Electric Co. 9, 53 9, 14, 20, 23, 27,39,40 Soroban Engineering, Inc. The Standard Register Co. 43 Sturrup, Inc. 9, 17 Sylvania Electric Products, Inc. 9, 16, 20, 22 24, 65 Telecomputing Corp. 12, 16 Telemeter Magnetics, Inc. 6, ro, 33, 34, 35 Teleregister Corp. 16, 20, 31, 67 Texas Instruments Incorporated 53, 55, 65 Trio Laboratories, Inc. 11 T~ng-Sol Electric, Inc. 9 52, 64 Typatape, Inc. University of Michigan, 12 Victor Adding Machine Co. 5, 16 The Walkirt Co. 5 Wayne State University 12 Zuse Kommandit-Gesellschaft 11, 20 Guide • Product Entry Form for The Computer Directory and Buy:ers...'. Guide ..... 1957 THIS IS THE INFORMATION WE WANT FROM YOU: 1. Name or identification of product (or service)? 2. Brief description (20 to 50 words) : _ _ __ 3. How is it used?_ _ _ _ _ _ _ _ _ _ _ __ 4. What is the price range?_ _ _ _ _ _ _ __ 5. Under \1hat headings should it be listed?_ _ HERE IS THE INFORMATION WE PUBLISHED LAST YEAR: Under the. heading: _ _ _ _ _ _ _ _ _ _ _ _ __ Entry: Additions, changes, remarks? Organization_________________________________ Address______________________________________ Filled in by_________Title____D,ate_ _ When filled in, please send this form to COMPUI'ERS AND AUTOMATION (address above), with $10.00 requested nominal charge per entry, on or be for e April 30, 1957. . ) $10.00 enclosed. Above is the form which was used for the questionnaires to suppliers. - 43- COmputers and Automation 1 2 . types of tabulating equipment I USE: wherever repetitive writing of information is required I $65 to ROSTER $18,000 I 2 1. ADDING MACHINES R. C. ALLEN BUSINESS MACHINES, INC., Front St. , N. W., Grand Rapids 4, Mich. I adding machines, bookkeeping machines, cash registers I 1 Bell Punch Co., Ltd., England I adding machines I 1 Burroughs Corp., Detroit, Mich. I adding machines, accounting machines, and bookkeeping machines I 1 Clary Multiplier Corp. I multiplying machines I 1 Facit, Inc. I adding machines, Odhner adding machine with multiplying features I 1 Felt & Tarrant Mfg. Co. I adding and calculating machines, key driven, electric, and non-electric I 1 Lanston Industries, Inc., Barrett Adding Machines Div. I adding, subtracting, and printing desk calculators I 1 Monroe Calculating Machine Co. I adding machines, desk calculators I 1 OLIVETTI CORP. OF AMERICA, 580 Fifth Ave. , New York 36, N. Y. I Single and duplex register desk adding machine I DESCR: single register machine (Electrosumma 14) features 10-11 capacity, single, double and triple cipher keys, direct subtraction and credit balance. Two register adding machine (Duplex 21) features 12-13 capacity, high speed, simultaneous inter-register operation, direct subtraction and credit balance I USE: used when high speed, high capacity simplified keyboard is required I single register $345 + F.E. T.; two register $460+ F.E. T. 11 Reliable Typewriter & Adding Machine Co. I Adding Machines 11 REMINGTON RAND, DIV. OF SPERRY RAND CORP., 315 4th Ave., New York 10, N. Y. I Electric Adding Machine I DESCR: 10-key keyboard operated by touch method I USE: business figurework I $301 to $625 I 1 Underwood Corp. I Accounting machines, adding machine, Underwood, Elliott Fisher and Sundstrand machines I 1 Zeuthen & Aagaard, Ltd., Denmark I adding machines I 1 2. ADDRESSING MACInNES ADDRESSOGRAPH-MULTIGRAPH CORP., 1200 Babbitt Rd., Cleveland 17, Ohio I Magnetic Tape Electronic Printer I DESCR: reads data contained on magnetic tape and prints at 1,500 to 3,000 lines per minute onto ordinary continuous paper; parallelserial machine I 2 ELLIOTT ADDRESSING MACHINE CO., 143 Albany st., Cambridge, Mass. I Elliott Addressing Machines I DESCR: high speed addressing equipment with tabulating and statistical analysis functions; typewrite able address stencils-manual or automatic preparation operated in conjunction with other -44- 3. ANALOG COMPUTERS (see also DIFFERENTIAL ANALYZERS) Aeronutronic Systems Inc. I Analog computing machinery/3 Ahrendt Instrument Co. I Analog computers I 3 Aircraft Armaments, Inc. I Analog computers I 3 ALLEGANY INSTRUMENT CO., INC., 1091 Wills Mountain, Cumberland, Md. / Type K-7 Error Computer / DESCR: simulates error-producing factors involved in wire strain transducer systems commonly employed in measuring force, strain, pressure, torque, etc.; computes by analog the effect of the various factors and presents the error directly in percent of correct magnitude / USE: values for system parameters are set on appropriate dials. The Error decade and Vernier are then adjusted to obtain a "null" reading and the ErrQr Decade and Vernier will then read percent error I $3565 I 3 American Electronics Co. ,/ Analog computers I 3 American Hydromath Corp. / Analog computers I 3 American Machine and Foundry, Electronics Div. / Analog computers I 3 Analogue Controls Inc. / Analog computers / 3 Arma Corp. / Analog computers, basic weapon and control systems / 3 ATLAS PRECISION PRODUCTS CO., 3801 Castor Ave. , Philadelphia 24, Pa. / Electro Mechanical Analog Computers / design and manufacture of mechanical computers as used on fire control, radar, and aircraft / - / 3 Audio Instrument Co., Inc. / electrOnic, mechanical, and optical analog computers / 3 THE AUSTIN CO., 76 9th Ave., New York 11, N. Y. I "Computrols" / DESCR: computers for control; Emgineered for special purposes; built from standard component sub-assemblies / USE: for industrial control applications, machine tools, etc. / 3 Avion Div. of American Car & Foundry Industries, Inc. I Analog computing machinery / 3 Avion Div. of ACF, Erco Div. / Analog computers / 3 Avion Instrument Co. / analog computing machinery /3 Baird Atomic Co. i analog devices / 3 BENDIX AVIA TION CORP., Research Laboratories Div., P. O. Box 5115, Detroit 35, Mich. I Analog computers I DESCR: develop and manufacture special purpose standard and subminiature analog and digital computing systems and related equipment for both industrial and military use: navigation, guidance and control, data reduction, dynamic data plotting, flight simulation, nuclear reactor simulation, numerically controlled machine tools, meteorological, process control, data logging I USE: control, measurement, data handling, inventory, analysis / $20, 000 to $1, 000, 000 / 3 Benson-Lehner Corp. / automatic and semi-automatic 3 Buyers' Guile devices for computing, data analyzing, data reduction, optical measuring, guided missile analysis, etc. / 3 BERKELEY DIVISION, BECKMAN INSTRUMENTS, INC., 2200 Wright Ave., Richmond, Calif. / EASE ;Electronic Analog Simulating Equipment / DESCR: analog computers ranging from standard units to completely automatic punched tape or punched card set-up systems with automatic scanning and printed read-out / USE: simulation of actual physical systems - provide solutions for mathematical expressions or representation / - / 3 Boeing Airplane Co., Industrial Products Div. - Electronic Analog Computer transferred to Western Electronic Supply Co., which see /3 BURLINGAME ASSOCIATES, LTD., 103 Lafayette St., New York 13, N. Y. / Analog computers and computer accessories / $500 to $10,000 / 3 Cedar Engineering, Inc. / Analog computers / 3 Century Engineers, Inc. / Analog computers / 3 Computing Company of America / Analog computers, specialized computers and accessories / 3 Daystrom Instrument Co. / Analog computers / 3 DONNER SCIENTIFIC CO., 888 Galindo St., Concord, Calif. / Analog computers, information delay generators, function generators, function multipliers, etc. / DESCR: simple desk-top (Model 3000) all the way up to facilities (60 or more operational amplifiers) with all necessary auxiliaries / USE: by engineers, mathematicians, educators, etc. / $1,245 to $100, 000 / 3 Edin Co., Inc. / Frequency Spectrum Analyzer Model 8135 / DESCR: performs complete continuous component frequency analysis of any complex wave form, reading out all the frequencies and their energy contents in the form of a bar graph / USE: to analyze electronic computer data for complex component frequency and energy contents / $5, 000 / 3 EECO Production Co. / Analog computer / DESCR: desk type analog computer / USE: data handling, etc / $7500/3 ELECTRONIC ASSOCIATES, INC.; Long Branch, N. J. / Analog Computer Group 16-31R / DESCR: a 20 amplifier, self-contained unit; to accomplish enlargement of the system, standard component groups including operational amplifiers,. resolverst servo multipliers, diode function generators, electronic multiplie'rs, and other associated input and output equipment / USE: in computation, simulation, testing / $15, 000 / 3 ELECTRONIC ASSOCIATES, INC., *a / Analog Computer Group 16-131R / DESCR: A self-contained, general purpose analog cOI.I1puter containing 80 attenuators, 20 operational amplifiers (8 combination integrator-summing, 12 summing) all-metal color-coded patch panel, VTVM, provision for 3 servo multipliers and digital voltmeter, thermostatically controlled oven for computing networks and passive elements, control overload alarm, terminal trunks for slaving of remote equipment, and assorted patch cords and bottle plugs, push button system monitor, problem check, automatic hold, and an auxiliary bay for IJUS- -45 - 3 tomized equipment additions. Contains facility for Automatic Extended Readout / USE: computation, simulation, systems analysis, testing / 3 Electronic' Control Systems, Inc. / special purpose computers for military and industrial use, meeting customerts exact requirements / 3 Electronic Control Systems, Inc. / statistical analyzer / DESCR: special purpose computer / USE: quality control, product certification, component ~valuation, inspection / $9, 000 to $11, 000 / 3 Emerson Radio & Phonograph Corp. / Analog computers /3 Farrand Optical Co. / Analog computers / 3 Feedback Controls, Inc. / Analog computers / 3 THE FOXBORO CO., Foxboro, Mass. / Analog computers /3 Gen.eral Automatics, Inc. / Analog computers / 3 Goodyear Aircraft Corp. / GEDA Analog Computing Equipment / 3 GPS Instrument Co., Inc. / Analog computers / 3 Hall-Scott, Inc . ./ Analog computers / 3 HUGHES RESEARCH AND DEVELOPMENT LABS. , Culver City, Calif. / small, automatic electronic analog computers for airborne use / 3 Industrial Electronics of Canada, Ltd. / Analog computers / 3 Industrial Research Co. / Analog computers / 3 Industrial Test Equipment Co. / Analog computers / 3 Instron Engineering Corp. / Analog computers / 3 Instrument Components, Inc. / Analog computers / 3 Instrument Development Labs., Inc. / Analog (color difference) computers / 3 ITE Circuit Breaker Co. / Analog computers / 3 Bill Jack Scientific Instrument Co. / airborne analog computers for "Recon" systems, aerial cameras / 3 Kearfott Co., Inc. / Analog computers / 3 George F. Kelk, Ltd., Ontario / specialized analog computers / 3 Kelt Corp. / Analog computers / 3 Walter Kidde & Co. / Analog computers / 3 Leemath, Inc. / Analog computers / ~ Librascope, Inc. / mechanical and electrical computers computing and controlling equipment for military and industrial applications / 3 LINK AVIA TION, INC., Binghamton, N. Y. / Link Aerolog Performance Computer / DESCR: a specialized computer for solving the classical steady-state equations of flight; accurately calculates rates of climb, maximum speeds, lift coefficients, and climb angles based on input variables / USE: by aircraft design groups, does not require specialists to operate / $17,500/3 The W. L. Maxson Corp. / analog computers for fire control, navigation, etc. / 3 Mid-Century Instrumatic Corp. / Analog computers / 3 William Miller Instruments, Inc. / Milac analog computer /3 Norden-Ketay Corp. / analog computers for fire control systems, aviation ordnance, etc. / 3 Otis Elevator Co. / Analog computers / 3 The Perkin-Elmer Corp. / Analog computers / 3 GEORGE A. PHILBRICK RESEARCHES, INC., Computers and Automation 3 3 / Analog computers / 3, Waldorf Instrument Corp. / Analog computers / 3 Wallind-Pierce Corp. / ,Analog computers / 3 Weber Electronics / Weber Analog Computer / DESCn: compact, desk-like console, requiring no auxiliary units / USE: in business and industry as departmenttal equipment. Capable of solving highly complex problems: Operates on both real and repetitive tiD),e. / $6000 -$8000 / 3 Weems System of Navigation / Automatic navigation systems /3 West Coast Electronics Co. / Analog computers / 3 Westinghouse Electric Corp., Analytical Dept. / Analog computers / 3 Westinghouse Air Brake Co., Div of Union Switch & Signal/Analog computers / 3 We stronics, Inc. / Analog computers / 3 230 Congress St., Boston 10, Mass. / Electronic analog computers / DESCR: research, design, and manufacture of analog computers, ranging from operational amplifiers and power supplies to complete computing facilitie s, modular construction / USE: measurement and synthesis through voltages / components from $24 to $1750; complete installations $1015 to $60,000 / 3 PHILIPS ELECTRONICS, INC., Instruments Div., 750 So. Fulton Ave., Mount Vernon, N. Y. / Analog computers / - / USE: with X-ray Diffractometer and X-ray Spectrograph / - / 3 The Rand Corp. / Analog computers / 3 Reeves Instrument Corp. / "REAC" electronic analog computers / 3 The Reflectone Corp. / Analog computers / 3 REMINGTON RAND UNIVAC DIV., SPERRY RAND CORP., 315 4th Ave., New York 10, N. Y. / Analog computers; special purpose computers / 3 Republic Aviation / Analog technique / 3 Research Inc. / Analog computers / 3 Sanborn Co. / Analog computer systems / 3 Seismograph Service Corp. / Analog computers I 3 Servo Corp. of America / Servomation Building Blocks / DESCR: Electro-mechanical general purpose analog computer; extremely accurate; results stated in mechanical output for application in control systems; various component combinations apply to a wide range of industrial, design, educational, and telemetering requirements / USE: computer compO,nents, servomechanisms, control equipment / I 4. ANALOG-TO-DIGITAL CONVERTERS Ahrendt Instrument Co. / Analog-to-digital converters /4 Airborne Instruments Lab., Inc. / Analog-to-digital cOllverters / 4 Airflyte ElectrOnics Co. / Analog-to-digital converters /4 -/3 Servomechanisms, Inc. / CA 500 Mach Computer / 3 Servomechanisms, Inc. / see also "Data Processing Machines" / 3 Short Bros. & Harland Ltd. / The Short General Purpose Analogue Computer / DESCR: a flexible general purpose instrument incorporating switched components and a set-up panel which obviates the need for the normal loose wiring; repetitive and continuous solution; high-gain, high band width amplifiers of unique design; automatic drift correction / USE: solution of simultaneous differential equations both linear and non-linear. Simultation of control systems with dis-continuities and dead zone conditions. As a real time simulator with external equipment / price available on application / 3 Soci~t€ d'Electronique et d'Automatisme, France / analog computers and components; analog computer OME-12/3 Southwestern Industrial Electronics Co., Inc. / SIE Analog Computer / DESCR: performs multiplication, division, addition, subtraction, logarithms, and roots / USE: especially, the solving'of simultaneous non-linear algebraic equations; also particularly fixed-program unattended real-time operation / $1000 and up / 3 Standard Electric Time Co. / Analog computers / 3 Sterling Precision Corp. / Analog computers / 3 Sunvic Controls, Ltd., England / Analog computers / 3 Ultrasonic Corp. / Analog computers / 3 p-. S. Naval Research Laboratory, Washington 25, D. C. -46 - American Electronics Co. / Analog-to-digital converters / 4 American Machine & Foundry, Electronics Div. / Analog-to-digital converter; digital servo / 4 Analogue Controls Inc. / Analog-to-digital converters /4 Applied Electronics Corp. / Analog-to-digital converter / 4 Assembly Products, Inc., / LIAD, analog-to-digital converter and multi-contact meter-relay / 4 Atomic Instrument Co. / Model 975 Analog-to-Digital Converter, "Atomicon" / 4 THE AUSTIN CO., 76 9th Ave., New York, N. Y. / Analog7':to-digital converter / DESCR:' quantizer' of shaft' position provides instantaneous analog-todigital conversion; direct coupling eliminates servo; accuracy is independent of shaft acceleration; resolution to 1 part in 5000 / USE: in data handling systems / $990 with control unit / 4 Avion-Division-Alexandria (formerly ACF ElectrOnics) Div. of ACF Industries" Inc. / ACF Model 1051 Voltage Encoder / 4 BECKMAN INSTRUMENTS, INC., SYSTEMS DIVISION, 325 N. Muller Ave., Anaheim, Calif. Analog-todigital converters -- see "Data Processing Machinery /4 Bendix Aviation Corp., Pacific Division / Analog-todigital converters / 4 BENDIX COMPUTER DIV., BENDIX AVIA TION CORP. , 5730 Arbor Vitae St., Los Angeles 45, Calif. / Analog-to-digital converters / DESCR: electronic converting equipment for control, data reduction, and digital computer techniques; designs originated to meet special requirements / - / 4 Buyers' Guide 4 BUHLINGAME ASSOCIATES, LTD., 103 Lafayette St., New York 13, N. Y. I Analog-to-digital converters 14 Century Engineers, Inc. I Analog-to-digital converters 14 COLEMAN ENGINEERING CO., 6040 W. Jefferson Blvd., Los Angeles 16, Calif. I Digitizers I DESCR: Coleman Digitizers convert shaft rotations into discrete settings of electrical contacts for operation of electric printers, electric typewriters, preparation of mM punched cards, Flexowriter Tape, etc. I USE: convert rotating shaft positions into digits I about $500 and up I 4 Consolidated Avionics Corp. I Analog-to-digital converters I 4 Corbin Corp. I Analog-to-digital converters I 4 Electro Instruments, Inc. I analog-to-digital converters I 4 Electro-Mechanical Research, Inc. I Analog-to-digital converters I 4 Electro-Mec Laboratory, Inc. I Analog-to-digital converters I 4 Electro-Miniatures Corp. I Analog-to-digital converters I 4 Electronic Computer Company I Analog-to-digital converter for data reduction systems and general voltage measurement applications. I 4 Engineered Electronics Company I Decimal Counter, Plug-in I DESCR: decimal counter, with indicators, operating to 1 Mc. Plate output leads available for external use. Special scaler available for counting N/16, N/10, or NIB with plate outputs only I USE: for use in computer and control systems I 100 Kc unit $66 -- 1 Mc Unit & Special Scaler about $200 I 4 EPSCO, INC., 588 Commonwealth Ave., Boston, Mass. I DATRAC Model B I DESCR: High speed reversible voltagi-to-digital converter. Straight binary'or binary coded decimal output in both serial pulse and semi-static parallel form. No operator adjustments. I USE: Automatic control; data reduction for visual or computer processing I - I 4 Fairchild Engine & Airplane Corp. I Analog-to-digita1 converters I 4 F1SCHER & PORTER CO., 330"'Warminster Rd., Hatboro, Pa. I "Digi-Coder" I DESCR: ;electro-mechanical high-speed analog-to-digital converter I USE: takes in shaft position representing flow-temperature, pressure, level, voltage, angular or linear position, and other variables, and puts out digital value I 4 Franklin Electronics, Inc. I Analog-to-digita1 converters I 4 General Devices, Inc. I Analog-to-digital converters I 4 Genisco, Inc. I Analog-digital converter I 4 G. M. Giannini & Co., Inc. i Digital Data Recording Systems, Analog-to-digital converters I Servomechanisms to convert physical phenomena to shaft rota· tion; shaft position digitizer with sliding contacts; storage and sequencing controls I USE: to record data from wind tunnels, engine tests, radar, industrial processes, on punched cards, punched tape, or printed record I $800 to $50, 000 I 4 INDUSTRIAL NUCLEONICS CORP., 1205 ChesaDeake -47 - 4 Ave., Columbus, Ohio I Analog-to-digital converters 14 Industrial Research Lab., Div. of Aeronca I Analogto-digital converters I 4 Industrial Development Labs., Inc. I Analog-to-digital converters I 4 Kearfott Co., Inc. I Analog-to-digita1 converter I 4 Leemath, Inc. I Analog-to-digital converters I 4 MacLeod & Hanopo1, Inc. I Analog-to-digital converters I 4 The Magnavox Co. I Analog-to-digital converters I 4 The NeWton Co. I Shaft-to-digital converters I 4 Non-Linear Systems, Inc. I Digital Voltmeters and Ohmmeters I high accuracy digital measuring and conversion equipment I USE: precision measurement and display in laboratory, inspection and reading analog computer inputs and outputs I $44 to $8500 I 4 Norden-Ketay Corp. I Analog-to-digital converter I 4 Oerlikon Tool & Arms Corp. of America I Analog-todigital converters I 4 PACKARD-BELL ELECTRONICS CORP., 12333 W. Olympic Blvd., Los Angeles 64, Calif. I Analogto-digital converters I 4 POTTER INSTRUMENT CO., INC., 115 Cutter Mill Rd. , Great Neck, N. Y. I Analog-to-digital converter I 4 RADIATION, INC., P. O. Box 37, Melbourne, Fla. I Analog-to-digital converters / 4 Radiation Instrument Devel. Lab. I Ana10g-to-digital converters I 4 Streeter-Amet Co. I Analog-to-digital converters I 4 Stromberg-Car1son-San Diego I Analog-to-digital converter I 4 Sunvic Controls, Ltd., England I Analog-to-digital converters I 4 Taller & Cooper, Inc., I Analog-to-digita1 converter I DESCR: translates output or test data into digital form; receives data in the form of shaft rotations; the converter" can control a card punch system or typewriter I USE: may be hooked up to potentiometers I $450 I 4 Veeder-Root, Inc. I Ana10g-to-digital converters -counters, mechanical and electrical / 4 Wallind-Pierce Corp. I Analog-to-digita1 converters I 4 Westronics, Inc. I Analog-to-digita1 converters I 4 Wright Engineering Co. I Analog-to-digita1 converters I 4 5. ARITHMETICAL CmCUlTS (FOR DIGITAL COMPUTERS) Brush Electronics Co. / Digital decade counter I 5 Computer Control Co., Inc. I 3C-PAC Series V Universal Logical Gating Package I DESCR: a package operating at a 1 megacycle rate I USE: PACs can be used as flip-flops, serial or parallel adders, subtractors, shift registers, comparators, code converters, logi": cal switching networks, etc. / - I 5 Engineered Electronics Company I Computer Plug-in circuitry I DESCR: electronic DC-coupled plug-in circuits including flip-flops, shift register elements, pulse mixers and amplifiers, neon drivers, dixie logic, onedigit adder, one-digit subtractor, etc. Standard signal q Computers and Automation level is 20 volts. Conservatively rated, etched cir": cult construction, :compact design, compatible accessory items. Transistorized plug-ins under development / USE: for design and assembly of computertype systems / about $30 -- $150 per plug-in / 5 MONROE CALCULATING MACHINE CO. -- see Computer Components. / 5 Philco Corp., Government & Industrial Div. -- see "Digital Computers" / 5 VICTOR ADDING MACmNE CO., 3900 N. Rockwell st. , Chicago 18, illinois / Add-Tractor / DESCR: a nine's complementing 100 KC electronic decimal counter providing a fast means of addition or subtraction / USE: Unitary or decinlal input. Complements in 10 microseconds / $95. / 5 THE WALKIRT CO., 141 West Hazel st., Inglewood 3, Calif. / Plug-in pulse circuit packages / DESCR: generally single-tube and/or transistor circuit stages, encapsulated in resin, plug-in form; complete counters, multivibrators, amplifiers, gates, triggers, pulse generators, etc. / USE: as a complete circuit stage in digital computing equipment / $8 to $20 per stage / 5 6. AUTOMATIC CONTROL EQUIPMENT Askania Regulator Co. / Hydraulic and electronic automatic control equipment / 6 THE AUSTIN CO., Special Devices Division, 76 9th Ave. , New York 11, N. Y. / Automatic Controls / systems and devices for automatic control in commerce and industry; analog, digital, data-handling, servo, electronic, electromechanical; shaft position indicators and systems / 6 Automatic Signal Div., Eastern Industries, Inc. / Automatic volume density traffic controllers / 6 Automation Engineering Laboratory / Automated units or systems / 6 Autron Engineering, Inc. / Automatic control equipment / DESCR: high-speed electro-mechanical digital counter /6 Avion Division of American Car and Foundry Industries, Inc. / Automatic control machinery / 6 Avion Instrument Co. / Automatic control machinery / 6 Barnes Engineering Co. / Automatic control equipment / 6 Bell Punch Co., Ltd., England / Automatic control equipment /6 BENDIX AVIA TION CORP., RESEARCH LABORATORIES DIVISION, P. O. Box 5115, Detroit 35, Mich. / Automatic control equipment -- see "Analog Computers" / 6 BENDIX COMPUTER DIV., BENDIX AVIA TION CORP. , 5630 Arbor Vitae St., Los Angeles 45, Calif. / Electronic systems for control functions as related to digital computer techniques; computer controlled devices / - / 6 Bergen Laboratories / automatic control equipment / 6 Bowser, Inc. / Electrofile, Xacto, Xactonic; liquid controls, etc. / 6 THE BRISTOL CO., Waterbury, Conn. / Instruments for automatic control and automation / DESCR: auto- 6 matic recording, indicating, controlling, and telemetering instruments and components. Electronic recording potentiometers; Instruments for automatic control and automation; Choppers and socket screws for computers / - / 6 Concord Control Inc. / numerically controlled milling machine; industrial prototype numerical control system; numerical control systems for fully automatic machining of aircraft parts / 6 DATAMATIC CORP., 151 Needham St., Newton Highlands 61, Mass. / Machine control / 6 Eagle Signal Corp. / Automatic control equipment / 6 Thomas A. Edison, Inc., Instrument Div. / Automatic control components / 6 ELECTRONIC ASSOCIATES, INC., Long Branch, N. J. / Automatic process control / 6 Electronic Control Systems, Inc. / Industrial process and machine control systems; automatic test eqUipment /6 Engineered Electronics Company / Hermetically sealed stepping switches / DESCR: stepping switches packaged in oil-bath, hermetically sealed enclosure. Special assembly techniques available for reliable switching at low signal levels. Connectors available: Solder terminals plug-in connectors / USE: for long-life applications of stepping switches / depends upon switch specified, plating desired, etc. Example: $265/6 EPSCO, INC., 588 Commonwealth Ave., Boston 15, Mass. / Automatic control systems / DESCR: Equipment and systems for dynamic weighing (as conveyor belts, etc.); Process mix control; production count control. Systems employing operational digital techniques. / USE: throughout heavy and light industry / Rental available / 6 Farrand Controls, Inc. / Automatic control equipment / 6 General Controls, 802 Allen Ave., Glendale 1, Calif. / Automatic controls (pressure, temperature, level, flow) /6 HAMMARLUND MFG. COMPANY, INC., 460 West 34 St., New York 1, N. Y. / Centralized Operations Control (C. O. C. ) / DESCR: C. O. C. is a system of remote control employing audio tones for purpose of remote supervisory control and telemetering over speech grade telephone lines or communication links. The equipment is compatible with most systems of instrumentation. / USE: for remote supervisory control and telemetering / Basic units approx. $250 -others, under $1000 to upper 5 figures / 6 Hillyer Instrument Co. / Automatic machine controls / 6 INDUSTRIAL NUCLEONICS CORP., 1205 Chesapeake Ave., Columbus, Ohio / "AccuRay" process control systems / 6 International Telephone and Telegraph Corp., / Equipment for automatic control of repetitive processes, clerical or industrial work / 6, Bill Jack Scientific Instrument Co. / Control systems / DESCR: control systems for· aerial reconnaissance cameras employing special purpose analog computers, positional and velocity servo mechanisms, and intervalometers / USE: in military aircraft / $5, 000 to $30, 000, depending upon complexity / 6 (cont'd on page 57) . - 48- Part 3 of THE COMPUTER DIRECTORY AND BUYERS'GUIDE, 1957 ~he A June, 1957 issue of Computers and Automation PICTORIAL INTRODUCTION TO COMPUTERS Most of the time computers are not photogenic - not "suitable for being photographed for artistic purposes", as the dictionary defines "photogenic". Why not? Because taking a picture of a computer to show how it is processing information is like taking a picture of a man's forehead to show how he is t1)inking: it shows almost nothing. In other words, if you would like to "see how a computer works", you need to look at circuit diagrams and trace pulses of information through them. And since a computer's speed is fantastic, you also need to use instruments (an oscilloscope for example) which will picture the pulses slowed down to human speeds. But we have now collected some computer pictures which can answer some questions, such as: What does a computer look like? What does a magnetic drum look like? and more besides. Some of these pictures we have included here in "A Pictorial Introduction to Computers". We plan to publish more in subsequent issues of "Computers and Automation". If any of our readers have good pictures answering questions of the type "What does a ....•. look like? It, we shall be very glad to consider them for publication. WHAT DOES A COMPUTING CENTER LOOK UKE? Here is a picture of a computing center at the Ramo-Wooldridge Corporation in Los Angeles. Its main purpose is the reduction of data received by telemetering from experiments with flying aircraft, rockets, missiles, etc. This view shows a part of a circular array of electronic equipment, which has been assembled into a system for converting telemetered data rapidly into forms suitable for further analysis and study in detail. - 49- WHAT DOES A COMPUTER LOOK LIKE? Here is a picture of a computer - an electronic analog computer known as "Computer Group 16-13IR", made by Electronic Associates, Long Branch, N. J. This is a general purpose computer for mathematical and engineering problems to be solved by analog methods and using electronic signals. The capacity of the machine may be increased by cables connecting it to more equipment. Also, the machine may receive input translated automatically from digital into analog form, so that nume~ical coefficients may be given easily to the machine and mathematical functions may be easily generated . .. (I;it~ _/II~~" JI,a,a.. , I i I; } 'I " " • It..'••"- lit. :-'%; lit - 50 - ~-, - lIt ,:=--1_ _ ~ I. • ,/ " / WHAT DOES AN INPUT DEVICE LOOK LIKE? Here is a picture of an example of an input device - a fast photoelectric reader of punched paper tape, made by Potter Instrument Co., Great Neck, N. Y. It is modeled on the fast magnetic tape reader made by the same company. Note the small arm-like mechanisms for taking up slack in the tape, which provide for very much faster starting and stopping than if the tape reels alone had to be accelerated or decelerated. ,i ~)' CD Q)~ ~ " 0 ", Q . e:f .~~ ~ . J 9)'1 ~. C CD .t' li~ '« "'''"> • ! - 51 - WHAT DOES A LITTLE MAGNETIC DRUM LOOK LIKE? A magnetic drum stores information, in the form of yeses and noes (binary digits) represented by magnetically polarizeq spots. Here is a picture of a miniature magnetic drum, which can store over 12, 000 binary digits of information. It was developed by BJ Electronics, Borg-Warner Corp., 3300 Newport Blvd., Santa Ana, Calif. The aluminum drum with magnetic surface measures 3-1/2 inches diameter and contains 12 information channels plus clock and checking channels. Each channel is seven hundredths of an inch in width, and can store 1024 bits. The drum is driven by a belt at speeds varying up to 15, 000 rpm. Access time is apprOximately 1. 25 milliseconds. The outside case is 6 inches diameter. WHAT DOES A BIG MAGNETIC DRUM LOOK LIKE? Here is a picture of a magnetic drum which will store millions of binary digits of information. This drum is part of a system of reporting inventory quantity (on hand and on order) of boots and shoes for 3000 styles and colors, with an average of 10 sizes per style, and up to 4 decimal digits of inventory information for each combination of style and size. The drum is 20 inches in diameter, 30 inches long, and spins at 1300 revolutions per minute. It is partially hidden beneath wires which lead to the magnetic heads that "read" and ''write'' information on the drum. It is the heart of an inventory control system manufactured by the Teleregister Co. for the B. F. Goodrich and Hood Rubber Company in Watertown, Mass. - 52 - WHAT DOES PROGRAMMING LOOK LIKE? Most of the time it is not possible to see programming, since it consists of a long series of instructions stored inside the machine, quite often in the form of invisible polarized spots on a magnetic surface. But in the case of the E10l "desk size" automatic computer (made py ElectroData Division of Burroughs Corporation, Pasadena, Calif.), the programming is given to the machine in the form of arrays of pins in a plugboard. The pattern of pins in the plugboard is a good picture of the selection among many possibilities which a program conveys to a computer. - 53 - WHAT DOES A VISUAL OUTPUT LOOK LIKE? A "visual output" is a device which displays answers or results visually before human eyes. One kind which is new, important, interesting, and inexpensive is a glow tube called Nixie, made by Burroughs Electronic Tube Division, Plainfield, N. J. It converts anyone of ten electric signals directly into anyone of ten digits 0 to 9. As the first picture shows, a wire frame inside the tube outlines the possible digits; then when an electric potential is put on anyone of the wires a' glow (like a neon tube glow) results, brightly illuminating the space around the wire. In the second picture, a 5 is glowing. The top of the tube is about the size of a quarter. View from the Side, not glowing View from the top, glowing Another kind of visual output is called an X-Y plotter. Above is a machine which automatically plots a curve on graph paper with two rectangular coordinate axes, the X-axis and the Y-axis. Pictured above is an example of such a machine, a Type "A" X-Y Plotter, made by Librascope, Glendale, Calif. It can graph a curve swiftly and automatically, taking in information in decimal or binary notation through a converter from punched cards or punched tape. -54- WHAT DOES A SEMICONDUCTOR LOOK LIKE? Here is a picture of a great number of semiconductors, mounted together one after another in a long strip, like bullets in a belt for a machine gun. The special "machine gun" shown here "staples" the semiconductors into printed circuit assemblies, thus eliminating the hand assembly formerly required, and greatly speeding the process. The semiconductors are made by Hughes.-Aircraft, Culver City, Calif., and the machine for inserting them was adapted by engineers of Hughes Aircraft. - 55 - WHAT DOES A MAGNETIC TAPE REEL LOOK LIKE? Here is a picture of a reel for holding magnetic tape, with a curved groove or "C" slot in the hub for easy threading of tape and self locking. It is made by Audio Devices, Inc., New York, N. Y. WHAT DOES A MAGNETIC TAPE FILE LOOK LIKE? Here is a picture of a small mobile cabinet made by Remington Rand, New York, which will store many reels of magnetic tape and move them from place to place easily. - 56 - BUYERS' GUIDE (cont'd from page 48) f) Buyers' Guide Kaiser Metal Products, Inc. / Automatic electronic controls for industrial applications / 6 A. KIMBALL CO., 444 4th Ave., New York 13, N. Y. see Punch Card Machines / 6 Leeds & Northrup / Automatic control equipment / DESCR: Null balance electronic instruments (indicating, recording, signalling, controlling) their primary elements and final control devices / USE: measurement and control of industrial and laboratory processes / $600 and up / 6 Librascope, Inc. / Research, development, and manufacturing of analog and digital control equipment and systems for industry and government / 6 Litton Industries / Automatic flight controls / 6 MAGN.ETIC RESEARCH CORP., Hawthorne, Callf~ / Magnetic Servo Amplifier / DESCR: completely magnetic servo amplifier in ratings up to 5000 watts offering performances including one cycle response (,16 milliseconds) / $50 to $3000 / 6 The W. L. Maxson Corp. / Automatic control machinery /6 Minneapolis- Honeywell Regulator Co. / Automatic controllers. Brown Instruments. Recording am indicating instruments and control equipment / 6 MONROE CALCULATING MACHINE, CO. see "Computer Components" / 6 Norden-Ketay Corp. / Varieties of control devices; resistance to humidity, corrosion, high temperature, etc; ma:ny kinds of airborne instruments / 6 Notifier Manufacturing Co. / Alarm and Signal Equipment / PANELLIT, INC., 7401 N. Hamlin Ave., Skokie, TIL / Equipment for automatic control, coordinated and graphic control panels for process variables / 6 J. B. Rea Co., Inc. / Automatic control systems / 6 Servo Corp. of America / Servotherm Infrared Radiation Pyrometer / DESCR: designed for the remote measurement of temperatures where the target cannot be physically contacted and for temperature measurement and control of processes or parts in motion / USE: measurement and control of continuous process products, assembly line products, rotating members, hot spots / $3850 to $4875/ 6 Servo Corp. of America / Servomechanisms. Automatic Controls. Analysis and synthesis for controls manufacturers. Temperature controls by infra-red radiation. Industrial controls. • Servo components ann test equipment / 6 Servomechanisms, Inc. / Automatic electronic and electromechanical control systems and components / 6 Sperry Rand Corp., Sperry Gyroscope Div. / Ordnance: fire-control equipment / 6 Strand Engineering Co. / Automatic control equipment / Design and development services. Special equipment and systems / 6 Taylor Instrument Co. / Automatic controllers / 6 Technitrol Engineering Co. / Control equipment / 6 TELEMETER MAGNETICS, INC., 2245 Pontius Ave. Los Angeles 64, Calif. - see "Magnetic Storage Systems" / 6 The Teller Co. / Automatic control equipment / 6 e - 57 - 6 Jervis B. Webb Co. / Conveyer engineering and man~ facturing. Automatic control machinery, automatic materials handling machinery / 6 7. CAPACITORS (COMPUTER TYPES) Aerovox Corp. / Capacitors / 7 AMP, Inc., Chemical & Dielectric Div. / Capacitors /7 Astron Corp. / Capacitors / 7 Axel Bros., Inc., Electronics Div. / Capacitors / 7 Centralab, Div. of Globe- Union, Inc. / Capacitors / 7 Condenser Products Co. / Capacitors for computer applications / 7 Cornell-Dubilier Electric Corp. / Test equipment capacitors / 7 Corning Glass Works / Glass capacitors, delay lines /7 The Electro Motive Mfg. Co., Inc. / Capacitors / 7 Electron Products Inc. / Capacitors / 7 Fansteel Metallurgical Corp. / Capacitors / 7 Film Capacitors Inc. / Capacitors / 7 General Electric Co., Schenectady, N. Y. / Capacitors /7 . General Instrument Corp., Newark, N. J. / Capacitors /7 Good-All Electric Mfg. Co. / Capacitors / 7 Hopkins Engineering Co. / Capacitors / 7 JFD Electronics Corp. / Capacitors / 7 P. R. Mallory & Co., Inc. / CapaCitors, computer grades / 7 Natvar Corp. / Capacitors / 7 Ohmite Manufacturing Co. / Capacitors (computer types - Subminiature Tantalum type /7 The Potter Co. / CapaCitors / 7 Precision Capacitors, Inc. / Capacitors / 7 Pyramid Instrument Corp. / Capacitors / 7 Radio Condenser Co. / Capacitors / 7 Radio Metals Corp. / Capacitors / 7 Sangamo Electric Co. / Capacitors / 7 SCHWEBER ELECTRONICS, 122 Herricks Road, Mineola, N. Y. / Capacitors / 7 Solar Mfg. Co. / Capacitors / 7 Southern Electronics Corp. / Precision polystyrene capacitors / 7 Southwestern Industrial Electronics Co., Inc. / Capacitors / 7 ~ Sprague Electric' Co. / Capacitors / 7 Tobe Deutschmann Corp. / Capacitors / 7 U. S. Electronics Development Corp. / Capacitors / 7 Vitramon, Inc. / Capacitors / 7 8. CARD-TO-TAPE CONVERTERS ADDRESSOGRAPH-MULTIGRAPH CORP., 1200 Babbitt Rd., Cleveland 17, Ohio / Card-to-Magnetic Computers and Automation 8 Tape Converter / DESCR: reads IBM or Remington Rand punched cards at 600 cards per minute, adds group data not contained in punched cards, records selected messages on from 2 to 12 tape records, and outfiles preselected cards / 8 General Cybernetics Corp. / Card-to-tape converter (Model 155 Cybertac System) / 8 INTERNATIONAL BUSINESS MACHINES CORP., '590 Madison Ave., New York 22, N. Y. / IBM 63 CardControlled Tape Punch / DESCR: performs the' function of reading alphabetical and numerical in- )," formation in IBM punched cards and of perforating' 5-channel telegraphic tape with that data. The machine consists of a card reading unit and a tape punching unit / USE: the 5-channel tape may be used to transmit data automatically by commercial wire service / monthly rental $75; selling price $3700/8 REMINGTON RAND UNIVAC DIV., SPERRY RAND CORP., 315 4th Ave., New York 10, N. Y. / 90column tabulating card-to-tape converter Type 318 DESCR: c~nverts information from 90-column punched cards to 5 channel paper tapes, tape,s perforated at 900 cards per minute / USE: card 'to tape conversion / rental, $110 per month; sale, $8500; prices subject to tax. / 8 Technitrol Engineering Co. / Card-to-Tape Converters / $45, 000 up / 8 9. COMPUTER COMPONENTS (See Also SPECIFIC TYPES)' ALADDIN ELECTRONICS, 703 Murfreesboro Rd., Nashville, Tenn. / Packaged Blocking Oscillator / DESCR: A miniaturized unit consisting of an encapsulated blocking oscillator circuit, ready to plug in / USE: as a plug-in or soldered-in component which can be either "free run" or externally pulsed / price depends upon performance specifications required / 9 Alden Products Co. / Components / 9 Allgemeine Elektricitaets-Gesellschaft, Germany / Semi-conductors / 9 American Electronic Mfg., Inc., Instruments Div. of American Electronics Inc. / Resclvers, servomotortachometers, resolver amplifiers / 9 AMERICAN ELECTRONICS, INC., 655 West Washington Blvd., Los Angeles, Calif. / Components for analog and digital computers / 9 AMERICAN ELECTRONICS, INC., *a / Servomechanisms / 9 AMP, Inc. / Capacitors, taper pins, etc. / 9 Amperex Electronic Corp. / Computer components: electron tubes, transistors, and crystal diodes. Ferrites ("Ferroxcube"). Semiconductors. Also application engineering service for these products / 9 Arma Corp. / Analog computer components including resolvers, induction gemrators, etc. / 9 Avion Div. of American Car & Foundry Industries, Inc. / Amplifiers, electronic choppers, test equip- 58 - 9 ment, servomechanisms / 9 Avion Instrument Co. / Amplifiers, electronic choppers, test equipment, servomechanisms, etc. / 9 Bendix Aviation Corp., Pacific Div. / Computer components / 9 Berkshire Laboratories / Computer components / 9 Bowmar Instrument Corp. / mechanical computer components / 9 THE BRISTOL CO., Waterbury 20, Conn. / Choppers and socket screws for computers - see "Automatic Control Equipment" / 9 Brush Electronics Co. / Computer components, recording analyzers, (,~~cades, tape transports / 9 Burndy Corp., Omaton Div. / Electronic components and related hand, hydraulic, pneumatic, and automatic tooling / 9 Cambridge Thermionic Corp. / Components for computers-i,9 .' ~, Canoga Cprp·.. ' I Computer components / 9 Cinch Manufacturing Corp. / Electronic components / 9 Computer Engineering AssocIates, Inc. / computer components / 9 Consolidated Diesel Electric Corp. / Computer com-· ponents / 9 L. L. Constantin & Co. / Computer components / 9 Doelcam Corp. / Servomechanisms, amplifiers, etc. /9 EECO Production Co. / Package Circuits / DESCR: plug-in packed circuits, flip-flops, squaring circuits, cathode followers, gates, oscillators, etc.; custom packaging of special Circuits; stepping switches; diode logic; as used in Eeco desk type analog computer, Eeco wide band DC amplifiers, and other equipment / USE: in data handling, timing, and computing systems / plug-in's, $8 to $20, etc. / 9 ELECTRALAB,. INC., Industrial Center, Needham Heights 94, Mass. / Printed Circuits / DESCR: high quality printed circuits. Reliable through-hole plating incorporating the use of proven copper deposition processes, close tolerance fabrication and closely controlled processing applies to all production / USE: in computers: business machines, navigation 3:lld fire control sy~teI?s. In missiles: control and guidance systems. In computer components: plug-in packages / - / 9 Electro-Measurements, Inc. / Computer components / 9 Electronic Computer Div. of Underwood Corp. / pulse transformers, DC plug-:-in amplifiers, etc. / 9 Electro-Pulse, Inc. / Computer components / 9 ESC CORPORATION, 534 Bergen Blvd., Palisades Park, N. J. / Custom components only / DESCR: delay lines, pulse forming networks, pulse transformers, filters, etc., according to customer specifications; some types available from stock / USES: broad l / price determined by specifications; $7 and up'; 9, Fairchild Controls Corp., Components Div., Computer components / DESCR: precision potentiometers, linear and non-linear, single-turn, multi-turn and linear motion, wire wound and metal film; pressure transducers, accelerometers / USE: component parts in analog tlomputers / price varies by type 9 Buyers' Guide and specifications I 9 Freed Transformer Co., Ltd. I Components, miniature I 9 General Cybernetics Corp. I Model 154 Linear Motion Transducer I 9 Genisco, Inc. I Computer components of electromechanical type / 9 THE GEOTECHNICAL CORP., 3712 Haggar Drive, Dallas 9, Tex. / Special designs of digital and analog computer; automatic chart readers I 9 G. M. Giannini & Co., Laboratory Apparatus Div. / Computer components I 9 Guardian Electric Mfg. Co. I Computer components I 9 HALLER, RAYMOND & BROWN, INC., State College, Pa. I Computer components / DESCR: high quality logical elements I USE: in digital computing and logic applications I 9 Industrial Control Co. / Servo Multiplier, Model SL1053 I 9 Jacobs Instrument Co. I Pulse transformers, input and output devices, pulse burst generators I 9 LITTELFUSE, INC., 1865 Miner St., Des Plaines, TIL I Fuses and fuse holders I DESCR: small glass enclosed cartridge type fuses and related fuse holders I USE: circuit overload protection in computing and other equipment / $. 02 to $1. 50 each I 9 The Magnavox Co. / Computer components / 9 MAGNETIC RESEARCH CORP., Hawthorne, Calif. / Computer Power Supplies / DESCR: Stablvolt dual magnetically regulated DC power supplies, low regulation, fast response / 9 Magnetics Research, Inc. I magnetic components for analog and digital systems and computers I 9 MELLON INSTITUTE OF INDUSTRIAL RESEARCH, Multiple Fellowship on Computer Components, University of Pittsburgh, Pittsburgh 13, Pa. I High temperature modular printed circuit components I DESCR: The fabrication, on a single s ub sir ate , of film components, such as resistors, capacitors, inductors, and conducting lines. This is in opposition to an assembly of such components, and to the use of the term "printed circuit" to signify printed conductor of wiring I 9 METRON CORP., 8 Coryell St., Lambertville, N. J. I Computer components I 9 Mico Instrument Co. I toroid transformers, toroid inductors; ferrite core units for computers, etc. I 9 Mid-Century Instrumatic Corp. I electronic function generators, electronic multipliers, etc. I 9 MONROE CALCULATING MACHINE CO. Electronics Div., Morris Plains, N. J. I Monrobot Systems and Components I DESCR: general and special purpose digital systems and components ranging from magnetic read-record heads to complete industrial and military data processing systems / USE: systems which are used for data processing. Components are used in similar systems designed by others I from $15 I 9 The National Cash Register Co., Electronics Div., Calif. I Computer components, input-output devices / 9 Notifier Manufacturing Co. I Computer Circuits, switching circuits, memory and pulse storing devices, transistor devices I 9 Ortho Filer Corp. I Computer components I 9 - 59 - 9 Philco Corp. Government & Industrial Div. - see "Digital Computers" I 9 The Polymer Corp. of Pa. I Computer components / 9 RADIO CORP. OF AMERICA, Components Div., Camden, N. J. / Computer components / ferrite memory cores, transfluxors, custom-built memory planes, aperatured ferrite memory plates, relays I 9 RADIO CORP. OF AMERICA, ELECTRON TUBE DIVISION, 415 S. 5th St., Harrison, N. J. I Electron Tubes and Photosensitive Devices I DESCR: receiVing-type tubes, thyratrons, storage tubes, cathode ray tubes, camera tubes, photocells I USE: as components within equipment / 9 RADIO CORP. OF AMERICA, SEMICONDUCTOR DIVISION, Somerville, N. J. I Transistors and Semiconductor Diodes I USE: as components within equipment I 9 RAYTHEON MANUFACTURING CO., Receiving and Cathode Ray Tubes Operations Div., 55 Chapel St. , Newton 58, Mass. I Transistors, Semiconductor Diodes, Electron Tubes / DESCR: silicon and germanium transistors, silicon power diodes, miniature and subminiature tubes, low drain filament, subminiature and other special tube types / USE: computer and related uses I - I 9 SCHWEBER ELECTRONICS, 122 Herricks Road, Mineola, N. Y. I Distributor of computer components / DESCR: Connectors: miniaturized plug-in, coaxial and printed circuit types; tantalum capacitors, micro-miniature relays, Bourns trimpots, Allen-Bradley resistors and potentiometers, diodes I USE: components for computer circuitry I $1 to $35 19 Short Bros. & Harland Ltd. - see "Analog Computers" F. W. Sickles Div., General Instrument Corp. / Computer components I 9 SOLA ELECTRIC CO., 4633 West 16 st., Chicago 50, Ill. / Power supplies, regulated; high-transient capacity I DESCR: direct current power supplies for exacting demands in computer loads, etc.; regulated output voltage; high short-time overload capacity for positive reliable operation I 9 Sorensen & Co., Inc. I Computer power supplies / 9 SOROBAN ENGINEERING, INC., Box 117, Melbourne, Fla. I Computer auxiliaries such as high speed tape perforators (240 characters per second), coded automatic keyboards, automatic format tabulators, etc. I 9 Sprague Electric Co. I Computer components / 9 Sterling Precision Corp. I Computer components I 9 Stromberg-Carlson-San Diego I Computer Read-Out/ 9 STURRUP, INC., 50 Silver St., Middletown, Conn. I Circuitry of various types / USE: computers and other equipment I 9 STURRUP, INC., *a I Coils I DESCR: special smalllot transducers; relay coil winding; coil forms; other servo-component windings I - I 9 SYLVANIA ELECTRIC PRODUCTS, INC., ElectroniC Systems Div., 100 First Ave., Waltham, Mass. I Computer components I 9 Sylvania Electric Products, Inc., Radio & Television Div. / Computer components I 9 Technitrol Engineering Co. I Digital Computer "Blocks" I 9 TUNG-SOL ELECTRIC, INC., 95 Eighth Ave., Newark, 4, N. J. / Diodes, Electron Tubes, Transistors / 9 9 Computers and Automation Vectron, Inc. / Miniaturized sphere resolver / 9 Wang Laboratories / digital signal generators, multiple scalers, static magnetic memory systems and other devices / 9 Weston Electrical Instrument Corp. / analog multiplying element / 9 Wiancko Engineering Co. / Computer components / 9 Wright Aeronautical / Computer components / 9 10. COMPUTERS (See Also: ANALOG COMPUTERS, DIGITAL COMPUTERS) Advance Electronics Lab., Inc. / computers / 10 Airborne Instruments Lab., Inc. / computers / 10 Airflyte Electronics Co. / computers / 10 ALLEGANY INSTRUMENT CO., INC., 1091 Wills Mountain, Cumberland, Md. / Type K-1 Ballistic Computer / DESCR: Computes data from any phenomenon that can be converted to an electrical signal. Presents such data visually, on paper tape, on IBM cards, etc. Includes: action time, force, ignition delay, peak values of force, total impulse (area beneath force-time curve), etc. / USE: When connected to the pick-up devices and when the phenomenon is initiated, the K-1 computer automatically presents 12 channels of informat:bn / $16,810 / 10 ALLEGANY INSTRUMENT CO., INC., *a / Ballistic . parameter computing and recording / DESCR: Peaks, action time, delay time, integrals / USES: In studies of transient phenomena / $3500 to $75,000 / 10 ALLEGANY INSTRUMENT CO., INC., *a / Transducer parameter computing and recording / DESCR: linearity, drift, creep, hysteresis, factor, range. Digital display and printout / USE: in routine checking of transducers / $3500 to $75,000 / 10 Allied Engineering Div. / Analog and digital computers /10 American Electronic Labs. / computers / 10 American Machine & Foundry, Alexandria, Va. / computers / 10 A UTONETIC S, a Div. of No. American Aviation, Inc., 9150 E. Imperial Hway., Downey, Calif. / General purpose computers; fire control systems / 10 Bull S. A. Compagnie des Machines, France / commercial electronic computers and card programmed scientific computers / 10 Corbin Corp. / analog computers / 10 Denominator Co. / computers / 10 Eastern Air Devices, Inc. / computers / 10 Erie Electronics Distributor Div., Erie Resistor Corp. / computers, assemblies / 10 Film Capacitors Inc. / computers / 10 General Transistor Corp. / computers / 10 Hathaway Instrument Co. / transducers, analog and digital recorders, etc. / 10 Heath Co. / computers / 10 Jarvis Electronics Corp. / Systems and techniques / 10 Jet Propulsion Laboratory, California Inst. of Technology / computers / 10 Landis & Gyr, Inc. / computers / 10 10Loyola Laboratories / computers/lO Mack Electronics / special purpose analog and digital computers / 10 The Magnavox Co. / analog and digital computers / 10 MONROE CALCULATING MACHINE CO. - see "Computer Components" / 10 National Bureau of Standards, Data Processing Systems Div. / computers / 10 PACKARD-BELL ELECTRONICS CORP., 12333 W. Olympic Blvd., Los Angeles 64, Calif. / computers /10 Pennsylvania State University, Dept. of Physics / X-RAC computer / 10 GEORGE A. PHILBRICK RESEARCHES, INC., 230 Congress St., Boston 10, Mass. / Philbrick electronic analog computing equipment and components /10 Royal McBee Corp., Port Chester, N. Y. / computers/ 10 SCHWEBER ELECTRONICS, 122 Herricks Road, Mineola, N. Y. / computer for inventory control / 10 Stromberg-Carlson, Rochester, N. Y. / cO:pl.puters / 10 Tele-Dynamics, Inc. / computers / 10 U. S. Air Force, Cambridge Research Ctr. / computers /10 U. S. Navy, Office of Naval Research, Special Devices Center, Port Washington, N. Y. / training devices using analog and digital computers / 10 The George Washington Univ., Logistics Research Project / ONR relay computer, ONR electronic digital computer, data handling machines / 10 Ateliers ·Vaucanson, Paris 20e, France, calculating machines / 10 Vectron, Inc. / special computers for military applications, etc./10 - 60 - 11. COMPUTER TEST EQUIPMENT American Automatic Typewriter Co. / testing devices /11 Arenberg Ultrasonic Laboratory, Inc. / electronic test equipment / 11 Computer Measurements Corp. / computers, ,test equipment/11 Electronic Control Systems, Inc. / Continuity Tester / DESCR: automatic rapid test of cable harnesses resulting in positive identification if incorrect lead connections / USE: production harness assembly testing / 11 EPSCO, INC., 588 Commonwealth Ave., Boston 15, Mass. / Model VR-607 Secondary Standard Voltage Reference Source / Variable voltage reference source providing from + 212 to -212 volts in 1 m V steps with an accuracy of better than . 02%. May also be used to determine unknown voltages to the same degree of accuracy. Binary and decade models available / USE: for static testing of analog and digital systems and computers / - / 11 J. V. KANE & CO., 1004 Cloverhill Rd., Wynnewood, Pa. / NEUBERGER type RMP 400, Laboratory type vacuum tube analyzer / DESCR: 16 different types of tube bases are acceptable through as many socket Buyers' Guide 11 adaptors. A patented adaptor to cross rail busbar construction insures that any future type of tube can be tested. 14 meters with an accuracy of + 15% provide full scale deflection. Meter protectiOn is provided by relay devices. The unit uses rotary stacked selector switches / USE: besides testing tubes at rated characteristics, complete families of curves can be plotted. Dynamic mutual conductance can be evaluated / $495 tQ $2785 / 11 MONROE CALCULATING MACHINE CO. - See "Computer Components" / 11 Servo Corp. of America / Servoboard / DESCR: a set of standard precision mechanical parts including gears, shafts, bearings, hangers, mounting plates, etc. / USE: testing equipment / $365 to $920 for complete kits / 11 Servo Corp. of America / Servoscope / DESCR: a multiple signal generator with means for comparing the signal output with the response of a servo system, component, or low frequency network / USE: in testing equipment / $1390 for Model A; $1950 for Model D /11 TRIO LABORATORIES, INC., 4025 Merrick Rd., Seaford, L. L, N. Y. / Vacuum tube voltmeters / DESCR: Miniature electronic instruments especially designed for panel mounting. Full line of precision measuring or monitoring instruments designed for console or rack equipment / USE: Build-in instruments for testing or monitoring / $85 to $500 / 11 ZUSE KOMMANDIT-GESELLSCHAFT, Neukirchen, Kreis Huenfeld, German Federal Republic / ZII Relay Computer / DESCR: mobile, desk-size automatic digital computer, electric typewriter; input, output and control also by perforated tape / USE: SCientific, engineering, and business applications, particularly in surveying and optics / $25,000 / 11 12. COMPUTING SERVICES Actuarial Computing Service, Inc. / co~puting service /12 ADALIA COMPUTATIONS, LTD., 1410 Stanley St., Montreal 2, Canada / Computing and data processing service / DESCR: Mathematical analysis, programming and computing for engineering, statistical' and business problems on ALWAC ill-E computer (rental $40 per hour) / Fixed-price estimates for complete jobs / 12 AEC COMPUTING FACILITY, 25 Waverly PI., New York 3, N. Y. / computing service / 12 AMERICAN MACHINE & FOUNDRY CO., (Computing Center), GreenWich, Conn. / computing services / DESCR: consulting, problem analysis, programming, coding and running of problems on Datatron digital computer or analog computer / USE: customer's own programming or problems solved by company / Digital machine, $40 to $80 per hour; analog machine, $25 per hour. Personnel at fixed rates j 12 Armour Research Foundation of lil. Inst of Tech. / Operations Research, Computing Service / analog and 12 digital; Goodyear Electronic Differential Analyzers, IBM 650 Digital Computer / 12 Askania Regulator Co. / computing service / 12 BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIA TION, Controllers Dept., Systems and Equipment Research Section, 500 Howard St., San Francisco, Calif. / DESCR: digital computing service, with IBM 702 automatic digital computer / unrestricted as to clients / 12 Battelle Memorial Institute / computing service / 12 BENDIX AVIA TION CORP., BENDIX COMPUTER DIV. , 5630 Arbor Vitae St., Los Angeles 45, Calif. / Computation Laboratory / has installation of All-Purpose Digital Computer (G-15 System), Digital Differential Analyzer (DA-l), and other data processing equipment / rates by hour, for analysts, programmers, and/ or machine time / 12 Brown Unlversity Computing Laboratory / computing service / 12 Bureau of Census / tabulation of statistical data by special machines, by commercial punch-card equipment, and by electronic computing system (the Unifac) / 12 Burroughs Corp., Electronic Instrument Div. I computing services / analysis, programming and computation on digital computer UDEC n / 12 Comptronics Corp. / computing services / 12 Computation Centre, University of Toronto / computing services / programming and consulting services; machine time on Ferut (Ferranti University of Toronto computer) / Ferut time, $80 to $100 per hour / 12 Computer Control Company, Inc., 92 Broad st., Wellesley, Mass. / Mathematical Services / DESCR: problem analysis, coding, program checking, and production on machine best suited to the problem; staff with wide experience / - / 12 Computer Engineering Associates, Inc. / engineering analyses / 12 COMPUTING DEVICES OF CANADA, LTD., P. O. Box 508, Ottawa 4, Ontario, Canada / computing service / DESCR AND USE: analysis, programming and computation on NCR 102D and REAC; available on selfservice basis or all services provided - see also "Consulting Services" / 12 Cornell Computing Center / digital computing service / card programmed calculator, punch card / 12 COUNCIL FOR ECONOMIC AND INDUSTRY RESEARCH, INC., 1200 Jefferson Davis Highway, Arlington 2, Va. - see "Consulting Services" / 12 DATAMA'l1C CORP., 151 Needham St., Newton Highlands 61, Mass. / Computing Services / DESCR: digital computing service / USE: to analyze, process, and solve problems in operations research, applied mathematics, engineering, general business accounting, etc. /- / 12 THE DATICS CORPORATION, 6000 Camp Bowie Blvd., P. O. Box 9128, Ft. Worth, Tex. / Computing services / 12 Dian Laboratories, Inc. / Analog consulting and computing service / 12 ELECTRODATA DIV. OF BURROUGHS CORP., 460 Sierra Madre Villa, Pasadena, Calif. / Computing service, - 61 - 12 Computers and Automation Contract computing / DESCR: problem analysis, programming, coding and running of problems on DATATRON electronic data processing machines / USE: customer may do own programming, coding, or turn over problem and data to company for solution / machines, $90 per hour; service and time of personnel priced at fixed rates / 12 ELECTRONIC ASSOCIATES, INQ., EAI Computation Center at Los Angeles, Inc., EI Segundo, Calif. / analog computing facility / serves industry, government, business / 12 Electronic Computer Programming Institute / computing services / 12 FERRANTI, LTD., Computer Centre, 21 Portland PI. , London WI, England / computing and information handling centre / 12 Financial Publishing Co. / computing service; digital; card programmed calculators, punch card / 12 THE FRANKLIN INSTITUTE LABORATORIES FOR RE SEARCH AND DEVELOPMENT, 20th St. and Benjamin Franklin Pkway., Philadelphia 3, Pa. / computing service; analog; large network analyzer, AC; UNIVAC / 12 General Electric Co., Schenectady, N. Y. / computing service; analog; network analyzer AC and DC, differential analyzer / 12 GENERAL KINETICS INC., 555 23rd St. South, Arlington 2, Va. / Services to Digital Computer Users and Manufacturers / DESCR: mathematical studies; numerical analysis; programming services for major general purpose computers; data reduction services; system studies and evaluation including operations research; construction, modification, and repair of peripheral equipment and special components / - / estimates prepared for each job / 12 Georgia Inst. of Technology, Rich Electronic Computer Center / Computer Center / DESCR: feasibility studies, systems analysis, problem analysis, programming, coding, machine computation, etc. / 12 Harvard University, Harvard Computation Laboratory / computing service; digital; Harvard Mark I and IV machines and UNIVAC I / 12 KCS DATA CONTROL, LTD., Suite 002, Bay Grosvenor Bldg., 880 Bay St., Toronto 5, Ontario, Canadasee "Consulting Services / 12 Arthur D. LitUe, Inc. / consulting and computing services / DESCR: engineering and scientific computations, including formulations of problems; data handling studies and design of systems; feasibility studies and evaluations / USE: in management control, operations research or applied mathematics / monthly billing, based on personnel charges and computer time /12 Loyola Laboratories / computing services / 12 Machine Statistics Co. / Punch Card Data Processing Service / 12 Mass. Inst. of Technology, Office of Statistical Service s / statistical and scientific computing, using punch card machines and Whirlwind 1/ 12 MOORE SCHOOL OF ELECTRICAL ENGINEERING, University of PennsylVania, 200 S. 33 St., Philadelphia, Pa. / computing service: analog and digital; 12. differential analyzer, punch card machines, also University Computing Center based on a Univac / 12 NATIONAL ANALYSTS, INC., 1015 Chestnut St., Philadelphia 7, Pa. / computing services / 12 ~ National Bureau of Standards, Applied Mathematics Div., Washington 25, D. C. / numerical analysis and computing service: digital; using Seac and punched card machines; for government and government contractors only /12 The National Cash Register Co., Electronics Div., Calif. / computing service: digital; Cadac 102A, etc. / 12 National Physical Laboratory, Mathematics Div., England / computing service / 12 NORTIffiOP AIRCRAFT, INc.l computing and data handling services / DESCR: computing and data handling services in EAI precision analog and IBM 797 digital equipment (to be augmented in Sept. 1957 by larger digital computer of IBM 704-709 type); reconnaissance data handling methods and equipment developed and built; data handling and reduction; develops and builds computing and data handling components and systems to order; operates own equipment / USE: for R&D development and fabrication; service bureau work / rates on request / 12 Purdue University, Dept. of Math. / computing service: digital; card programmed calculator, punch card - machines / 12 J. B. Rea Co., Inc. / computing service / digital computer: mM Model 2 card-programmed calculator; analog computer: Electronic Associates computer; problem solving staff available / - / $20 to $50 per hour; also fixed-price / 12 RECORDING AND STATISTICAL CORP., 100 Sixth Ave. , New York 13, N. Y., and also Regional Service Bureaus in Boston, Chicago, Montreal, and Toronto / Computing and data processing services; electronic digital computers and punched card equipment of latest types available in all regional offices / - / - / 12 Reeves Instrument Corp. / computing services / computing service: analog; Reac / 12 REMINGTON RAND UNIVAC DIVISION, SPERRY RAND CORP., 1902 West Minnehaha Ave., St. Paul, Minn. / Electronic Computer Service Center / DESCR: programming and computing service on Univac Scientific system, and other equipment / USE: special problems, routine services / - / 12 REMINGTON RAND UNIVAC DIVISION, SPERRY RAND CORP., Frankfurt, Germany / Electronic Computer Service-_Center / DESCR: programming and computing services on Univac systems and other equipment / USE: special problems, routine services / 12 REMINGTON RAND UNIVAC DIVISION, SPERRY RAND CORP., 2601 Wilshire Blvd., Los Angeles, Calif. / Electronic Computer Service Center / DESCR: programming and computing services on Univac systems and other equipment / USE: special problems; routine services / - / 12 Rensselaer Polytechnic Institute, Computing Laboratory / computing service / 12 REMINGTON RAND UNIVAC DIVISION, SPERRY RAND CORP., 315 4th Ave., New York 10, N. Y. / Electronic computer service center / DESCR: programming - 62 - 12 Buyers' Guide and computer services on Univac and Univac Scientific Computer Systems and other equipment / USE: special problems and routine services / - / 12 Rotron Mfg. Co., Inc., Woodstock, N. Y. / computing services and equipment / 12 THE SERVICE BUREAU CORPORATION, 425 Park Ave., New York 22, N. Y., a subsidiary of International Business Machines Corp. / DESCR: Data Processing Centers with 650' s in Atlanta, Ga., Boston, Mass. , Chicago, ID., Cleveland, Ohio, Detroit, Mich., Houston, Texas, Los Angeles, Calif., Minneapolis, Minn., New York, N. Y. (704 and 650), Philadelphia, Pa., Portland, Ore., St. Louis, Mo., Seattle, Wash., San Francisco, Calif., and Washington, D. C. / USE: Service Bureaus with punched-card machines and experienced operators to solve technical computing problems or process business data located throughout the country. Locations of Service Bureaus furnished on request / - / 12 THE SERVICE BUREAU CORPORATION, 590 Madison Ave., New York, N. Y., a subsidiary of International Business Machines Corp. / Service bureau facilities / DESCR: all models, types of IBM machines, including 650, 704. Facilities for all applications: methods, computing, programming, operations / by hourly rate or job / 12 Scientific Computing Service, Ltd. / computing service / /12 Southwestern Computing Service / computing service / 12 Stanford Computation Center, Stanford University / computing services / 12 Swedish Board for Computing Machinery, Sweden / computing service using two computers, BARK and BESK, designed and built by the board; BARK is a binary, automatic relay computer; BESK is a binary electronic sequence computer, storing orders and data in a parallel Williams memory or in a magnetic drum memory; research on numerical analysis / 12 TELECOMPUTING CORP., 12838 Saticoy St., No. Hollywood, Calif. / Data Reduction Services / film and oscillograph measuring and recording services, using Telecomputing per sonnel and equipment for work on customer records / - / from $6 to $10 an hour, depending upon machine used / 12 U. S. Air Force, Aeronautical Research Laboratory, Directorate of Research, Wright Air Development Center, Wright-Patterson Air Force Base, Ohio / computing service / DESCR: digital and analog; card programmed calculator, General Electric OARAC, Univac 1103, Bendix DDA, Reacs, Gedas / USE: for government only / 12 U. S. Air Force, Rome Air Development Center, Statistical Services Div., Griffiss Air Force Base, N. Y. / computer service / DESCR: analog, digital; Elecom 120, Bendix Digital Differential Analyzer D12, Reeves Electronic Analog Computer, Benson-Lehner data reduction equipment, etc.; compiling statistical -reports; EAM tab equipment; 407 tab ul...1tor , 552 interpreter, 514 summary puro h, 089 collator, 082 sorter, 056 verifier, 031 keypunch, 024 key punch / USE: for government only / 12 12 U. S. Air Force, Computation Research Sec., Wright Air Development Center, Wright-Patterson Air Force Base, Dayton, Ohio / computing service / DESCR: analog and digital, card programmed calculators, Reacs, punch card / for government only /12 U. S. Army, Ballistic Research Laboratories, Aberdeen Proving Ground, Md. / computing service for government use only / 12 U. S. Naval Proving Ground, (Naval Ordnance Computation Center), Dahlgren, Va. / computing service, for government and government contractors only / 12 U. S. Navy Aviation Supply Office, Data Processing Div., Philadelphia, Pa. / operates IBM 650 and IBM 702 for inventory control. Government use only / 12 University of California, Berkeley, Calif. / IBM 701 for research, etc. / 12 University of California, Dept. of Mathematics, Numerical Analysis Research, Los Angeles, Calif. / research in numerical analysis / maintains a facility where university personnel solve scientific problems /12 University of Cambridge, University Mathematical Laboratory, Corn Exchange St., Cambridge, England / computing service / uses Edsac / 12 UNIVERSITY OF MICIDGAN, Willow Run Laboratories, Willow Run Airport, Ypsilanti, Mich. / Computing Services / DESCR: consultation, problem formulation, analy~is, programming, coding; data reduction, including processing, graphing, and drafting; instruction in (rOgramming and numerical methods; employing digital computers, MIDAC, IBM 604, and desk calculators; analog computer containing 172 driftstabilized amplifiers, 15 resolvers, 12 servo multipliers, 13 plotting tables, and 10 function generators / USE: both government and industrial contracts / 12 University of Rochester, Computing Center / computing services / 12 University of Toronto, Computation CeIter, Toronto, Canada / computing service (digital) using a Ferranti Electric automatic computer; punch card machines /12 University of Wisconsin / computing service / both analog and digital / 12 George Washington Univ., Logistics Research Project / computing service using ONR relay computer and ONR electronic digital computer, with magnetic drum memory / 12 Watson Scientific Computing Laboratory / computing service / 12 WAYNE STATE UNIVERSITY, Detroit 2, Mich. / Computation Laboratory / DESCR: 5300-word magnetic drum plus 100-word magnetic core computer, UDEC, built of Burroughs pulse control equipment; mM 650 electronic data processing machine; undergraduate and graduate education in computers and applications; informal training programs; research in business systems / USE: instruction, solution of problems, etc. / - / 12 Westinghouse Electric Corp., Analytical Dept. / computing service; analog and digital; using Anacom, AC and DC network analyzers, and IBM 704 ED PM / 12 - 63 - Computers and Automation 13 13. CONNECTORS (COMPUTER TYPES) AMP, Inc. I Terminals and connectors I 13 AMP, Inc. I Taper Terminations I 13 AMP, Inc. I "Taper Blocks" I 13 AMPHENOL ELECTRONICS CORP., 1830 S. 54th st. , Chicago 50, lli. I Connectors / DESCR: all types of connectors for computer applications, including AN, RF and Rack & Panel connectors in standard, miniature and sub-nrlntature sizes I USE: sub-unit plug ins; radio frequency and electrical power / - / 13 Burndy Corp., Omaton Div. / electrical connectors / 13 Cambridge Thermionic Corp. I connectors / 13 Cinch Manufacturing Corp. I connectors / 13 DeJUR Amsco Corp. / Precision connectors (continental connectors) / 13 SCHWEBER ELECTRONICS, 122 Herricks Rd., Mineola, N. Y. I connectors / 13 U. S. Components, Inc. / connectors / 13 14. CONSULTING SERVICES (Computer Field) ADALIA LTD. (see Adalia Computations, Ltd.), 1410 Stanley St., Montreal 2, Canada / Consulting services in digital and analog computer applications, data processing, automatic control, design and development of special input, output, storage and computing equipment; systems analysis and design; operations research. Also problem analysis, programming, coding and computing service / Have ALWAC ill-E Computer System I -I 14 THE AUSTIN CO., ,76 Ninth Ave., New York 11, N. Y. I engineering, design, development of electronic and electro-mechanic systems for control systems for industry and government; plant studies, determining economic feasibility of automation equipment for labor saving, process control, product improvement I 14 Automation Consultants, I:1c. / Consultants in electronic systems and devices; publishers of "Office Automation" / 14 AUTOMA TION ENGINEERS CO. 246 W. State St. , Trenton, N. J. / Management consultants / Analysis of automation opportunities and the economics of application; supervision in design and installation of automation improvements: Registered Professional Engineers / 14 Basic and Experimental Physics I consulting services I 14 Benge Associates / Management engineers / 14 BERKELEY ENTERPRISES, INC., 815 Washington St. , Newtonville 60, Mass. I 90nsulting Service I consultation in logical design, applications, and marketing of automatic data-processing machinery / 14 Booz, Allen & Hamilton I Management conoultants I 14 Bowles, Andrews & Towne I consulting services I 14 Harry P. Bridge Co. I advertising, marketing I 14 CANNING, SISSON & ASSOCIATES, 1140 S. Robertson Blvd., Los Angeles 35, Calif. I Consultants in utilization of electronic computers and other automatic data handling equipment; publisher of "Data Processing Digest" / 14 14 Circuit Engineering / consulting service / 14 Computer Control Company, Inc., 92 Broad St., Wellesley 57, Mass. / consulting service; by engineers, mathematicians, physicists in design, construction and programming of large scale digital systems / - / 14 Computing Consultants, Inc. I consulting services I 14 COMPUTING DEVICES OF CANADA, LTD., P.O. Box 508, Ottawa 4, Ontario, Canada I Consulting Services / DE'SCR ,and USE: consulting on applications of computers and data processing machines to technical computing and business data processing; exclusive Canadian agents for Elliott Bros., (London) Ltd., Electronic Data Processing Systems / - / 14 COUNCIL FOR ECONOMIC AND INDUSTRY RESEARCH, INC., 1200 Jefferson Davis Highway, Arlington 2, Va. I Economic research; Electronic computing services I specialists in the application of modern analytical techniques to government, business and financial problems; full range of services in programming, computing and data processing; sample design; market research; the Mathematical and Statistical Services Division formulates, analyzes, and specifies procedures for solving a wide range of scientific and commer cial problems / 14 Data Processing Counselors / design of business systems, application of computers, training of personnel 114 THE DATICS CORP., 6000 Camp Bowie Blvd., P. o. Box 9128, Ft. Worth, Tex. / consulting services, research and development, data processing and data reduction services / 14 DAYSTROM SYSTEMS, Div. of Daystrom, Inc., 5640 La Jolla Blvd., La Jolla, Calif. / Complete systems for data handling, data logging, process control, special purpose digita~ computers, industrial control, and airborne systems / 14 The de Florez Co. I consulting services, such as development of new processes and machinery / 14 Dian Laboratories, Inc. I Computing and consulting services; analog computing center / 14 JOHN DIEBO'LD & ASSO CIA TES, INC., 40 Wall St. , New York, N. Y. I Management Consultants I Specializing in management science. Provides counsel on the management of problems of organiza, tion, communications, policy formulation, production, distributi:)n. Staff includes specialists in automation, computers, automatic control eqUipment, operations research, linear programming. Specifically engaged in helping clients put management science to work in the solution of their problems I 14 Digitronics Corp. / consultants and manufacturers / 14 EBASCO SERVICES INCORPORATED, 2 Rector St., New York 6, N. Y. (also Chicago; Dallas; Portland, Oreg. ; Washington, D. C. ) / Consulting Services / management consultants including the application of electronic systems to data pr9cessing and engineering I - I 14 . Wesley B. Edgar, Columbia 1, S. C. / consulting services I 14 ELECTRODATA DIV. OF BURROUGHS CORP. - see "Computing Services" I 14 - 64 - Buyers' Guide 14 14Fairbanks Associates / Consultants in application and Scientific Computing Service, Ltd., London, Eng. / installation of electronic systems in clerical methods Consulting Service / 14 and procedures; evaluation of proposed savings; SOROBAN ENGINEERING, INC., Box 338, Melbourne. operations research / 14 . Fla. / Consulting Services / DESCR: consulting on H. S. GELLMAN & CO. LTD., 110 Bloor St. West, data preparation and output tabulating components Toronto, Onto / Consulting Services / Consultants and systems in addition to specialized electronic on automatic data processing systems; application digital computing devices and systems / - / approxof systems and equipment to business data processimately $100 per day / 14 ing; system analysis and design; training of clients' University of Sydney, Dept. of Electrical Engrg., and personnel; programming and computing service for C. S. L R. O. Section of Mathematical Instruments, business, scientific and engineering calculations /14 N. S. W., Australia / Research, development, General Electric Co., Tube Dept., Schenectady, N. Y. / and consulting / 14 Tube Application Assistance / 14 General Research Co. / Consulting and procurement services / 14 Georgia Inst. of Technology, Rich Electronic Computer 15. COURSES BY MAIL (Computer Field) Center, Atlanta 13, Ga. / Computer Center / Feasibility studies, systems analysis, problem analysis, EDMUND C. BERKELEY & ASSOCIATES, 815 Washprogramming and coding, and machine computation, ington St., Newtonville 60, Mass. / Courses by etc. /14 Mail / DESCR: over 30 courses by mail in autoHastings, Jr., Cecil / Approximations for digital matic computers, construction of small electric computers / 14 brain machine s, construction of small robots, KCS DATA CONTROL, LTD., Suite B62, Bay-Grossymbolic logic, other scientific subjects / USE: venor Bldg., 880 Bay St., Toronto 5, Ont., Can. / instruction / $9 to $35 / 15 Consulting, programming and computing service s / BUSINESS ELECTRONICS, INC., 420 Market St., San consultation on selection, installation and applicaFrancisco 11, Calif. / A Correspondence Course tion of electronic computing and data processing "Programming for Business Computers" / DESCR: systems for business, scientific and engineering Instruction includes: principles of electronic data problems and processes; analysis of problems and processing, programming business problems for routines; pla.nnj.ng of projects; training of clients' electronic computers, evaluation of computer hardstaff; programming and computing service for busiware, etc. / USE: to train men and women in the application of business problems to electronic comness, scientific engineering, design and statistical calculations / - / 14 puters / $135 cash, $150 terms / 15 Arthur D. Little, Inc. / Consulting Services / DESCR: Capitol Radio Engineering Institute, Inc. / Courses engineering and scientific computations including by mail / 15 formulation of probtems; data handling studies and design of systems; feasibility studies and evaluations / USE: in management control, operations research or applied mathematics / monthly billing, 16. DATA PROCESSING MACHINERY based on personnel charges and computer time / 14 (see also DIGITAL COMPUTERS) Machine Statistics Co. / Punch Card Data Processing Service / 14 ADDRESSOGRAPH-MULTIGRAPH CORP., 1200 Babbitt Mills, H. Jefferson, Jr., Mgnt. Consultnt / ManageRd., Cleveland 17, Ohio / Card-to-Magnetic Tape ment counsel in systems analysis and equipment Converter / DESCR: reads mM or Rem Rand evaluation / 14 punched cards at 600 cards per minute, adds group NATIONAL ANALYSTS, INC. / Consulting services/14 data not contained in punched cards, records selecNUCLEAR DEVELOPMENT CORP. OF AMERICA, ted messages on from 2 to 12 tape recorders, and 5 New St., White Plains, N. Y. / Consulting and outfiles preselected cards / - / 16 System Design / design of computing and data handADDRESSOGRAPH-MULTIGRAPH CORP., *a / Magling systems; and determination of requirements /14 netic Tape Electronic Printer / DESCR: parallelPANELLIT SERVICE CORPORATION, subsidiary of serial, reads data contained on magnetic tape and Panellit, Inc., 7401 N. Hamlin Ave., Skokie, ill. / prints at 1500 to 3000 lines per minute onto ordinInstrumentation engineering, design, installation, ary continuous paper / 16 start-up, and contract maintenance / 14 ADDRESSOGRAPH-MULTIGRAPH CORP., *a / Output Pi-Square Engineering Co., Inc. / Analysis and. soluData Converter / DESCR: reads, edits, and extracts tion of engineering problems; analog computing unit messages from computer prepared group or block magnetic tape, adds common data from auxiequipment available / 14 liary storage, and records programmed unit mesThe Ramo-Wooldridge Corp., Computer Systems Div. / sages onto 2 to 12 tape recorders / - / 16 Consulting Services / DESCR: systems analyses Aero Research Instrument Co., Inc. / data reduction leading to an optimum application of modern automation techniques and equipment; specification and and data gathering system~ / 16 installation of procedures and equipment to accomAIRBORNE INSTR~ENT LABORATORIES, MODAC DIVISION, (formerly Mountain Systems, Inc.) plish recommendations of systems studies / - / 14 - 65 - Computers and Autoaation 16 16 equipment; also oscillogram readers, data acq uisi864 Franklin Ave., Thornwood, N. Y. / MODAC Data tion and recording systems / USE: to reduce data Processing Machines / DESCR: digital electronic into digitalized form / ~OO and up / 16 computers for statistics, accounts receivable, filing, Consolidated AvioniCS Corp. / data processing / 16 etc. ; drums, tape or punch cards in and out / USE: Consolidated Engineering Corp. / Digital and analog bookkeeping, mailing list maintenance, etc. / data handling and conversion systems (Sadic, Mil$100.000 to $500, 000 / 16 isadic, etc.) / 16 Airborne Instruments Lab., Inc. / Data reduction Cook Research Laboratories, Div. of Cook Electric equipment / 16 Co. / Magnetic data recording systems, digital, Airc~aft Armaments, Inc. / Data reduction eqpmt / 16 analog, and hybrid information processing systems, ALWAC CORP., 13041 S. Cerise, Hawthorne, Calif. particularly for aircraft and airborne applications. - see "Digital Computers" / 16 Special purpose Input-Output equipments for use American Electronic Labs. / Data reduction eqpmt /16 as adjuncts to commercial computers. Computing, American Machine & Foundry, Electronics Div. / programming, and equipment maintenance servDigital data-handling equipment / 16 ices / - / 16 American Machine & Foundry / Data reduction eqpmt/16 CUBIC CORPORATION, 5575 Kearny Villa Rd., San AMPEX CORP., 934 Charter St., Redwood City, Calif. Diego 11, Calif. / Completely transistorized digital / Magnetic Tape Recorders, Programmers, Memory readout systems. Range of transistorized plug-in Units, Input-Output-Storage Tape Units / $2, 750 up modules for digital logic building. / DESCR: Pro/16 vides conversion from analog (sense shaft position) Analogue Controls Inc. / Data reduction eqpmt / 16 to digital recorded on magnetic tape or decimal Applied Science Corporation of Princeton / data proon paper tape. Equipment features built-in test cessing machinery / 16 equipment and marginal checking facilities. / Armour Research Foundation, Illinois Inst. of TechUSE: data reduction and conversion. / 16 nology / Digital, analog, and data handling ~quipDATAMA'IIC CORP., 151 Needham St., Newton Highment / 16 . lands 61, Mass. / Electronic computer systems Atomic Instrument Co. / Model 577, Multi-channel for general accounting and data-processing operStrain Gauge Analyzer & Recorder / 16 ations / 16 THE AUSTIN CO., 76 Ninth Ave., New York 11, N. Y./ The Davies Laboratories, Inc. (Div. of MinneapolisAustin Automatic Data Recording System / DESCR: Honeywell Regulator Co. ) / Automatic data reducflexible high-speed electronic equipment to measure, tion equipment / 16 record, store, and program data at rates which can Dennison Manufacturing Co. -- see "Punch Card utilize the speeds of electronic computers; sampling Machines" / 16 up to 20 times per second / U~E: automatic logging Electro-Mechanical Research, Inc. / data processing of variables in production or laboratory testing; /16 evaluation of performance / $40,000 to $80,000 / 16 ELECTRONIC ASSOCIATES, INC., Long Branch, N. J. BECKMAN INSTRUMENTS, INC., SYSTEMS DIVISION, / Dataplotters, Models 3033 and 1133 / DESCR: 325 N. Muller Ave., Anaheim, Calif. / Data procomplete data reduction systems; except for the cessing systems for process industries and test digital reading device, each model is a self-confacilities / DESCR: multi-channel digital data handtained system capable of independent operation, ling systems; 200 channel strain gage recorder, and includes all necessary system functions such automatic process control, digital data handling as scaling, parallaxing, and coding; a full four-decand recording / 16 imal-digit system, or equivalent, is used; reliaBENDIX AVIATION CORP., RESEARCH LABORATORbility is assured through the use of chopper stabiIES DIVISION, P. O. Box 5115, Detroit 35, Mich. / lized d-c amplifiers and fully sealed relay matrices/ Data processing machinery - see "Analog Computers" USE: designed to accept digital data from keyboard, /16 . / punched cards or punched paper tape, and present BENDIX COMPUTER DIV., BENDIX AVIATION CORP., the analog equivalent of this data in graphical form 5630 Arbor Vitae St., Los Angeles 45, Calif / on an X- Y recorder / - / 16 Electronic data processing machines / 16 Electronic Computer Programming Institute / data Benson -Lehner Corp. / Ballistic Film Analyzer and processing / 16 Recorder (Boscar) / 16 Electronic Control Systems, Inc. / Automatic test Benson-Lehner Corp. / Oscillograph Trace Reader equipment / DESCR: special purpose automatic (OSCAR) / 16 electronic test equipment / USE: determined by BURLINGAME ASSOCIATES, LTD., 103 Lafayette St., specific application / - / 16 New York 13, N. Y. / Digital voltmeters, high ELECTRONIC ENGINEER ING CO., 1601 East Chestspeed digital display (Typoscope) / 16 nut St., Santa Ana, ,Calif. / Format Control Buffer / Century Engineers, Inc. / data processing / 16 DESCR: makes digital magnetic tapes in proper comCentury Geophysical Corp. / data processing / 16 puter format. Accepts random rate digital informCOLEMAN ENGINEERING CO., 6040 W. Jefferson ation from multiple sources. Meets all requireBlvd., Los Angeles 16, Calif. / Data Reduction ments of computer format. Provides for constant Equipment / DESCR: powered comparator, measures recording density with maximum tape economy. / data on film accurately semi-automatically and USE: in making computer input tapes without tying digitalizes output into variety of data tabulating up the computer / $50, 000 - $55, 000 / 16 - 66 - 16 Buyers' Guide Electronics Corp. of America, Business Machines Div., / MAGNEFILE / DESCR: special purpose business machine for inventory and similar uses / USE: in the office to maintain running records of Inventory Control, Production Planning, Scheduling, and Control, Sales Analysis, etc. / Rental, $1, 200 per month /16 Feedback Controls, Inc. / data processing / 16 FISCHER & PORTER CO., 330 Warminster Rd., Hatboro, Pa. / A-utomatic Logger / DESCR: automatically measures and assembles information from plant, process, or research operation; computes operating guides using analog computer. Presents data as typewritten log, punched paper tape or other digital output / USE: for automation purposes on conjinuous processes / - / 16 FISCHER & PORTER CO., 330 Warminster Rd., Hatboro, Pa. / Multiple Pressure Readout System / DESCR: utilizes single high accuracy Press-I-Cell pressure measuring device to sample and record simultaneously up to 200 pressures with accuracy of 1 part in 2000 / USE: for fast digital readout of pressures in wind tunnels, chemical plants, test facilities, etc. / - / 16 FRIDEN CALCULATING MACHINE CO., INC., San Leandro, Calif. / Friden Add-Punch Machine / DESCR: ten-key electrically operated adding and listing machine that produces a standard adding machine tape as an original source document and, as a by-product, punches selected data on a "common language" tape for subsequent data processing / USE: adding-listing machine which may be used to record data for integrated data processing by cardpunch or other common language machine / $1500 (taxes not included) / 16 Giannini Datex Div. / data processing / 16 Honeywell, Doelcam Division / data processing / 16 HOOVER ELECTRONICS CO., 3640 Woodland Ave. , Baltimore 15, Md. / Data Processing Systems / DESCR: Complete test data processing systems, including specialized digital computers for on-line computation / USE: to suit customer's requirements / variable / 16 HUGHES RESEARCH AND DEVELOPMENT LABORATORIES, HUGHES AmCRAFT CO., Culver City, Calif. / Automatic data handling systems for commercial and military applications / 16 Hycon Eastern Inc. / Analog data reduction Systems/16 Industrial Research Co. / data processing / 16 Jet Propulsion Laboratory, California Institute of Technology / data-handling systems / 16 Kaye Development Co. / data processing / 16 Kelt Corp. / data processing / 16 A. KIMBALL CO., 444 4th Ave., New York 13, N. Y. / See Punch Card Machines / 16 THE KYBERNETES CORP., Division of Self-Winding Clock Co., 9 East 40th St., New York 16, N. Y. / automatic industrial data processing, digital printout and digital indicator systems / 16 Lewyt Mfg. Corp. / CDT; Coordinate Data Transmitter System / DESeR: Unattended digital transmitter / USE: screens, interprets, codes radar information for transmission over telephone lines / 16 - 67 - 16 Librascope, Inc. / data handling, equipment and components / 16 MARCHANT RESEARCH, INC., subsidiary, Marchant Calculators, Inc., 1475 Powell St., Oakland B, Cal. / electronic digital computers and data processing systems / 16 Monrobot Corp. / data processing machines I 16 MONROE CALCULATING MACHINE CO. -- See Computer Components / 16 NATIONAL ANALYSTS, INC. I data processing machinery I 16 Navigation Computer Corp. / data processing I 16 North Electric Manufacturing Co. I data processing/ 16 Northrop Aircraft, Inc. -- See Data Processing Machinery I 16 NUCLEAR DEVELOPMENT CORP. OF AMERICA, 5 New St., White Plains, N. Y. / Special purpose data handling systems, and system design I 16 NUCLEAR DEVELOPMENT CORP. OF AMERICA, *a / -- see'Digital Computers" I 16 Oerlikon Tool & Arms Corp. of America / data proce ssing I 16 Otis Elevator Co. I data processing I 16 RADIATION INC., P. O. Box 37, Melbourne, Fla. / data processing machinery / 16 Ramo-Wooldridge Corp. I data processing / 16 REMINGTON RAND UNIVAC DIVISION, SPERRY RAND CORP., 315 4th Ave., New York 10, N. Y. / Specially equipped electric typewriter with separ:ate electronic reading and punching units (available with either or both). System automatically produces punched paper tape as original documents are typed, and automatically types from punched tape at apprOximately 120 words per minute. Can be designed for 5, 6, 7, or B hole tape codes / 16 REMINGTON RAND UNIVAC DIVISION, SPERRY RAND CORP. -- see "Digital Computers" / 16 Republic Aviation / Automatic data processing / 16 RICHARDSON CAMERA CO., 171 W. Magnolia Blvd., Burbank, Calif. I Data Film Reader / DESCR: . assesses data recorded on film from Bmm. to 70 mm. ; interchangeable fUm transports and lenses; cine motion variable to 24 F. P. S.; stop, motion forward, and reverse / USE: can be used with analog-to-digital converter in assessing data on films of missile test, aircraft test, rocket test, instrumentation recordings, oscillograph recordings, etc. I $3650 to $20,000, depending on accessories / 16 Servomechanisms, Inc. / Mechanical Development Apparatus / 16 Servomechanisms, Inc. / Master Air Data Computer/16 Servomechanisms, Inc. / Angle of Attack Computer / 16 Servomechanisms, Inc. / Automatic Industrial Process Controller / 16 Servomechanisms, Inc. I Heading synchronizer / 16 Sterling Precision Corp. / data processing machinery /16 Stromberg-Carlson, Rochester, N. Y. / data systems/16 Sunvic Controls, Ltd., England / data processing m achinery / 16 SYLVANIA ELECTRIC PRODUCTS, INC., ELECTRONIC SYSTEMS DIVISION, 100 First Ave., Waltham 54, Mass. / large electronic digital computers on contract / 16 COmputers and Automation 16 17 Taller & Cooper, Inc. / Telemetering Remote Control 17. DELAY LINES (Computer Types) System / DESCR: controls an unlimited number of plant functions automatically or manually by means Advance Electronics Lab., Inc. / delay lines / 11 of a single pair of wires / USE: for water works, . Aeromotive EquipmenLCorp. / delay lines / 17 sewage works, other industrial processes, etc. / Airdesign, Inc., / delay lines / 17 $3000 up / 16 Alden Products Co. / magnetic delay line units / 17 Taller & Cooper, Inc. / data recording and converAmerican Machine & Foundry Co., Electronics Div. / sion system / 16 delay lines / 17 Tally Register Corp. / High-speed data reduction sysANDERSEN LABORATORIES, 39 Talcott Rd., West tems for telemetering applications. Special purHartford, Conn. / Solid Ultrasonic Delay Lines / pose business machines / 16 DESCR: Fused quartz electronic delay devices; TELECOMPUTING CORP., 12838 Saticoy St., No. suitable for use in storing modulated r-f signals Hollywood, Calif. / Data processing machinery / 6 to 4500 microseconds / USE: in digital computers DESCR: automatic data reading, recording, and as a data storage device; a recirculation system / plotting equipment; automatic business data accumu$200 to $1000 for most computer applications / 17 lation and analysis equipment / USE: by scientific Arenberg Ultrasonic Laboratory, Inc. / Ultrasonic computing and data reduction installations / from solid delay lines / 17 $3000 to $20, 000 / 16 Audio Instrument Co., Inc. / -- see "MagnetiC Tape TELEMETER MAGNETICS, Dl:!., 2245 Pontius Ave., Recorder" Los Angeles 64, Calif. / -- see "Magnetic Cores" Axel Bros., Inc., Electronics Div. / delay lines / 17 /16 Barker & Williamson, Inc. / delay lines / 17 TELEREGISTER CORP., 445 Fairfield Ave., StamBel Fuse, Inc. / delay lines / 17 ford, Conn. / Magnetronic Reservisor Reservation Bliley Electric Co. / delay lines / 17 System / DESCR: inventory of accommodations such Richard D. Brew & Co. / ultrasonic delay lines / 17 as airline seats or railroad reserved space is mainBrubaker ElectrOniCs, Inc. / delay lines / 17 tained on a magnetic drum / USE: ticket agents at BRYANT GAGE AND SPINDLE DIVISION - see "Magmultiple remote locations check availability by use netic Drums" / 17 of key sets, reduce stored inventory when a sale is Burnell & Co., Inc. / delay lines / 17 made, and store information on specifiC assignment Celco, Constantine Engineering Laboratory Co. / of accommodations / rented on service contract, delay lines / 17 price varies / 16 CoUcraft Inc. / delay lines / 17 TELEREGISTER CORP., *a / Telefile / DESCR: InColumbia Technical Corp. / delay lines / 17 ventory of products maintained on a magnetic drum Communication Accessories Co. / delay lines / 17 and/or magnetic tapes. Also maintained; commitCommunication Products Co., Inc. / delay lines / 17 ments, prices, discounts, etc. / USE: Operators Computer Control Co., Inc. / Solid Acoustic Memory change stored data in accordance with production, /17 orders received and shipments; when invoice is Computer Control Co., Inc. / 15 and 30 Unit Delay typed, Telefile makes extensions, applies discounts, Panels / 17 updates inventory. Availability checks can be made Control Electronics Co., Inc. / delay lines / 17 by instantaneous visual display or by printed tabuCorona Engineering Service / delay lines / 17 lation / rented on service contract; price varies / 16 Deltime Inc. / magnetostrictive delay lines / 17 TELEREGISTER CORP., *a / Bid-Asked Quotation Development Electronics Corp. / delay lines / 17 System / DESCR: prices of stocks are maintained DX Radio Prod. Co. / delay lines / 17 on a magnetic drum; electronic equipment decodes Dynamic Electronics - N. Y., Inc. / delay lines / 17 requests, locates desired stock, reads and conThomas A. Edison, Inc., Instrument Div. / delay verts information, and transmits it / USE: customer lines / 17 dials three-digit number assigned to specifiC stock; Edo Corp. / delay lines / 17 quotation appears on ticker tape / rented on service Electrometric, Inc. / delay lines / 17 contract; price varies / 16 Electronic Computer Div. of Underwood Corp. / delay Union Switch and Signal Co., Div. of Westinghouse lines, decade delay lines / 17 Airbrake / data processing / 16 EI-Rad Mfg. Co. / delay lines / 17 Valor Electronic Components Co. / data processing / 16 EPSCO, INC., 588 Commonwealth Ave., Boston 15, VICTOR ADDING MACHINE CO., 3900 N. Rockwell Mass. / Delay lines / DESCR: precision delay St., Chicago 18, illinois / Victor Digit-Matics / lines capsulated in plastic lumped constant and DESCR: Solenoid actuated adding machines for electronic types / USE: computer / - / 17 digital data printing and general calculating purposes Essex Electronics / delay lines / 17 / $425 - $895 / 16 Farnsworth Electronics Co. / delay lines / 17 Wang Laboratories / data handling equipment / 16 Federal Television Corp. / delay lines / 17 West Coast Electronics Co. / data processing machFERRANTI ELECTlUC, INC., 30 Rockefeller Plaza, inery / 16 New York 20, N. Y. / Digital Storage Delay Lines I Wright Aeronautical / data processing machines / 16 DESCR: hermetically sealed lattice networks for storage of up to 30 bits at rates up to 5 mcl s. - 68 - Buyers' Guide ,17 Acoustic delay lines for storage up to 5000 bits at rates up to I mc/s I USE: for economical rapid access. Stores in small packets I $150 - $320 117 Forbes & Wagner, Inc. I delay lines I 17 Fugle-Miller Labs, Inc. I delay lines I 17 General Electric Co., Syracuse, N. Y. I delay lines/17 General Instrument Corp., Ontario, Can. / delay lines I 17 The Gudeman Co. of Calif. I delay lines / 17 Gulton Mfg. Corp. / delay lines / 17 Harder Co., Donald C. I delay lines I 17 Harnett Electric Corp. / delay lines I 17 Hupp Electronics Co. / delay lines / 17 Insulated Circuits, Inc. / delay lines I 17 Jacobs Instrument Co. / delay lines / 17 'Leonard Electric Products Co., Inc. / delay lines 117 MacLeod & Hanopol, Inc. / delay lines / 17 Mag-Electric Products, Inc. / delay lines I 17 Magne-Pulse Corp. / delay lines I 17 Melpar, Inc. / delay line s / 17 Meridian Inc. I delay lines / 17 Micamold Electronics Mfg. Corp. / delay lines I 17 James Millen Mfg. Co., Inc. / delay lines I 17 National Aircraft Corp. / delay lines I 17 National Bureau of Standards, Data Processing Systems Division I delay lines / 17 PCA Electronics, Inc. / delay lines I 17 Polyphase Instrument Co. / delay lines / 17 Pulse Engineering / delay lines I 17 Pulse Techniques, Inc. I delay lines / 17 Radio Industries Inc. I delay lines / 17 Shallcross Mfg. Company / delay lines / 17 Short Bros. " Harland Ltd. -- see "Analog Computers" Standard Coil Products Co., Inc. / delay lines / 17 ST URR UP, INC. t 50 Silver St., Middletown, Conn. / Solid-Ultra Sonic Delay Lines - 2 to 6600 or more microseconds - and Component Post Delay Channels / wide band widths; frequency; handling ability; better than 0.05 microseconds rise / 17 Technitrol Engineering Co. I delay lines / 17 Tobe Deutschmann Corp. / delay lines / 17 Union Electric" Mfg. Co. / delay lines / 17 United Transformer Co. / delay lines / 17 Vanguard Electronics Co. I delay lines / 17 Wang Laboratories I magnetic delay-line memory units / 17 Western Coll Products Co. / delay lines I ~7 18 FRIDEN CALCULATING MACHINE CO., INC., San Leandro, Calif. / Automatic Desk Calculator I DESCR: add,. subtract, multiply, divide automatically; wide variety of styles including Model SRW for automatic extraction of square root / USE: desk calculation / $440 to $1300 (taxes not included) / 18 Hamann Calculating Machine Co. / Adding, subtracting, multiplying desk calculators / 18 MARCHANT CALCULATORS, INC., 1475 Powell St. , Oakland 8, Calif. I Automatic electric calculators (desk type) I DESCR: fully automatic models, with multiplication, division,' decimals, carriage control, dial clearance, accumulation, round-off, squaring / USE: adjunct to binary electronic digital computers / $440 to $985 / 18 MARCHANT CALCULATORS, INC., *a I Marchant Binary-Octal Calculator / DESCR: fully automatic multiplication and division directly performed in both binary and octal number systems; conversions between decimal number system and octal or binary number systems readily made with complete display of result / USE: adjunct to binary electronic digital computers / $2950 / 18 Monroe Calculating Machine Co. / Desk calculating machinery for adding, calculating, and bookkeeping 118 OLIVETTI CORP. OF AMERICA, 580 Fifth Ave., New :York 36, N. Y. / Desk-type Printing Calculators, single and duplex registers I DESCR: Olivetti Printing Calculator automatically adds, subtracts, multiplies, divides, discounts and prints answers as well as components of problems on tape. Tetractys, dual register printing calculator with memory-unit, high speed 12-13 capacity, inter-operation transfer of calculations / USE: used in all figurework where accuracy of a printed proof is required / Olivetti Printing Calculator $600 + F. E. T. ; Tetractys $9?5+ F. E. T. I 18 REMINGTON RAND UNIVAC DIVISION, SPERRY RAND CORP., 315 4th Ave., New York 10, N. Y. / Model 99 Calculator that prints / DESCR: automatic multiplication and division; 10-key touch addition and subtraction; automatic credit balance / USE: for figurework where printed proof of computations is desired I $685 to $785 / 18 19. DIFFERENTIAL ANALYZERS 18. DESK CALCULATORS Clary Multiplier Corp. / desk calculators / 18 Fabrica Addizionatrice Italiana SS, Italy / desk calculators to add, subtract, multiply, divide, print / 18 Facit, Inc. / Facit Calculator, ESA-O I DESCR: size, 7 -7/8" x 10-5/8" x 7"; wt., 26-1/2 lbs. ; fully automatic; adds, divides, subtracts, multiplies; capacities, 9 x 8 x 13; electric clearing; 10-key system; portable; made of fine Swedish steel/USE: for all office calculations, one hand operation / $495 plus tax / 18 - 69- AUTONETICS, a Div. of North American Aviation, Inc., 9150 E. Imperial Highway, Downey, Calif. / NATDAN Digital Differential Analyzer I DESCR: serial, rectangular integration, 93 integrator computer. 34.4 separate complete solutions per second. Memoryrotating magnetic disc, 32 bitsl integrator; 28 bits number length / - / 19 BENDIX COMPUTER DIV., BENDIX AVIATION CORP., 5630 Arbor Vitae St., Los Angeles 45, Calif. / Dig- .ital Differential Analyzer (DA-1) / DESCR: 108 integrator digital differential analyzer operations in conjunction with the G-15D General Purpose Digital Computer, with input from G-15 output equipment Computers and Automatidn 19 output to graph plotter ~ or G-15 output equipment / USE: provides programming of the solution of problems which can be written in form of ordinary differential equations / $13,700 / 19 Computer Co. of America / differential analyzers / 19 Goodyear Aircraft Corp. / Goodyear electronic differential analyzers / 19 Litton Industries / "Litton 20" Digital Differential Analyzer / DESCR: 20 Integrator Digital Differential Analyzer; speed, 60 iterations per sec; accuracy one part in 250, 000; graph plotter and curve followers available; small size / USE: easily solve linear and non-linear differential equations, general functions, etc. / approx. $10,000 / 19 The National Cash Register Co., Electronics Div., Calif. / decimal digital differential analyzers / 19 20. DIGITAL COMPUTERS Aeronutronic Systems Inc. / Digital computing machiery / 20 Aircraft Armaments, Inc. / Digital computers /20 ALLEGANY INSTRUMENT CO., INC., 1091 Wills Mountain, Cumberland, Md. / Type K-1 Ballistic Computer (Analog and digital) / DESCR: The K-1 computes data of any phenomenon that can be converted to an electrical signal. It presents this data both on the front panel and on paper tape or mM cards, and includes: action time, force, ignition delay, peak values of force, total impulse (area beneath forcetime curve), etc. / USE: The K-1 is connected to the pick-up devices and when the phenomenon is initiated it automatically presents 12 channels of information / $16, 810 / 20 ALWAC CORP., 13041 S. Cerise, Hawthorne, Calif. / Electronic, General Purpose, Digital Computer: ALWAC ID-E / DESCR: drum computer, decimal alphabetic, hexadecimal; adds, subtracts, multiplies, divides; calculates, organizes, makes logical decisions; 8192 word storage; problems of any complexity, in any sequence; flexowriter, high speed reader, card converter, magnetic tape, motorized punch, teletype punch; very reliable / USE: business, industrial, financial, governmental problems / $48,000, plus auxiliary units / 20 American Machine & Foundry Company, Electronics Div. / Digital computers / 20 Analogue Controls, Inc. / digital computers / 20 Argonne National Laboratory / Avidac and Oracle Digital Computers / 20 Arma, Div. of American Bosch Arma Corp. / Digital computers / 20 Atomic Instrument Co. / Model 580, High Speed Data Analyzer / 20 THE AUSTIN CO., 76 Ninth Ave., New York 11, N. Y. / Digital Computers, special purpose / special purpose computers for applications where general purpose computers are too costly or do not meet requirements / USE: by business and industry for high speed computations / - / 20 -70 - 20 AUTONETICS, a Div. of North American Aviation, Inc., 9150 E. Imperial Hwy, Downey, Calif.. / RECOMP general purpose transistor digital computer / DESCR: internally pro~ammed, transistor general purpose digital computer with large capacity but very small size. Portable, 4096 random access memory (magnetic disk), paper tape input and output / USE: general computational work for industry or the military either in the field or laboratory. Can handle business type problems. / In the viCinity of $100, 000 / 20 Avion Instrument Co., / Digital computing machinery / 20 Bekey Electric Co., Inc. / watt servomotor /20 Bell Punch Co., Ltd., England / digital computers / 20 Bell Telephone Laboratories, / Bell general purpose computers / 20 BENDIX AVIATION CORP., RESEARCH LABORATORIES DIVISION, P. O. Box 5115, Detroit 35, Mich. / Digital computers -- see "Analog Computers" / 20 Bendix Aviation Corp., Pacific Division / Digital computers / 20 BENDIX COMPUTER DIV., BENDIX AVIATION CORP., 5630 Arbor Vitae St., Los Angeles 45, Calif. / DA-1 Digital Differential Analyzer Attachment to G-15 Computer -- see "Differential Analyzers" / 20 BENDIX COMPUTER DIV., BENDIX AVIATION CORP., *a / General Purpose Computer G-15 / DESCR: stored program, general-purpose computer with input and output of punched paper tape, typewriter, magnetic tape and punched cards. Also, may be combined with Digital Differential Analyzer Accessoryand graph plotter. / USE: provides solutions for mathematical problems; also can perform control functions. I $44,800 without DDA Accessory; DDA Accessory, $13, 700 / 20 Birkbeck College, University of London / ARC, APEXC, and SEC digital computers; electronic digital computers /20 BJ Electronics, Borg-Warner Corp. / Digital data systems / 20 Burroughs Corp., Computer Section / Burroughs E101 Electronic Computer / 20 Burroughs Corp., Electronic Instruments Div., / Electronic computing equipment; large automatic digital computer UDEC; and built to order, small automatic digital computer, E101/ 20 Carbide and Carbon Chemicals Company / Numerical analysis using digital computers / 20 Century Engineers, Inc. / Digital computers / 20 Collins Radio Co. / Digital computers / 20 Commonwealth Scientific and Industrial Organization, Australia / Maker of csmo Mark I electronic digital computer / 20 Computer Control Co., Inc. / Special Purpose Digital Computers / 20 COMPUTING DEVICES OF CANADA, LTD., P. O. Box 508, Ottawa 4, Ont., Canada / Custom built digital computers / 20 Corbin Corp. / Digital computers / 20 DATAMATIC CORP., 151 Needham St., Newton Highlands 61, Mass. / Electronic computer systems for general accounting and data processing operations, and for general scientific applications / 20 ~o Buyers' Guide Daystrom Instrument Co. / Digital computers / 20 Devol Research Co., / Digital computers / 20 Digitronics Corp. / Digital systems and components / 20 ~ducational Research Corp. / Digital computers / 20 ELECTRODATA DIVISION OF BURROUGHS CORP., 460 Sierra Madre Villa, Pasadena, Calif. / DATATRON automat ic digital computer and auxiliary electronic data processing machines / DESCR: 4, 000 words magnetic drum storage, 80 additional words quick-access drum storage; 10 decimal digits and sign; paper tape, CARDATRON complete alpha-numeric punch card operation, DATAFILE single or multiple magnetic tape units; range 400, 000 to 2, 000, 000 words auxiliary storage per unit / USE: business applications, mathematical, scientific, engineering computation / $140, 000 to $250, 000 approx. or lease with option to buy / 20 Electronic Computer Div. of Underwood Corp. / six types of electronic digital computers (ELECOM "50", 100, 120A, 125, 200 and a data handling computer) /20 Electronic Control Systems, Inc. / "Digimatic" High Speed Digital Computer / DESCR: can interpolate blue print data, put this data on magnetic tape, instruct the machine tool to automatically mill the designated piece. Makes use of playback commands through a servome chanism / USE: automation of machine tools / - /20 Elliott Bros. (London) Ltd., / Elliott 402, 403, electronic digital computers / 20 The English Electric Company Ltd. / Deuce / DESCR: a universal electronic digital computer using punched card input and output. Quick access storage by mercury delay lines and auxiliary storage by magnetic drum. Total storage 402 and 8192 words respectively, of 32 bits, Binary scale / USE: serially / $150, 000 / 20 Feedback Controls, Inc. / Digital computers / 20 FERRANTI ELECTRIC, INC., 30 Rockefeller Plaza, New York 20, N. Y. / PEGASUS / DESCR: mediumsized general purpose machine; magnetic drum main store, capacity of 4096 words of 39 bits each; bit rate, 300 KC; multiplication, 2 milliseconds; division, 5 milliseconds; machine constructed of standard plug-in packages which may be readily replaced for maintenance; modified single address code with comprehensive range of orders; punched tape input and output; extensive range of programs and subroutines are available / USE: SCientific, engineering, and business applications / $200,000 / 20 FERRANTI ELECTRIC, INC., *a / MERCURY / DESCR: high speed general purpose machine with automatic floating point operation; magnetic core computing store (rapid memory), capacity 40, 960 bits; magnetic drum main store (intermediate memory), capacity 750,000 bits; additional delay line B registers for modification of instructions; add time, 180 microseconds; multiply time, 300 microseconds; comprehensive library of routines available / USE: scientific engineering, business computing / $400,000 / 20 Ferranti Electric Ltd., Mount Dennis, Toronto, Ont., Canada / Digital computers / 20 General Automatics, Inc. / Digital computers / 20 -71 - 20 General Electric Co., Johnson City, N. Y. / Digital computers / 20 Gilmore Industries / Digital computers / 20 Hewlett-Packard Co. / Digital computers / 2(}HUGHES RESEARCH AND DEVELOPMENT LABORATORIES, Culver City, Calif. / small powerful automatic electronic digital computers for airborne use / 20 Imperial College, Mathematics Dept. / Digital computer / 20 INTERNATIONAL BUSINESS MACHINES CORP., 590 Madison Avenue, New York 22, N. Y. and elsewhere / IBM 650 Magnetic Drum Data Processing Machine / DESCR: the units of the basic 650 are: a Console Unit which contains the magnetic drum, calculating unit, and control console; a Card Read Punch with which information is entered or extracted in punchedcard form, and a ,Power Unit. Up to 20, 000 alphanumeric characters of storage for data and operating instructions are available with the basic 650. Additional units can be incorporated into a 650 system to provide magnetic tape input and output, printer output, magnetic core storage, and disk storage with random access and direct interrogation (IBM 650 RAMAC) / USE: the 650 is a general-purpose data processing machine which is used for commercial and scientific computing problems / Monthly rental $3,750 and up. Selling price $205,900 and up /20 INTERNATIONAL BUSINESS MACIfiNES CORP., *a / IBM 604 Electronic Calculating Punch / DESCR: a 1400 tube general-purpose computer that reads problem data from IBM punched cards at a constant speed of 6, 000 cards per hour and can go through as many as 60 separate steps to obtain the solution to a single problem / USE: the 604 is widely used in science, engineering, and business / Monthly rental is $550 and up. Selling price is $33,850.00 and up /20 INTERNATIONAL BUSINESS MACHINES CORP. *a / mM 607 Electronic Calculator / DESCR: a larger version of the IBM 604 which is able to perform and check 14, 000 computing operations a minute. The 607' s memory capacity makes it possible to use intermediate calculated results as well as original data in solving a problem / USE: the 607 is used to handle in one o~ration the majority of commercial or scientific calculations ordinarily requiring multiple machine operations / Monthly rental is $800950. Selling price is $47,000 - 55,300 / 20 INTERNATIONAL BUSINESS MACHINES CORP., *a/ IBM 608 Transistor Calculator / DESCR: uses transistors in place of vacuum tubes which makes possible a 50% reduction in computer-unit size and a 90% reduction in power requirements over a comparable IBM vacuum-tube model calculator. The 608 can perform 4, 500 additions a second. Its internal storage is made up of magnetic cores / USE: for commercial and scientific problems / Monthly rental $2,250. 00. Selling price $120, 800.00 / 20 INTERNATIONAL BUSINESS MACIIl1€S CORP•• *a / IBM 305 Random Access Memory Accounting 20 COmputers and Automation Machine (RAMAC) / DESCR: principal components are: disk memory unit, printer, card punch, power unit, processing unit, and console. Heart of the machine is the disk memory unit which consists of 50 magnetic metal disks. Data is entered onto or extracted from the disks by a rapidly-moving arm. The disk memory unit has a storage capacity of 5, 000, 000 digits. The 305 has arithmetical and logical processing ability, punched-card input, and both punched-card and printed output / USE: utilizing continuous, or "in-line" accounting, the 305 RAMAC is ideal for all types of business accounting / Monthly rental $3,200. Selling price $224,000. / 20 INTERNATIONAL BUSINESS MACHINES CORP., *a / The mM 704 Electronic Data Processing Machine / DESCR: large-scale electronic data processing system made up of inter-connected units. The heart of the 704 system is its high-speed magnetic core storage. Any word in core storage can be located and put into use in a few millionths of a second. Core storage is supplemented by magnetic drums and magnetic tapes. The 704 can perform 40, 000 additions .or subtractions or 5, 000 multiplications ,!r divisions of ten-digit numbers in one second / USE:' primarily for solving complex scientific and engineering problems / Monthly rental $25, 900 and up. Selling price $1,417,500 and up / 20 INTERNATIONAL BUSINESS MACHINES CORP., *a / mM 705 Electronic Data Processing Machine / DESCR: large-scale electronic data processing system made up of inter-connected units. It features 20, 000 pOSitions of magnetic core "memory" and utilizes magnetic drums and magnetic tapes for additional storage. The 705 can make 8,400 additions or 1,250 multiplications per second. A 705 Model IT with 40, 000 positions of magnetic core storage also is available / USE: the 705 is used primarily for handling business problems / Monthly rental $24, 550 and up. Selling price $1, 334, 650 and up / 20 INTERNATIONAL BUSINESS MACHINES CORP., *a / mM 709 Electronic Data Processing Machine / DESCR: the latest addition to mM's 700-series of electronic data processing machines. It can perform up to 42, 000 additions or subtractions, or 5, 000 multiplications or divisions, each second. The 709's magnetic core storage has a capacity of over 327, 000 decimal digits. A Data Synchronizer ,which ' permits the system to read, write, and calculate simultaneously also is incorporated. The 709's tape units permit information being written on magnetic tape to be automatically checked for accuracy during the writing process / USE: the new 709 is the first equipment of its capacity that can work with equal facility on both commercial and scientific or engineering problems / Monthly rental $47, 500 and up. Selling price $2,653,150 and up / 20 Jacobs Instrument Co. / JAINCOMP Di~ital Computers / DESCR: compact, high -speed digital computers for both general purpose business use and for real time (control) applications / USE: in business and in real-time (control) / varies, depending on requirements / 20 20. LABORATORY FOR ELECTRONICS, INC., 75 Pitts St., Boston 14, Mass. / DIANA magnetic drum data processing machine / DESCR: General purpose, stored-program computer; variable word, block and record lengths. Magnetic cores and high speed drum for immediate access memory and. programs. Magnetic drums (any number) for bulk storage; each drum'stores approximately 2,000,000 alphanumeric characters; 1/6 second random access to entire fUe. Paper and magnetic tape, punched card, and typewriter inputs; same outputs plus line printer. Scalable capacity. 1 USE: general purpose, with special emphasis on applications requiring extensive quick random access / price varies with capacity; $500, 000 range / 20 LABORATORY FOR ELECTRONICS, INC., *a / TIM magnetic drum data processing machine / DESCR: medium priced general purpose stored-program computer utilizing random access magnetic drums exclusively for bulk storage; numeric information only; 750,000 decimal'digits per drum; up to 10 drums; variable word length, adjustable record length; input from punched cards, tags, tape, or directly from keyboard; output via typewriter, paper tape, punched card / USE: account posting, particularly in inventory control and deposit accounting / $60, 000 to $200, 000 / 20 Lavoie Labs, Inc. / Digital computers / 20 Leemath, Inc. / Digital computers / 20 Librascope, Inc. I LGP-30 General Purpose Computer / 20 Litton Industries of Maryland, Inc. / Digital computers / 20 Litton Industries, .-- see "Digital Differential Analyzerfl'/20 MASSACHUSETTS INSTITUTE OF TECHNOLOGY, Digital Computer Laboratory, 211 Mass. Ave., Cambridge 39, Mass. / "Whirlwind" electronic digital computer / 20 The W. L. Maxson Corp. / digital computers for fire control, navigation, etc. / 20 Monrobot Corp. / automatic electronic digital computers / 20 (cont'd on page 73) *-------------------*-------------------* SPECIAL ISSUES. OF "COMPUTERS AND AUT.O.MATioN'" , The June issue of "Computers and Automation" in each year is a special issue, '~e Computer Directory", containing a ''Roster of Organizations in the Computer Field" and a ''Buyers' Guide for the Computer Field: Products and. Services for Rent or Sale". • •• Included in the subscription i • •• but if bought separately, price $6.00. From time to time we publish an extra issue, entitled 'Who's Who in the Computer Field"; the last one was in March 1957, 212 pages long, with names and addresses and some information about over 12,000 computer people. • •• Not included in the subscription; price $17.50. -72 - BUYERS' GUIDE (cont'd from page 72) 20 Buyers' Guide MONROE CALCULATING MACHINE CO. (Monrobot Laboratory), Orange, N. J. / Electronic Calculator (Monrobot VI) digital electronic calculator; double arithmetic processing units; equipped with Monroe "Automatic Internal Diagnosis" of errors, magnetic drum, capacity 100 numbers of 20 decimal digits with algebraic sign, and 200 orders, data and programs entered by manual keyboard or perforated tape; result printed "on electric typewriter or produced on perforated tape, contents of magnetic drum may be transferred to perforated tape or vice versa / USE: engineering and commercial calculation / - / 20 MONROE CALCULATING MACHINE CO. -- See Computer Components Nader Mfg. Co. / digital counters / 20 The N~tional Cash Register Co., Electronics Div. / Digital Computers / CRC 102-A and 102-D general purpose computers and other computers / 20 National Physical Laboratory, Control Mechanisms and Electronic s Division, England / digital computers / 20 New London Instrument Co., Inc. / digital computers / 20 Norden Laboratories / digital computers / 20 NUCLEAR DEVELOPMENT CORP. OF AMERICA, 5 New St., White Plains, N.. Y. / Special Purpose Computers / design and construction of computers to meet specific scientific, industrial, commercial, computing, and data handling problems / special purpose / varies / 20 NUCLEAR DEVELOPMENT CORP. OF AMERICA, *a / Circle Computer designs and sales / 20 Oerlikon Tool & Arms Corp. of America / digital computers / 20 Philco Corp., Government & Industrial Div. / TRANSAC ~lectronic (Digital) Computers / DESeR: employs Philco direct-coupled transistors and techniques throughout, thus eliminating numerous components familiar in vacuum tube techniques / USE: TRANSAC arithmetic units are for use as the core of any modern computer design / $25, 000 to $500,000 / 20 Radiation Counter Lab., Inc. / digital cQmputers/20 Ram Meter, Inc. / digital computers / 20 Ramo-Wooldridge Corp. / digital computers and components / 20 The Rand Corp. / digital computers / 20 J. B. Rea Co., Inc. / READIX Digital Computer / $79,000/20 REMINGTON RAND ~IVAC DIV., SPERRY RANDI CORP., 315 4th Ave., New York 10, N. Y. / The Univac System and Univac n / DESCR: large scale general purpose digital electronic computing system; built-in self-checking features; employs a single address system and 1000 words of mercury delay line storage in Univac I; 2, 000 up to 10, 000 words of magnetic-core storage in Univac ll; magnetic tape units provide supplementary storage and fast input-output facUities; operate on stored programs employing 63 instructions and 45 different arithmetic and logical operations; auxiliary equipment for data conversion; processed data put out in -73 - 20 printed form, punched cards, or punched tape / USE: scientific, commercial, business, industrial, government, etc. / - / 20 REMINGTON RAND 'UNIVAC DIV., SPERRY RAND CORP., *a / Univac File Computer Systems / DESCR: capacity of 1,800,000 digits or characters of internal storage file information; up to 31 inputoutput devices may be connected to the system for simultaneous "on-line" service; programming may be done externally by a changeable control panel; internally by stored program or a combination; external program is non-sequential; magnetic drum general storage unit for data, program step instructions, or both; random access type, 2 size drums available / USE: commercial accounting purposes with large amounts of data but relatively short computations / $2085 to $17, 000 monthly rental; $125, 000 to $1, 020, 000 sale; .prices subject to tax/20 REMINGTON RAND UNIVAC DIV., SPERRY RAND CORP., 1902 Minnehaha Ave., St. Paul W4, Minn. / Univac Scientific Computer Model 1103A / general purpose digital computer, two address logic, large storage capacity, high operating speed, versatile programming; 16,384 magnetic-drum registers, 4096 magnetic-core registers; all registers individually addressed, directly accessible; internally stored programs capable of self-modification; 41 different arithmetic and logical operations; parallel co~putation on" words of 36 binary digits; optional features and equipment are; floating-point, additional magnetic-core storage for 12, 288 words, ten magnetic-tape units with variable format feature for supplementary storage and input-output, 600 line a minute printer, off-line and on-line operation / USE: SCientific, engineering, computing / $895,000; available on rental basis apprOximately $21, 000 a month / 20 REMINGTON RAND UNIVAC DIV., SPERRY RAND CORP. -- see "Data Processing Machines" / 20 Saunders & Co. / digital computing ~achinery / 20 Servo Corp. or America / digital computers / 20 Soci~~ d'Electronique et dtAutomatlsme, France / digital computers and components. General purpose digital computer CAB 2,022/ 20 SOROBAN ENGINEERING, INC., Box 117, Melbourne, Fla. / Electronic digital computers of the FLAC and SEAC type / 20 Stromberg-Carlson-San Diego / Computer Read-Out /20 Sylvania Electric Products, Inc., Radio and Television Div. / digital computers, using printed circuit techniques / 20 SYLVANIA ELECTRIC PRODUCTS, INC., ELECTRONIC SYSTEMS DIVISION, 100 First Ave., Waltham 54, Mass. / large electronic digital computers on contract / 20 Technitrol Engineering Co. / digital computer s and data processing machines / 20 THE TELEREGISTER CORP., 445 Fairfield Ave., Stamford, Conn. / Digital special purpose computers as a component of complete data processing systems / 20 20 COmputers and Automation Union Switch and Signal Co., Div. of Westinghouse Airbrake / digital computers / 20 U. S. Naval Research Laboratory, Washington 25, D. C. / NAREC digital computer / 20 University of illinois / digital computer / 20 University of Manchester, Mathematical Laboratory, Manchester, England / digital computer / 20 Valor Electronic Components Co. / digital computers/20 Vectron, Inc. / special computers for military applications, etc. / 20 Waldorf Instrument Corp. / digital computers / 20 Wallind-Pierce Corp. / digital computers / 20 Wang Laboratories / Electronic Digital-Analog Differential Computer (Wedilog) / - / USE: as a digital computer / $19, 500 and up / 20 The George Washington Univ., Logistics Research Project / ONR electronic digital computer with magnetic drum memory / 20 Westronics, Inc. / digital computers / 20 Wiancko Engineering Co. / digital ballistics analyzer computer / 20 ZUSE KOMMANDIT-GESELLSCHAFT, Neukirchen, Kreis Heunfeld, German Federal Republic / 222 Automatic electronic digital computer / DESCR: medium-sized, magnetic drum, magnetic core store, serial with both fixed point and floating point operation, teletyper for input and output / USE: in scientific engineering or commercial problems / $45,000/20 21. DIGITAL-TO-ANALOG CONVERTERS Avion Division-Alexandria, (formerly ACF Electronics, Inc.) Div., of ACF Industries, Inc. / ACF Model 1002 Decoder / 21 BECKMAN INSTRUMENTS, INC., SYSTEMS DIVISION, 325 N. Muller Ave., Anaheim, Calif. / Digital-toAnalog Converters - see "Data Processing Machinery" / 21 BENDIX AVIATION CORP., RESEARCH LABORATORIEs DIVISION, P. O. Box 5115, Detroit 35, Mich. / Digital-to-Analog Converters -- see "Analog Computers" / 21 EPSCO, INC., 588 Commonwealth Ave., Boston 15, Mass. / DATRAC Model B / DESCR: High speed reversible digital-to-voltage converter. Straight binary or binary coded decimal output in both serial pulse and semi-static parallel form. No operator adjustments required. / USE: Automatic control; data reduction for visual or computer processing. Quick look systems / - / 21 Kearfott Co., Inc. / digital-to-analog converte rs /21 PACKARD-BELL ELECTRONICS CORP., 12333 W. Olympic Blvd., Los Angeles 64, Calif. / digitalto-analog converters / 21 RADIATION, INC., P. O. Box 37, Melbourne, Fla. / digital-to-analog converters / 21 Wallind-Pierce Corp. / digital-to-analog converters/21 -74 - 22 22. DIODES (Computer Types) Allgemaine Elektricitaets-Gesellschaft, Germany / Germanium diodes / 22 Amperex Electronic Corp. / crystal diodes / 22 CBS-HYTRON, Lowell, Mass. / diodes / 22 CBS International / diodes / 22 Hughes Products / diodes / 22 International Rectifier Corp. / Germanium diodes, selenium diodes, silicon diodes, selenium photocells, selenium sun batteries / 22 INTERNATIONAL RESISTANCE CO., 401 N. Broad St., Philadelphia 8, Pa. / diodes / 22 National Bureau of Standards, Data Processing Systems Division / diodes / 22 National Fabricated Products, Inc. / diodes: silicon type / 22 National Semiconductor Products / Silicon Junction Diodes / very rugged, hermetically sealed, silicon alloy junction diodes / $2 to $13 / 22 Pacific Semiconductors, Inc. / diodes / 22 Philco Corp. / X-Band Mixer Diode / Hermetically sealed point contact germanium type / USE: wide band mixer applications / - / 22 RADIO CORP. OF AMERICA, TUBE DIV., 415 S. 5th st., Harrison, N. J. / diode s / 22 RADIO CORP. OF AMERICA, SEMICONDUCTOR DIV. , Somerville, N. J. / Germanium diodes for computers / 22 RADIO RECEPTOR CO., INC., 240 Wythe Ave., Brooklyn 11, N. Y. / Germanium Diodes / DESCR: high conductance, gold bonded, hermetically sealed glass diodes / USE: transistor biasing, receiving equipment, computers, magnetic amplifiers, and other applications / - / 22 RAYTHEON MANUFACTURING CO., Receiving and Cathode Ray Tube Ope·rations, 55 Chapel St., Newton 58, Mass. / TranSistors, Semiconductor Diodes / DESCR: silicon and germanium transistors, silicon rectifiers / USE: computer and related uses / - / 22 SCHWEBER ELECTRONICS, 122 Herricks Road, Mineola, N. Y. / diodes / 22 SYLVANIA ELECTRIC PRODUCTS, INC., 1740 Broadway, New York 19, N. Y. / Electronic Tubes, Diodes, Transistors / DESCR: Semiconductor diodes and transistors, vacuum tube type diodes, amplifying electronic tube s / USE: in clipping, clamping, gating, and pulse amplifier circuits / $1 to $5 / 22 Sylvania Electric Products, Inc., Radio and Television Div. / subassemblies of diodes and triodes / 22 Sylvania Electric Products, Woburn Div. / diodes / 22 Thermosen, Inc. / diodes / 22 Transistor Products, Inc. / diodes / 22 Transitron Electronic Corp. / diodes / 22 United States Dynamics Corp. / silicon and germanium diodes / 22 23 Buyers' Guide ~ 23. ELECTRIC TYPEWRITERS, CONTROLLED American Automatic Typewriter Co. / Autotypist / 23 Benson-Lehner Corp. / Electrotyper (Model B) / 23, Coxhead Corp. / varitypers / 23 ' ELECTRODATA DIVISION OF BURROUGHS CORP.-, see "Digital Computers" / 23 FRIDEN CALCULATING MACHINE ,CO., INC., San Leandro, Calif. / Flexowriters / DESCR: electric typewriting machine, standard electric keyboard, code selector, code translator, tape punch, and tape reader, all integrated in one machine; will punch, read, duplicate, correct paper tape; 5, 6, 7, 8 channels optional / USE: to prepare documents at the source, and produce as a by-product punched tapes with complete selected information; the tapes in turn are used to actuate other tape operated machines, such as communications equipment, address plate embossing machines, tape-to-card punches, computers, etc. / $1850 to $3820 (taxes not included) / 23 INTERNATIONAL BUSINESS MACHINES CORP., 590 Madison Ave., New York 22, N. Y. / mM 884 Typewriter Tape Punch I DESCR: creates a·'perfQrated tape simultaneously with the typing operation--/ USE: these perforated tapes control the mM Tapeto-Card Punch for automatic conversion to punched cards / Monthly rental $'15. Selling price $3,750 123 INTERNATIONAL BUSINESS MACHINES CORP., *a I IBM Typewriter Card Punch (types 824 and 826) / DESCR: both the 824 and the 826 prepare punched cards for accounting use as an automatic by-product of typewriting operations. Each machine consists of two units, an mM electric typewriter and a printing (826) or non-printing (824) card punch I Monthly rental $95 - $115 I Selling price $4,700 $5,900 I 23 Robotyper Corporation / automatic typing equipment that can be associated with any electric typewriter, using a record roll pneumatically operated I 23 SOROBAN ENGINEERING, INC., Box 338, Melbourne, Fla. I Automatic Tabulators / DESCR: specialized coding and de-coding devices / USE: in control of electronic tabulator s and similar printing device s I $1600 to $4900 / 23 Underwood Corp. I Underwood Servotyper / DESCR: controlled electric typewriter; keys are operated. by solenoids triggered by electrical signals I USE: automatic recording of digitized and alphabetic data / - / 23 Underwood Corp. / Electric typewriters, used with cqmputers / 23 24. ELECTRONIC TUBES (Computer Types) 24 General Electric Co., Tube Dept., Schenectady, N. Y. / G. E. Computer Tubes I 24 General Electric Co., Tube Dept., *a I G. E. Fivestar Computer Tube / 24 National Union Electric Corp. I electron tubes I 24 RAYTHEON MANUFACTURING CO., Receiving and Cathode Ray Tube Operations, 55 Chapel St., Newton 58, Mass. I Electron Tubes I DESCR: reliable miniature and subminiature tubes, low drain fqamentary subminiature tubes, other special tube types I USE: computer and related uses / - I 24 SYLVANIA ELECTRIC PRODUCTS, INC., 1740 Broadway, New York 19" N. Y. / Computer products: Twin-Triode tubes, Multigrid tubes, Decade Counter tubes I $1 to $14 / 24 24.5. FACSIMILE EQUIPMENT ADDRESSOGRAPH-MULTIGRAPH CORP. 1200 Babbitt Rd., Cleveland 17, Ohio I Electronic Facsimile Printer I DESCR: scans typed data contained on unit punched card records and prints onto ordinary continuous paper I 24. 5 Alden Electronic and Impulse Recording Equipment Co. I Facsimile recording equipment I 24.5 AMPEX CORP. t 934 Charter st., Redwood City, Calif: I TV recording tape, recording equipment I 24.5 Barker & Williamson, Inc. I facsimile equipment, trans. equipment I 24.5 Brick Electronic Equipment Co. / facsimile equipment 124.5 J. H. Bunnell & Co. I facsimile, recording equipment 124.5 Haloid Co. / Sensitized paper / 24.5 Hogan Laboratories / facsimile and graphic recording / 24.5 Times Facsimile Corp. I Receiving equipment, sensitized paper, transmitting equipment I 24.5 Western Union Telegraph Co. I sensitized paper I 24.5 Westrex Corp. / sensitized paper, receiving equipment 124.5 t 25. FffiE CONTROL EQUIPMENT Belock Instrument Corp. I bombing and gun fire control computers / 25 Farrand Optical Co. / gunfire control apparatus, rangefinders, optical and electrOnic sighting equipment, automatic trackers, infrared search and scanning systems / 25 FORD INSTRUMENT C9. DIV. OF SPERRY RAND CORP., 31-10 Thomson Ave., Long Island City 1, N. Y. / Gunfire control apparatus; analog and digital computers and components, missile guidance systems, magnetic amplifiers, servo motors, differential and integrator elements. instruments for shipborne and airborne armament and navigational t Amperex Electronic Corp. I Electron tubes /24 CBS-HYTRON, Div. of Columbia Broadcasting System, Inc., 100 Endicott St., Danvers, Mass. I Electron tubes and semiconductors for computer and other uses I 24 -75 - Computers and Automation control; nuclear reactors, computers, systems, drives, and precision components / 25 N. V. HOLLANDSE SIGNAALAPPARATEN, Hengelo (0), Netherlands / Radar Fire Controls Systems and their computers / 25 MONROE CALCULATING MACHINE CO. - see "Computer Components'Y 25 Reeves Instrum~nt Corp. / fire control equipment / 25 126. INFORMATION RETRIEVAL MONROE CALCULATING MACHINE CO. - see "Computer Components'/ 26 Zator Co. / Zatocoding System / DESCR: a digital technique for indexing scientific information and retrieving it by use of a card sorting machine / USE: for retrieval of scientific reports and literature in collections of 1, 000 items and up / monthly rental $45 plus initial $500 professional installation charge /26 K 27. KEYBOARDS Benson-Lehner Corp. / Serial Input Keyboard (Keypak) / 27 MONROE CALCULATING MACHINE CO. - see "Computer Components" / 27 SOROBAN. ENGINEERING, INC., Box 338, Melbourne, Fla. / Coding Keyboards / DESCR: specialized and custom-made keyboard units for use in automatic control applications / - / $3 90 to $850 / 27 28. LINE-A-TIME PRINTERS Anelex Corp. / ANelex Synchroprinter / 28 CONTROL INSTRUMENT CO., INC., 67 35th St. , Brooklyn, N. Y. / 900-line per minute tabulator /28 POTTER INSTRUMENT CO., INC., 115 Cutter Mill Rd., Great Neck, N. Y. / Magnityper / DESCR: High-speed line-at-a-time printers using magnetic core of Magnistor stQ.rage; available in 20, 40, 60, 80, 100 or 120 column sizes. r Printing rates: alphanumeric, 10 lines per .. second; numeriC, 15 lines per second / USE: digital computer output data processing systems / $40,000 to $50,000/ 28 Shepard Laboratories / High Speed "TYPER" / 28 -76 - 29 29. LOGICAL CmCUITS (For Digital Computers) American M~hine & Foundry Co., Electronics Div. / logical circuits / 29 Burroughs Corp., Electronic Instruments Div. / pulse control equipment / 29 Computer Control Co., Inc. - see "Arithmetical Circ.uits" / 29 Librascope, Inc. (formerly The Minnesota E;lectronics Corp), Burbank Div. / MagnetiC DECISION Elements / DESCR: magnetic digital computing components expressing logical properties / USE: arithmetical or control circuits / sole as components or with customt designed equipment / 29 MONROE CALCULATING MACHINE CO. - see "Computer Components" / 29 30. MAGNETIC CORES (Computer Types) Aerovox Corp. / magnetic cores, ferrites, toroids;' 30 Alden Products Co. / magnetic storage cores, toroidal core winding / 30 Allen-Bradley Co. / cores, ferrites / 30 American EI~ctro Metal Corp. / magnetic cores / 30 American Lava Corp. / cores, ceramic / 30 Amperex Electronic Corp. / magnetic cores / 30 THE ARNOLD ENGINEERING CO., Marengo, ill. / magnetic cores and other magnetic material for computer components, etc. / 30 BECKMAN INSTRUMENTS, INC., SYSTEMS DIV. , 325 N. Muller Ave., Anaheim, Calif. - see "Data Pro~essing Machinery" / 30 Burroughs Corp ... Electronics Instruments Div. / magnetic cores / 30 Canadian Westinghouse Co., Ltd. / magnetic cores / 30 Carstedt Research, Inc. / magnetic cores / 30 Columbia Carbon Co. / magnetic cores /' 30 Henry L. Crowley & Co., Inc. / magnetic cores / 30 Custom Components, Inc. / magnetic cores / 30 Daystrom Instrument Co., Archbald, Pa. / magnetic cores / 30 DX Radio Products Co. / magnetic cores / 30 EPSCO, INC., 588 Commonwealth Ave., Boston 15, Mass. / Magnetic core storage elements / USE: frequency or pulse rate transformations; as shift registers in magnetic core buffer storage units / - / 30 Ferricore, Inc. / magnetic cores / 30 Ferroxcube Corp. of America / Ferrite core materials, including pot cores, cup cores, recording heads, and microminiature toroids with square hystereSiS loop; Magnadur permanent magnet materials / 30 GENERAL CERAMICS CORP., Keasbey, N. J. / Ferrites and Technical Ceramics / Ferrites for magnetic cores, memories, toroids, transformers, antennas, etc.; Technical Ceramics for insulation and seals; Magnetic Memory Cores, Magnetic Memory Planes, 30 Buyers' Guide standard and custom wired; Ferrites for pulse transformer and recording heads for computer components; Ferrite Cores; Technical Ceramics, Insulator s, etc. / - / price variable / 30 General Electric Co., Syracuse, N. Y. / magnetic cores / 30 Gramation Instrument Co. / magnetic cores / 30 Indiana Steel p'roducts Co. / magnetic cores / 30 International Electronics Corp: / magnetic cores / 30 International Telemeter Corp. / ferrite storage and recording head cores. Research and manufacturing in high capacity photoscopic storage devices / USE: in computer memories / cores from 2¢ to $1. 00/30 Isolantite Mfg. Corp, / magnetic cores / 30 Lapp Insulator Co., Inc. / magnetic cores, resistors /30 Leonard Electric Products Co., Inc. / magnetic cores /30 Magnetic Core Corp. / magnetic cores / 30 Magnetic Metals Co. / magnetic cores / 30 Magnetic Research Corp. / magnetic cores / 30 Magnetics, Inc. / metallic cores of high magnetic permeability / 30 Maryland Lava Co. / magnetic cores / 30 Melpar, Inc. / magnetic cores / 30 Microwave Assoc., Inc. / magnetic cores / 30 ~icrowave Engineering Labs., Inc. / magnetic cores / 30 Minnesota Mining & Mfg. Co. / magnetic cores / 30 Moloney Electric Co. / magnetic cores / 30 MONROE CALCULATING MACHINE CO. - see "Computer Components" / 30 Morand Electronics / magnetic cores / 30 Mullard Overseas, Ltd., England / magnetic cores /30 National Aircraft Corp. / magnetic cores / 30 National Moldite Co. / magnetic cores / 30 Northern Electric Co., Ltd., Canada / magnetic cores /30 Permoflux Corp. / magnetic cores / 30 The Polymer Corp. of Pa. / magnetic cores / 30 POTTER INSTRUMENT CO., INC., 115 Cutter Mill . Rd., Great Neck, N. Y. / Magnetic core memory, random access memory / 30 Pyroferric Co., Inc. / magnetic cores / 30 Radio Cores, Inc. / magnetic cores / 30 RADIO CORP. OF AMERICA, COMPONENTS DIV., Camden, N. J. / magnetic cores / Ferrite memory cores, transfluxors, custom-built memory planes, aperatured ferrite memory plates, relays / 30 Sprague Electric Co. / magnetic shift registers / 30 Steward Mfg. Co. / magnetic cores / 30 Stupakoff Div. of the Carborundum Co. / magnetic cores /30 S~perex Electronics Corp. / magnetic cores / 30 SuperiQr CaIbon products, Inc. / magnetic cores /30 Supe~ipr-.Steatite & Ceramic Corp. / magnetic cores /30 Telectro ~dustries Corp. / magnetic cores / 30 TELEMETER MAGNETICS, INC., 2245 Pontius Ave. '. Los Angeles 64, Calif. / Magnetic Core Memories / .P~SCR: Small and large scale random access coincident-current core memories. Capacity 1,000 to 1 million bits. Speed 30 to 8 microseconds / -77 - 30 USE: for rapid access random storage in digital computing, automatic control and data processing systems / $50, 000 to $500, 000 / 30 TELEMETER MAGNETICS, INC., *a / MagnetioCores / DESCR: a...l;ine of ferrite cores with square hysteresis loop; recording heads, memory or switching cores, core matrices, shift registers, magnetic amplifiers / USE: for coincident-current memory, switching, logic, shift register counters and other digital. sub-systems / - / 30 Thomas & Skinner, Inc. / magnetic cores / 30 Thor Ceramics, Inc. / magnetic cores / 30 United Mineral & Chemical Corp. / magnetic cores / 30 U. S. Ceramic Tile Co., Diamonite Div. magnetic cores / 30 Western Gear Corp., Electro Products Div. / magnetic cores / 30 Western Gold & Platinum Co. / magnetic cores / 30 John F. Whitehead Co. / magnetic cores / 30 Yale & Towne Manufacturing Co. / magnetic cores / 30 31. MAGNETIC DRUMS ALWAC CORP., 13041 S. Cerise, Hawthorne, Calif. / Magnetic Drums / DESCR: 8192 or 4096 word capacity; also special drums from 1" to 4" dia., and 1/2" to 40" length. The 8192 word drum: 9-3/4" dia., 27-3/4" 19th., 44 lbs., 3480 rpm, 314 channels (28 recirc), 740,000 bits (100 per in.). The 4096 word drum: 9-5/8" dia., 16-13/16" 19th., 35 Ibs., 3450 rpm, 170 channels (25 recirc.), 390,000 bits (100 per in.) / USE: magnetic storage for ALWAC, or other computers / 8192 words, $8000; 4096 words, $5000; quotations or bids for design and production of special drums on request; tax, shipping, extra / 31 Brush Electronics Co. / Tape Drum / 31 BRYANT GAGE & SPINDLE DIVISION, Box 620, Springfield, Vt. / Magnetic Memory Drums, Precision Electro Mechanical Devices, High Speed Motors, Drums, Discs, Tape Transports, Machine Tool Spindles / DESCR: Magnetic drums designed to purchasers' requirements. Air bearings or superprecision ball bearings; belt drive or integral motor drive; speeds up to 200, 000 RPM; capacity up to 5,000,000 bi tS. Drum runout .0010" T. I. R. 'or less. Vertical or horizontal housing. Head mounting surfaces to suit. High density magnetic oxide coating / USE: for semi-permanent storage of data in digital computers or as a delay line / prices depend on quantity, design and product / 31 Electro-Machine Corp. / magnetic drums / 31 Electronic Computer Div. of Underwood Corp. / magnetic drums / 31 FERRANTI ELECTRIC, INC., 30 Rockefeller Plaza, New York 20, N. Y. / Rapid Access Magnetic Storage Drum (Type 200-B) / DESCR: drum rotates at 23,000 RPM giving a maximum access time of 2-1/2 milliseconds; 20 heads provide 20 tracks, each with capacity of 1000 bits at a density of 160 bits per inch / USE: as buffer store, signal delay system, Computers and Automation 31 or storage for small computer / $1425 / 31 Ferranti Electric Ltds., Mt. Dennis, Toronto, Ont., Canada / magnetic drums / 31 General Electric Co. Ltd. of England / magnetic drums / 31 !mtra Corp. / magnetic storage drums / DESCR: for use with digital computers am;! data-processing systems / USE: computers / Mark IT, $500; Mark ill, $2,000/31 Llbrascope, Inc., Glendale, Calif. / magnetic drums / DESCR: stock laboratory drums and stock and custom computer drums or special purpose drums /31 The Magnavox Co. / magnetic drums / 31 Magne-Pulse Corp. / magnetic drums / 31 MONROE CALCULATING MACHINE CO. - see "Computer Components" / 31 Norton Associates, Inc. / magnetic drums / 31 REMINGTON RAND UNIVAC DIV. OF SPERRY RAND CORP., 1902 W. Minnehaha Ave., St. Paul W4, Minn. / Magnetic Storage Drums / DESCR: Digital drums: motor-driven, rapid-access, high-speed storage, record information in binary form. Analog drums: utilize boundary-displacement recording techniques / USE: the digital drums are used as memory units for electronic computers and data reduction systems. The analog drums have been used for recording of power-line transients, phase-shifting of signals, signal-to-noise enhancement' and voice recording / $3780 to $21,700 (prices without heads) / 31 Telectro Industries Corp. / magnetic drums / 31 TELEREGISTER CORP., 445 Fairfield Ave., Stamford, Conn. / magnetic drums / 31 Wharf Engineering Labs., . England / magnetic drums /31 . . Wright Engineering Co. / magnetic drums /31 32. MAGNETIC HEADS ALWAC CORP., 13041 S. Cerise, Hawthorne, Calif. / Read-Record Heads / DESCR: Available for recording and reading both 8 and 16 channels per inch. 1-1/2" by 1/2" diameter; track width. 050" and .100"; .003" gap width; gap material, brass; winding, 500 turns, center-tapped, or to specifications; wire size, "38· copper-formvar insulated; inductance, 20 mh.; D.C. resistance, 17.5 ohms; resonant frequency, 400 KC / USE: with magnetic drums of digital computing systems / 1 to 9, $20 each; 10 to 99, $15 each; 100 or more, $10 each; tax, shipping, extra / 32 Brush Electronics Co. / magnetic heads / 32 The Davies Laboratories, Inc. (a division of Minneapolis-Honeywell Regulator Co. / Multi-Track Magnetic Heads / 32 Electronic Computer Div. of Underwood Corp. / magnetic recording heads /32 International Telemeter Corp. / Ferrite storage and recording head cores. Research and manufacturing in high capacity photoscopic storage devices / -78- 32 USE: in computer memories / cores from 2¢ to $1. 00/ 32 Librascope, Inc., Glendale, Calif. / Magnetic Head MH lOA / $15 to $36 / 32 McGraw-Edison Co., T. A. Edison Instrument Div. / magnetic heads / 32 MONROE CALCULATING MACHINE CO. - see "Computer Components" / 32 J. B. Rea Co., Inc. / magnetic recording heads / $25 /32 Wharf Engineering Labs., England / magnetic heads /32 33. MAGNETIC STORAGE SYSTEMS (see specifically MAGNETIC CORES, MAGNETIC DRUMS, MAGNETIC TAPE) ALWAC CORP., 13041 S. Cerise, Hawthorne, Calif. / Magnetic Tape Auxiliary S!.orage~; 2400 ft. of 1/2 inch tape, 7 tracks; 5th track for parity checks / DESCR: 10, 000 characters per second; search, read or write; 500" per second rewind; 2,000,000 decimal digits per reel; start, stop, 20 ms; buffer has 32 word capacity, each 32 bits plus sign; system is able to control 16 individual handling units / USE: data storage in conjunction with computer / tape unit, $10,000; buffer, $13,000; tax, shipping, extra /33 BURLINGAME ASSOCIATES, LTD. 103 Lafayette St., New York 13, N. Y. / magnetic storage systems / 33 Bussey Research Laboratories, Inc. / applied magnetics research / 33 Daystrom Instrument Co., Archbald, Pa. / magnetic drum storage systems / 33 Deltime .Inc. / registers / 33 Jacobs Instrument Co. / magnetic storage systems / 33 Librascope, Inc., Glendale, Calif. / Magnetic Storage Systems / DESCR: designed around Llbrascope standard magnetic drums and read record heads; development of special logic cirCuitry / 33 Mack Electronics / magnetic core storage; magnetic tape storage / 33 Monrobot Corp. / magnetic drum storage systems / 33 MONROE CALCULATING MACHINE CO. - see "Computer Components" / 33 POTTER INSTRUMENT CO., INC., 115 Cutter Mill Rd., Great Neck, N. Y. / Random Access Memory (RAM) / DESCR: three-dimensional data storage device; 0.5 second access to digital data stored in any of 100, 000 or 400, 000 locations (200 alphanumeric characters per location) / USES: computer file storage, list processing, business applications / $50, 000 / 33 TELEMETER MAGNETICS, INC., 2245 Pontius Ave. , Los Angeles 64, Calif. / Magnetic Core Buffer Stores / DESCR: Magnetic core storage units for applications in computing, automation control and automation systems. Sequential and random access. Information transfer rates up to 100 kc. ii'ully solid state units. / USE: for use in systems requiring temporary storage, delay or time synchronization. t Buyers' Guide ,33 Bit capacity up to several thousands with parallel handling up to 36 bits / $5, 000 to $25, 000 / 33 TELEMETER MAGNETICS, INC., *a / Magnetic storage Systems / DESCR: Magnetic core memories from 1000 bits to 1 million bits. Data, tape and code converters. Magnetic components including cores, shift registers, switches, decade scalers and core matrices / - / - / 33 34. MAGNETIC TAPE American Lava Corp. / magnetic tape / 34 AMPEX CORP., 934 Charter St., Redwood City, Calif. / magnetic tape / 34 AUDIO DEVICES, INC., 444 Madison Ave., New York 22, N. Y. / magnetic tape, guaranteed free of defects l USE: computers, telemetry, lnstrumehtation, sound recording / 34 CBS International / magnetic tape / 34 ORRADIO INDUSTRIES, Shamrock Circle, Opelika, Ala. / mISH Brand Ferro-Sheen Magnetic Tape for Computers and Telemetering Recorders / DESCR: ORRadio Industries manufacture a complete line of Instrumentation Tape on 1-mil mylar; 1-1/2-mil mylar; 1-1/2-mil cellulose acetate. Standard widths 1/4", 1/2", 5/8", 3/4", 1" and 2" - in lengths from 1200' to 5000'. Inquiries invited on special type s of magnetic tape / - / from $6.70 to $303.60/ 34 TELEMETER MAGNETICS, INC., 2245 Pontius Ave., Los Angeles 64, Calif. / Data converters / DESCR: Paper tape to magnetic tape converters. Magnetic tape to magnetic tape. Tape to high speed printer. Speci3J. purpose data converters to meet customer needs / USE: Systems designed to convert digital data from one format or code to another or to operate functional equipment from tape input / - / 34 Thomas & Skinner, Inc. / Magnetic tape / 34 35. MAGNETIC TAPE HANDLERS (see also MAGNETIC TAPE RECORDERS) AmBORNE INSTRUMENT LABORATORIES, MODAC DIVISION, (formerly Mountain Systems, Inc.), 864 Franklin Ave., Thornwood, N. Y. / MODAC 632 / DESCR: Magnetic tape input-output unit; 7 -channel, parity bit check after recording. / USE: to prepare tape for other computers / $12, 000 to 17, 000 / 35 Armour Research Foundation, illinois Inst. of Technology / magnetic recording / 35 Brush Electronics Co. / datacord / 35 ELECTRODATA DIVlSION OF BURROUGHS CORP., 460 Sierra Madre Villa, Pasadena, Calif. / digital magnetic tape transport units / DESCR: 1/2" or 3/4" tape on 10 1/2" reels, 3 or 6 millisecond startstop, fast rewind, single speeds up to 75 inche s per seco~, multiple speeds / USE: digital computer systems, data processing and telemetering systems, -79 - 35 automatic controls / around $8, 000 / 35 Hycon Eastern Inc. / magnetic tape handlers / 35 Key Electric Corp. / magnetic tape handlers / 35 Librascope, Inc., .Burbank Div., (formerly The Minnesota Electronics Corp) / NOISERASER / DESCR: magnetic tape demagnetizer / USE: bulkdemagnetizes tapes and film used in telemetering recording, data processing and machine tool control/35 POTTER INSTRUMENT CO., INC., 115 Cutter Mill Rd., Great Neck, N. Y. / Magnetic tape handler / DESCR: digital magnetic tape handler for multiplechannel record and playback applications; choice of speeds of 15, 30, 60, 75, and 100 inches per second / USE: storage device for digital computers and other data-handling equipment / from $3,000 up /35 TELEMETER MAGNETICS, INC., 2245 Pontius Ave., Los Angeles 64, Calif. / see "Magnetic Tape" /35 36. MAGNETIC TAPE RECORDERS (see also MAGNETIC TAPE HANDLERS) American Measuring Instruments Corp. / magnetic tape recorder s / 36 AMPEX CORP., 934 Charter St., Redwood City, Calif. / magnetic tape recorders / DESCR: recording and reading equipment / USE: for computer input, output, and storage for automatic data-reduction systems for machine-tool-control systems / $2,750 up / 36 Amplifier Corp. of America / recording equipment, magnetic tape recorders / 36 Ampro Corp. / recording equipment, magnetic tape recorders / 36 Anelex Corp. / Micro-Tapestepper / 36 Audio Instrument Co., Inc. / Model 301 Magnetic Tape Delay Unit / 36 A-V Mfg. Corp. / magnetic tape recorders / 36 Avion Division of American Car and Foundry Industries, Inc. / magnetic recorders / 36 Avion Instrument Co. / magnetic recorders / 36 Bell Sound Systems, Inc. / recording equipment; mag!'"" netic tape recorders / 36 Bergen Laboratories / recording equipment, magnetic tape recorders / 36 Berndt-Bach, Inc., Auricon Div. / recording equipment, magnetic tape recorders / 36 Capital Records, Inc. / magnetic tape recorders / 36 Century Electronics & Instruments Inc. / magnetic tape recorders / 36 Clevite Brush Development Co. / magnetic tape recorders / 36 Components Corp. / magnetic tape recorders / 36 Connecticut Telephone & Electric Corp. / magnetic tape recorders / 36 Darby Radio Corp. / magnetic tape recorders / 36 The Davies Laboratories, Inc., / magnetic tape data recorders / 36 Computers and Automation 36 37 Daystrom Electric Corp. / magnetic tape recorders /36 Dictaphone Corp. / magnetic tape recorders / 36 Dukane Corp. / magnetic tape recorders /36 Dulrow Development Co. / magnetic tape recorders / 36 E. I. DuPont de Nemours" Co., Inc. / magnetic tape recorders I 36 Edwards Engineering Co. / magnetic tape recorders I 36 Electronic Teaching Labs / magnetic tape recorders /36 Electr»-Sonic Lab. / nugnetic tape recorders I 36 Fairchild Recording Equipment Co. / magnetic tape recorders I 36 Fenton Co. / magnetic tape recorders I 36 Fischer Smith Inc. / magnetic tape recorders / 36 Fonda-Bensing Corp. I magnetic tape recorders I 36 General Industries Co. I magnetic tape recorders / 36 Goldak Co. / magnetic tape recorders / 36 Gotham Audio Development Corp. I magnetic tape recorders / 36 Gray Mfg. Co. I magnetic tape recorders I 36 Houston Technical Labs. I magnetic tape recorders I 36 Induction Motors Corp. / magnetic tape recorders I 36 Key Electric Corp. I magnetic tape recorders / 36 Gulton Mfg. Corp. magnetic tape recorders I 36 Lambda-Pacific Engineering, Inc. I magnetic tape recorders I 36 M & S Sound System Co. I magnetic tape recorders 37. OFFICE MACIDNES (Computer types) (see also specific types) Rixon ElectrOnics, Inc. I office machines / 37 Standard Instrument Corp., Div. of Heat-Timer Corp. I Model SR- Recorder & Totalizer / DESCR: continuous sprocket driven strip chart; continuous recording; elapsed time meter; lift-up autograph access window; uses no ink / $65. 00 I 37 standard Register Company I Typewriter Encoder / DESCR: enables single operator to type numerical information and its dot-code cotmterpart on same form at same time I USE: with Stanomatic / - I 37 38. PAPER TAPE FILING SYSTEMS Visirecord, Inc. / filing systems for ptmched paper tape, etc. I 38 39. PAPER TAPE PUNCHES /36 Magnecord, Inc. / magnetic tape recorders / 36 Magne-Pulse Corp. I magnetic tape recorders / 36 Microtone Co. / magnetic tape recorders / 36 Miles Reproducer Co. / magnetic tape recorders / 36 Mohawk Business Machines Corp. / magnetic tape recorders I 36 Oakton Engineering Corp. I magnetic tape recorders 136 Olympic Radio & Television Inc. / magnetic tape recorders / 36 Lee H. Owens Co. /magnetic tape recorders I 36 Pentron Corp. / magnetic tape recorders / 36 Press Wireless Labs., Inc. I magnetic tape recorders I 36 Presto Recording Corp. I magnetic tape recorders / 36 Pye Corp. of America / magnetic tape recorders I 36 Radio Corp. of America, Precision Electronic Inst. / magnetic tape recorders I 36 RCA Victor Co., Montreal / magnetic tape recorders 136 Radio Kits, Inc. / magnetic tape recorders / 36 Rek-O-Kut Co. / magnetic tape recorders / 36 stancil-Hoffman Corp. I magnetic tape recorders I 36 Tarc ElectrOnics, Inc. I magnetic tape recorders / 36 Telectro Industries Corp. / magnetic tape recorders Creed & Co., Ltd., England I teleprinters & punched tape equipment / 39 ELECTRODATA DIVISION OF BURROUGHS CORP. - see "Digital Computers" I 39 FRIDEN CALCULATING MACHINE CO., INC., San Leandro, Calif. / Add-Punch and Compu-Punch, automatic equipment for punching codes in tape; Computyper (a typewriter-billing machine, with many automatic functions. Model C. equipped with automatic tape punch, input-and output); motorized tape punches and readers / 39 Kleinschmidt, Inc. I tape punching equipment / 39 SOROBAN ENGINEERING. INC.. Box 338, Melbourne, Fla. / Paper-Tape Perforators / DESCR: high speed paper tape perforators capable of 8 level perforations at speeds up to 240 characters per second I - I $8750/39 Tally Register Corp. I numeric printing tape punch; printing transfer key punch / 39 Teletypesetter Corp. I tape perforators and operating units for local or distant automatic control of Linotypes and Intertypes I 39 136 V - M Corp. / magnetic tape recorders 136 J. C. Warren Corp. I magnetic tape recorders / 36 Webster-Chicago Corp. / magnetic tape recorders / 36 Webster Electric Co. / magnetic tape recorders / 36 Westrex Corp. I magnetic tape recorders / 36 - 80 - 40. PAPr.'R TAPE READERS ELECTRODATA DmSION OF BURROUGHS CORP. ' - see "Digital Computers" /40 FERRANTI ELECTRIC, INC., 30 Rockefeller Plaza, New York 20, N. Y. / High Speed Photoelectric Bayers' Guide ) Tape Reader / DESCR: can read either 5 hole or 1 hole punched paper tape at speeds up to 400 cbar~ acters per second; tape is stopped from full speed within a specified character; from rest position, . within 6 milliseconds after an instruction, the next character can be read / USE: input from punched paper tape to high speed computer / $1700/40 i'ERRANTI ELECTRIC, INC., *a / Tape Spooler / DESCR: feed or take up of punched paper tape; width, between 11/16" and 1"; maximum reel diameter, 8"; maximum speed of tape with the Ferranti Wgh Speed Tape Reader / $245 / 40 [{leinschmidt, Inc. I tape reading equipment /40 Monroe Calculating Machine Co~ Orange, N. J. I paper tape readers / 40 POTTER INSTRUMENT CO.. INC., 115 Cutter Mill Rd., Great Nec~ N. Y. / Perforated Tape Reader I DESCR: provides character reading speeds of 600, 300, or 150 characters per second; full speed is achieved in 3 milliseconds, and tape stops on or 00:fore character following stop code (before next character at 300 characters per second); models available for handling 5, 6, 7, and 8 level perforated tape / USE: digital computing and data-handling field / prices start at $3,000/ 40 SOROBAN ENGINEERING, INC., Box 338, Melbourne, Fla. / Paper Tape Readers / DESCH: single and dual mechanical sensing paper tape reading devices capable of eight level reading up to speeds of 60 characters per second / - I $650 to $1150 / 40 41. PATCHCORDS AMP, Inc. / Patchcord Programming Systems and Boards / 41 42. PHOTOELECTRIC CARD READERS General Cybernetics Corp. / Punched Card Feeder and Reader (Model 155 "Cybertacft System) / 42 General Cybernetics Corp. / Punch Card Reader Head / 42 General Precision Laboratory / Rapid electronic analysis of punch card data / 42 43, printed data to some other medium such as tabula-' ting card / 43 Intelligent Machines Research Corp., I Devices for reading characters on paper, etc; pattern interpretation equipment I 43 THE STANDARD REGISTER CO., Dayton 1, Ohio / electronic equipment (called "Stanomatic") capable of sensing or rea..cUJ:1g printed codes on business documents and translating them into digital pulses which will actuate office machines such as card punches, tape perforators, computers, etc. /43 44. PHOTOELECTRIC TAPE READERS ELECTRODATA DIVISION OF BURROUGHS CORP. - see "Digital. Computers" I 44 FERRANTI ELECTRIC, INC.. 30 Rockefeller Plaza, New York 20, N. Y. - see "Paper Tape Readers"/44 Key Electric Corp. / photoelectric tape readers / 44 POTTER INSTRUMENT CO•• INC. - see "Paper Tape Readers" / 44 45. PHOTOGRAPmC RECORDERS (Computer Types) INTERNATIONAL BUSINESS MACHINES CORP., 590 Madison Avenue, New York 22, N. Y. and elsewhere / The 740 Cathode Ray Tube Output Recorder / DESCR: an electronic output device designed for use with the mM 701, 704, or 709. It provides an output which records data points on the faces of a pair of television-like tubes at the rate of 8, O()O per second; the larger tube is used for visual display; the smaller tube is used in conjunction with a camera under control of the 701, 7~ or 709. The camera automatically photographs information as directed by the program / USE: for SCientific, engineering, and design problems / Monthly rental $2, 850. Selling price $170,700. / 45 International Telemeter Corp. / Ferrite storage and recording head cores. Research and manufacturing in high capacity photoscopic storage devices I USE: In computer memories / cores from 2~ to $1.00 / 45 46. PLOTTERS 43.. PHOTOELECTRIC DECODING READERS CONTROL INSTRUMENT CO.. INC.. 67 35th St... Brooklyn, N. Y. / character recognition equipment! DESCR: equipment reads numbers printed in nonspecial type and ordinary ink, using photoelectric scanner, on travellers checks or similar documents; automatically feeds and reads at rate of 120 documents per minute; simultaneously transcribes information read into tabulating card at the rate of one card per document / USE: transcrIbing ordinary - 81 - Alden Electronic and Impulse Recording Equipment Co. / automatic curve plotters / 46 ALWAC CORP., 13041 s.. Cerise, Hawthorne, Calif. / General Purpose, Analog Table-Type, Plotter-Follower, as plotterJ input can be punched paper tape, edgepunched cards, mM punched cards, keyboard / DESCR: plotter gives analog representation on 24" x 36" table chart; data presentation includes straight point-to-point line drawing, or printed symbols for parameter studies; follower punches mM cards, 46 eo.puters and paper tape or edge-punched cards; can be used with digital differential analyzer; follows change in line slope up to and including infinity / USE: plotter, point and chart plotting; follower, function generator / plotter, $5500; follower, $4400; tax, shipping, extra / 46 ' American Machine & Foundry Co., ElectrOnics Div. / plotters / 46 Anelex Corp. Anelex Synchroplotter / 46 Benson-Lehner Corp. / Electroplotters, plotters / 46 BURLINGAME ASSOCIATES, LTD., 103 Lafayette St., New York 13, N. Y. / X-Y plotters /46 C'a1ifornia Computer Products / Digital Incremental Plotter / DESCR: Plots X-Y graphs in increments or steps of 1/100 inch upon receiving pulses from a digital differential analyzer / - / apprOximately $1,000 to $1, 500 / 46 Edin Co., Inc. / Direct Writing Oscillograph Recorders and Hi-Gain D. C. Amplifiers / DESCR: one to ten channels featuring combination ink and! or electric display; readily changeable chart speeds; folded chart paper, requires no rewind mechanism and is numbered by fold for indexing and filing; frequency response D. C. to 350 c. p. s. / USE: excellent for computer read-out or related circuit / $445 for single channel, $2500 for 10 channels / 46 ELECTRONIC ASSOCIATES, INC., Long Branch, N. J. / Variplotter, Model205N / DESCR: self-balancing potentiometer type recorder; a 4-pen (2 writing-pens, 2 timing pens), 2-arm board enabling recording of 2 independent inputs of X versus Y with identified timing signals, simultaneously / USE: to record one variable d-c voltage as a function of a second variable d-c voltage / - / 46 ELECTRONIC ASSOCIATES, INC., *a / Variplotter, Models 205K and L / DESCR: 205K is a single pen and arm board that will present a single plot of X vs Y; supplied with continuously variable uncalibrated scale factor and parallax controls for each axis; 205L is a 2-arm, 2-pen plotting board equipped with the same features as 205K and with separate scale factor and parallax panels for the pens; an automatic pen interchange system; an automatic pen lift circuit / USE: to record one variable d-c voltage as a function of a second variable d-c voltage, applied to servo amplifiers controlling the motion of the arm along the ordinate and the pen along the abscissa / 2051{, $6, 500; 205L, $10, 000 / 46 ELECTRONIC ASSOCIATES, INC., *a / Variplotter, Model1100D / DESCR: table top X-Y recorder in portable package; data plotted on 11" x 17" graph paper / USE: X-Y analog recorder; function gen.:. erator of a single variable; with modification will plot digital information from punched cards or tape / $2,00/46 ELECTRONIC ASSOCIATES, INC., *a / S!x Channel Recorder, Model 1902C / DESCR: a push-button speed selector provides essentially instantaneous control of paper sp~ed over the entire recording range; push-button controls are provided for individual eel-' ection of the recording scale factor of each channel; all models may be remotely controlled from the - 82- Automati~n 46 associated computer system, or may control the computer itself from the recorder location;. chopper stabilization for all d-c amplifiers is suppUed as a standard facility; all pens are protected against accidental overload by limiting circuits designed to prevent plot inaccuracies / USE: produced specifically for use with analog computing installations for recording or outp,ut voltages against time / - / 46 Librascope, Inc. / XY Plotters / DESCR: two axis plotters for point or curve plotting, models for DC voltage or resistance input, converters for binary, punched card or punched tape input keyboards / 46 F. L. MOSELEY CO. t 409 N. Fair' Oaks Ave., Pas adena, Calif. / Moseley AUTOGRAF X-Y Recorder / DESCR: two-coordinate X-Y recorder, curve follower, point plotter; card and tape translators; also large scale servo voltmeter with ranges from 3 millivolts to 300 volts / USE: data plotting and curve read-out / recorder, $975 to $1775; voltmeter, $575 / 46 Servo Corp. of America, / Dead Reckoning Tracker (DRT) / DESCR: automatically plots course and position of aircraft / USE: for detection and plotting / - / 46 Tally Register Corp. / High Speed Digital Plotter / DESCR: digital input, multiple symbol X-Y plotter with continuous grid printing on continuous form vellum'or paper stock / USE: operates directly from digital computers, card readers, keyboard, etc. / $20,000/46 47. POTENTIOMETERS Ace Electronics Associates, Inc. / preCision potentiometers, linear and non-linear / 47 Ace Electronics ASSOCiates, Inc. / potentiometer trimmers / 47 Aero Electronics Corp. / potentiometers / 47 Allen-Bradley Co. / potentiometers / 47 Analogue Controls Inc. / potentiometers /47 Barber-Colman Co. / potentiometers - recorder~ / 47 Beckman Helipot Corp. / potentiometers / 47 George W. Borg Corp., Borg Equipment Div. / potentiometers / 47 Bourns Laboratories / potentiometers / 47 THE BRISTOL CO., Waterbury 20, Conn. / electronic recording potentiometers -- see "Automatic Control Equipment " / 47 Canadian Marconi Co., Ltd. / potentiometers / 47 Circuit Instruments, Inc. / potentiometers / 47 Claro stat Mfg. Co., Inc. / potentiometers / 47 Computer Instruments Corp. / precision potentiometers / 47 Con-Elco / potentiometers / 47 Continental Carbon, Inc. / potentiometers / 47 Dale Products, Inc. / potentiometers / 47 Daystrom Pacific Corp. / potentiometers / 47 DeJUR-Amsco Corp. / precision potentiometers, linear and non-linear / 47 Electro-Measurements, Inc. / potentiometers / 47 Computers and Automation 48 47 Coxhead Corp. / type composing of display types by Electro-Mec Laboratory. Inc. / potentiometers / 47 photography using a desk machine / 48 The Eppley Laboratory. Inc. / EPLAB standard CELLS FISCHER & PORTER CO., 330 Warminster Rd., Hatfor potentiom~1;!:.ic insg-.YIIl~~ts / 47 boro, Pa. / Automatic Typewriter / DESCR: StandFairchild Controls Corp.. Components Div. / preciard electric typewriter actuated by solenoid base sion potentiometers, linear and non-linear, single automatically logs data originating from programmed and multi-turn, linear motion, trimmers wire source. Abnormal readings are recorded automatwound and metal film types / 47 ically in.a color other'than that of normal readings. Fairchild Engine and Airplane Corp. / potentiometers Typewriter compatible with most data reduction /47 Gamewell Co. / potentiometers / 47 systems. Available accessories include auxiliary General Controls, Potentiometer Div. / potentiometape punch / USE: in conjunction with data proters / 47 cessing systems / - / 48 General Findings & Supply Co. / potentiometers / 47 New England Adding Machine Co. / printers / 48 Helipot Corp. / precision potentiometers; single and POTTER INSTRUMENT CO., INC., 115 Cutter Mill multi-turn, linear and non-linear, turns counting Rd., Great Neck, N. Y. / Digital high-speed dials / 47 printers, Magnityper /48 Humphrey, Inc. / potentiometers / 47 RADIATION, INC., P. O. Box 37, Melbourne, Fla. / Leeds & No~thrup / Potentiometers / DESCR: Laborprinter s / 48 atory types for precision measurements, portable Taller & Cooper, Inc. / printers /48 type s for te sting, automatically balanced type s for industrial processes / $270 up / 47 Litton Industries of Maryland, Inc. / potentiometers/47 49. PUBLICATIONS Markite Corp.· / Markite conductive plastic potentiometers / 47 COMPUTERS AND AUTOMATION, 815 Washington St. , Maurey Instrument Corp. / potentiometers / 47 Newtonville 60, Mass. / Computers and Automation The Perkin-Elmer Corp. / potentiometers / 47 / DESCR: Monthly magazine, about 50 pages per SCHWEBER ELECTRONICS, 122 Herricks Road, issue. Articles, reference information (14 kinds), Mineola, N. Y. / potentiometers / 47 papers, forum, etc., dealing with automatic comServomechanisms, Inc. / film potentiometers puting machinery and its applications and implicaServonics, Inc. / potentiometers / 47 tions / USE: For keeping up to date with the comSpecialties, Inc. / precision potentiometers / 47 puter field; finding out reference information quickly Spectrol Electronics Division of Carrier Corp. / preCision potentiometers; complete line of potenI U. S., $5.50 a year; foreign, $6.50 a year /49 CUDAHY PUBLISlUNG COMPANY, 6141 North Cicero tiometers / 47 Ave., Chicago 30, ID. / Publishing automatic data Technology Instrument Corp. / precision potentiomeprocessing service, weekly service for users of ters /47 automatic data processing equipment / 49 Vari-Ohm Corp. / potentiometers / 47 DATA PROCESSING DIGEST, 1140 S. Robertson Blvd., Waters Manufacturing, Inc. / precision potentiometers, Los Angeles 35, Calif. / Data Processing Digest / miniature / 47 DESCR: Monthly bibliographic service in field of Westronics, Inc. / potentiometers / 47 data processing for business and industry; contains listings and abstracts of current articles, conference proceedings, papers; reviews of new books, films, meetings, and training courses. Complete 48. PRINTERS (see also LINE-A-TIME references to original sources / - / $24 per year PRINTERS, ELECTRIC TYPEWRITERS, CONTROLLED) (12 issues); group rates on request /49 ADDRESSOGRAPH-MULTIGRAPH CORP., 1200 Bah:" bitt Rd., Cleveland 17, Ohio / Magnetic Tape Electronic Printer / DESCR: parallel-serial, reads data contained on magnetic tape and prints at 1500 to 3000 lines per minute onto ordinary continuous paper / 48 ADDRESSOGRAPH-MULTIGRAPH CORP., *a / Transfer Printer / Makes use of continuous form master prepared on Addressograph-Multigraph printers, typewriters, or line printers to transfer printing data onto automatically-fed unit documents / 48 Anelex Corp. / high-speed printer / 48 Bell Punch Co., Ltd., England / printers / 48 Computer Measurements Corp. / digital printer / 48 Copy-Craft Inc. / printers, data /48 - 83 - 50. PULSE TRANSFORMERS AJrpax Products Co. / pulse transformers / 50 ALADDIN ELECTRONICS, A Division of Aladdin industries, Inc., 703 Murfreesboro Rd., Nashville, Tenn. / Aladdin Pulse Transformer Encyclopedia / DESCR: comprehensive engineering bulletin for circuit designers, discussing pulse transformer applications and listing over 1000 available combinations of circuit characteristics and pulse performance / 50 ALADDIN ELECTRONICS, A Division of Aladdin Industries, Inc., *a / Pulse transformers / DESCR: wide variety of standard types / USE: Blocking oscillators, coupling, pulse inversion, impedance Comput~rs 50 and Automation matching I $1. 53 to $12. 00 / 50 Gudeman Co. of Calif. / pUlse transformers / 50 Gudeman Co. of Calif. / miniature pulse transformers /50 Raytheon Manufacturing Co. / computer pulse transformers / 50 Sprague Electric Co. I miniature pulse transformers/50 Technitrol Engineering Co. I pulse transformers / 50 Triad Transformer Corp. / pulse transformers / 50 51. PUNCH CARD 'MACHINES Analogue Controls Inc. I punch card machines / 51 BRITISH TABULATING MACHINE CO., LTD., 17 Park Lane, London W 1, England / Punched card machines / 51 Bull S. A. Compagni~ des Machines, Paris, France I punch card machines /Sl Dennison Manufacturing Co. / Dennison Prin,t-Punch Marking Machine / 51 Devol Research Co. / punch card machines / 51 Educational Research Corp. / punch card machines/51 Electro-Machine Corp. / punch card machines / 51 Buck Co .. I card sensing and punching units / 51 INTERNA TIONAL BUSINESS MACHINES CORP., 590 Madison Avenue, New York 22, N. Y. / A complete line of punched card machines. These .include card punches, collators, sorters, accounting machines, proof machines, interpreters, Data Transceivers, the Cardatype Accounting Machine, the Ticket Converter, etc. Details available on reque st / - / 51 J. V. KANE & CO., 10{)4 Cloverhill Rd., Wynnewood, Pa. I punch card machines I 51 Kaye Development Co. / punch card machines / 51 A. KIMBALL CO., 444 4th Ave., New York 13, N. Y. / Print-Punch Machines and reading devices in the periphery of the computing field. Kimball "75" Punch Marking System I DESCR: Machines for printing and punching garment tags, inventory tags, production control tickets, etc. Machines for centrally reading tickets and tags into punched cards, punched tape, and direct to memories; "Machinelanguage" processing equipment / USE: unit control and. inventory control in department and chain store S; models of printing and punching equipment for creating of production control and piece-work ticket media for automatic processing to payroll and cost distributions; models of machines for creation of printed and punched identification media for inventory by reading the identification at specific control points I $3, 000 to $10) 000 / 51 LaVoie Labs, Inc. / Punch card machines I 51 Log Abax S. A.. / punch card machines / 51 McBee Co. I punch card machines / 51 METRON CORP., 8 Coryell St., Lambertville, N. J. / In Static Punched Card Sensor I DESCR: accepts .a standard punched card and when the handle is closed, the circuit corre sponding to an unpunched hole position is opened / USE: multiple Switching using a punched card I from $1, 000 to $10, 000 / 51 - 84 - 51 NATIONAL ANALYSTS. INC., 1015 Chestnut St., Philadelphia 7, Pa. / punch card machines / 51 Otis Elevator Co. / punch card machines / 51 Powers-Samas Accounting Machines, Ltd.. England / Punch card tabulating equipment using small, medium and standard cards I 51 REMINGTON RAND UNIVAC DIV•• SPERRY RAND CORP., 3154th Ave., New York 10, N. Y. / Calculating Punch: 90-Column Tabulating Card Calculating Punch, Type 330-4/ DESCR: adds, subtracts, multiplies and divides values punched into cards; punches results into same card or any or all following cards; various computations can be performed Simultaneously / USE: in accounting machine procedures I $275 monthly rental; $18,425 sale; prices subject to tax / 51 REMINGTON RAND UNIVAC DIV.·, SPERRY RAND CORP., *a I Card Punch: Card-O-Matic 90 Column Tabulating Card Punc~ Type 308-6 / Alphabetic key punch from which keyboard has been removed and installed in a remote oontrol unit connected to the punch by electric cable; additional keys installed with regular punch keyboard for "fieltl selection" I USE: card punch. remote control/rental $95 per month; sale, $5220; prices subject to tax / 51 REMINGTON RAND UNIVAC DIV., SPERRY RAND CORP., *a / Card Punch: 90-COlumn Tabulating Card Numeric Key Punch, Type 204-2 / DESCR: records information by punched holes; equipped to serve as verifier; information may be stored for repeat punching; electrified 10-key touch method keyboard / USE: punched card accounting machines operation, input-output in Univac File Computer System I $30 monthly rental; $1737 sales; prices subject to tax / 51 REMINGTON RAND UNIVAC DIV.·, SPERRY RAND CORP., *a / Computer: 90-Column, Punched Card Electronic Computers, Types Univac 120, Univac 60 / DESCR: adding, subtracting, multiplying, dividing and comparing functions provided by built-in circuits; comprised of 2 units, a card sensing punching unit and an electronic computing unit / USE: accounting or statistical routine, engineering problems, etc. / rental $740 to $1350 per month; sale $'15, OUO to $97, 000; prices subject to tax / 51 REMINGTON RAND UNIVAC DIV., SPERRY RAND CORP., *a J Collator: 90-Column Tabulating Card Numerical Collator Type 319 / DESCR: collates punched cards numerically at a speed of 240 cards per minute from each feeding magazine; 2 feeding magazi.ues) 4: reeeiving magazines; sequence checking of cards fed by both magazines; will collate numerical information and compare alphabetical information simultaneously / USE: for numeroUs card processing operations / rental, $125 pel' month; sale, $10,000; prices subject to tax / 51 REMINGTON RAND UNIVAC DIV., SPERRY RAND CORP.. , *a / Interpreter: 9Q-Column Tabulating Card Automatic Line Finding Posting Interpreter Type 312-4 I DESCR: automatic posting of ledger cards of tabulating card size at 45 postings per minute~ requires 315-1 collator as a companion 51 Computers and Automation 51 unit; posted data may be alphabetical or nUmerical / per minute; will store information / USE: accountUSE: for posting account~ or statistical ledgers / ing or billing procedures / rental, $125 per month; rental $155 per month; sale $10,420; prices subject sale, $8750; prices subject to tmc./ 51 to tax / 51 REMINGTON RAND UNIVAC DIV., SPERRY RAND REMINGTON RAND UNIVAC DIV., SPERRY RAND CORP., *a / Sorter: 90-Column Tabulating Card CORP., *a / Interpreter: 90-Column Tabulating Electronic Sorter, Type 420 / DESCR~ sorts cards Card Interpreter Type 312/ DESCR: reads informat a speed of 800 cards per minute; numerical or ation from punched cards and prints the alphanumeralphabetical sorting; may be wired for combined, ic interpretation on the same card; 90 cards per minposition or selective sorting; additional features ute / USE: easy means of verifying punching; profor card pairing, selective sorting and card countvides easily read document for use outside machine ing available / USE: punched card sorting I rental, accounting department / rental, $90 per month; $85. to $100 per month; sale, $5600 to $6650, spesale, $5904; prices subject to tax / 51 cia! features extra; prices subject to tax / 51 REMINGTON RAND UN1VAC DIV., SPERRY RAND REMINGTON RAND UNIVAC DIV., SPERRY RAND CORP., *a / Interpreter: 90-Column Tabulating CORP., *a I Summary Card Punch: 90-Column Card Check-Writing Interpreter, Type 312-2/ Tabulating Card Summary Punch, Type 311/ DESCR: automatically punches summary total, grand total, DESCR: automatically interprets punched holes in tabulating card or card check; visibly registers the or both summary total and grand total information, Interpretation on the. face of the card or check / with suitable identification, printed on reports or USE: for writing tabulating card checks / rental, forms prepared on the Model 3 Tabulators to which $100 per month; sale, $6600; subject to taxes / 51 it is permanently connected; also summary cards REMINGTON RAND UN1VAC DIV., SPERRY RAND are optionally punched without delaying the tabulator / CORP., *a / Reproducer: 90-Column Tabulating 1JSE: punched-card procedures for accounting and Card InterfUlng Reproducing Punch, Type 310-1/ statistical purposes / rental, $80 per month; sale, DESCR: reproducing punch; interfiles cards fed $5557; devices and attachments extra; prices subfrom 2 feeding magazines / USE: punched card ject to tax / 51 accounting procedures / rental, $125 to $150 per REMINGTON RAND UNIVAC DIV., SPERRY RAND month; sale, $9376; prices subject to tax / 51 CORP., *a / Synchro-Matic Punched Card AccountREMINGTON RAND UNIVAC DIV., SPERRY RAND ing Machine; Punch Types 207-1, 308-1 and 308-4; CORP., *a / Reproducer: 90-Column T,abulating Accounting Machines, Types 80, 81, 83 and 85 / Card Multi-Control Reproducing Punch Type 310 / DESCR: numericalor alphabetic punches electricDESCR: will reproduce card-for-card or many ally connected and synchronized with various models cards from one; feed two files of cards comparing of Remington Accounting Machines to create punched values of one with the other and punch those that cards containing information from entries and commatch or those that do not match or all cards; segputations made on the accounting machines / USE: regate cards that do not match; 8 out of 10 card various accounting purposes / accounting machine feeding functions available may be incorporated on rental, $100 to $250 monthly; sale $3000 to $5000; one machine / USE: payroll accounting, etc. / punches, $40 to $55 monthly rental; $2430 to $3474 rental, $100 to $125 per month; sale, $7640; prices sale; prices are approximate and subject to tax / 51 subject to tax / 51 REMINGTON RAND UNIVAC DIV. t SPERRY RAND REMINGTON RAND UNIVAC DIV. t SPERRY RAND CORP., *a I Sorter: 90-Column Tabulating Card CORP., *a / Reproducer: 90-Column Tabulating Standard Sorter, Type 320 / DESCR: sorts cards Card'Reproducing Punch, Type 314 / DESCR: reeither alphabetically or numerically at a speed of produces tabulating cards; reproduction may be ex420 cards per m~ute (also available at 250 cards act or modified; may also be used as a duplicating per minute); may be equipped with counting attachpunch / USE: in inventory control, billing, etc. / ment, pairing and selective sorting attachments / rental, $45 to $60 per month; sale, $3473 to $3820; USE: sorting operations I rental, $33 to $53 per prices subject to tax / 51 month; sale $2778 to $3473; prices subject to tax/51 REMINGTON RAND UNIVAC DIV. t SPERRY RAND REMINGTON RAND UNIVAC DIV., SPERRY RAND CORP., *a / Reproducer: 90-Column Tabulating CORP., *a / Tabulator: 90-Column Tabulating Card Card Collating Reproducing Punch Type 315-1/ Alphabetical Tabulator Model 3 / DESCR: translates DESCR: 100 cards per minute from each of 2 feedand prints, in any statement form desires, the numing magazines; standard reproducing punch functions; erical and alphabetical. information punched in tabuwill inter-file, segregate or select with sequence lating cards; adds, sub tracts, prints, totals / USE: control/USE: elimination of separate sorting, tabulating, accounting, analysis reports / rental, punching collating operations / rental $165 to $170 $285 to $495 per month; sale, $20,159 to $29,189; per month; sale, $12,155j prices subject to tax / 51 devices and attachments extra; prices subject to REMINGTON RAND UNIVAC DIV., SPERRY RAND tax / 51 CORP.. *a / Reproducers: 90-Column Tabulating REMINGTON RAND UNIVAC DIV., SPERRY RAND Card Reproducers for short cards, Types 314-3, CORP., *a / Tag-to-Card Reproducers for Perfor4, 5, &; 6 / DESCR: punch into 90-column card inated Merchandise Tags, Types 317-1 and 2 / DESCR: formation recorded in short cards of 16, 20, 27, or will read Kimball or Dennison price tickets; and 33 columns; same features as Type 314; 125 cards punch into 90-column tabulating cards the price - 85 - Computers and Automation 51 53 Rapid Electric Co., New York, N. Y. I rectifiers I 53 RA YTHEON MANUFACTURING CO., Receiving and Cathode Ray Tube Operations, 55 Chapel St., Newton 58, Mass. / Silicon diffused junction wiredin and 7/16" stud rectifiers. Silicon power rectifiers I 53 SOLA ELECTRIC CO., 4633 W. 16 St., Chicago 50, nl. I rectifiers I 53 Sarkes Tarzian, Inc. / rectifiers I 53 TEXAS INSTRUMENTS INCORPORATED, 6000 Lemmon Ave., Dallas 9, Tex. I rectifiers I 53 Transitron Electronic Corp. I rectifiers I 53 United States Dynamics Corp. I rectifiers I 53 Westinghouse Electric Corp., Semi-Conductor Div. / rectifiers I 53 ticket information / USE: inventory control, sales and accounting analysis / rental, $185 per month; sale, $12,600; prices subject to tax / 51 REMINGTON RAND UNIVAC DIV., SPERRY RAND CORP., *a / Verifier: 90-Column Tabulating Card Automatic Verifier, Type 313 / DESCR: checks cards to determine whether they are correctly punched; 200 cards per minute; errors are flagged for easy identification / USE: to verify data entered by punching / $60 per month rental; $4168 sale; prices subject to-tax / 51 Underwood Corp. / Underwood-Samas punched card accounting machines and systems / 51 54. RELAYS (COMPUTER TYPES) 52. RECORDING PAPERS Alfax Paper & Engineering Co. / electrosensitive recording paper in rolls / 52 Miles Reproducer Co. / recording equipment / 52 _ Minneapolis-Honeywell Regulator Co. / recording papers / 52 Sanborn Co. / recording papers / 52 Technical Charts, Inc. / recording papers / 52 TYPATAPE, INC., 60 E. 42nd St., New York 17, N. Y. / Typatape / DESCR: The Typatape Recorder can be attached to most existing accounting machines, billing machines, adding machines, cash registers, etc. / USE: to provide a numeric common language record as a by-product / $900 / 52 53. RECTIFIERS Bradley Laboratories, Inc. / Selenium rectifier kits, high temperature rectifiers / 53 Christie Electric Corp. / rectifiers / 53 Continental Electric Co. / rectifiers / 53 Fansteel Metallurgical Corp. / rectifiers / 53 Federal Telephone & Radio Co., Div. of International Telephone & Telegraph Corp. / Power rectifiers Selenium, Silicon and Germanium stacks / 53 General Electric Co., Schenectady, N. Y. / rectifiers / 53 General Electric Co., Syracuse, N. Y. / rectifiers / 53 General Instrument Corp., Newark, N. J. I rectifiers / 53 Hoffman Electronics Corp. I rectifiers I 53 Hughes Products / rectifiers I 53 International Rectifier Corp. I selenium rectifiers, germanium rectifiers, silicon rectifiers I 53 INTERNATIONAL RESISTANCE CO., 401 N. Broad St., Philadelphia 8, Pa. I selenium rectifiers / 53 P. h. Mallory & Co., Inc. I rectifiers / 53 Metro Electronics Corp. I rectifiers / 53 Pacific Semiconductors, Inc. I rectifiers / 53 Pyramid Instrument Corp. I rectifiers I 53 RADIO RECEPTOR CO., INC., 240 Wythe Ave. , Brooklyn 11, N. Y. / rectifiers / 53 - 86 - Ace Relay Associates, Inc. / Acerelay I DESCR: hermetically sealed sub-miniature relays I USE: aircraft electronics equipment, computers, guided missile, and communications / $20 / 54 Allied Control Co. / relays I 54 AMPERITE CO., INC., 561 Broadway, New York 12, N. Y. I delay relays and regulators I DESCR: Thermostatic hermetically sealed. Delays available 2 to 180 seconds. Normally open or normally closed types, SPST I - I 54 AUTOMA TIC ELECTRIC COMPANY, Northlake, lli. / relays (telephone-type) I DESCR: small size, light weight, twin contact springs, very resistant to vibration, humidity, and extremes of temperature / USE: standard screw mounting; some are available with special mounting for tin-dipped printed circuit cards, or mounted on regular octal-type or industrial plugs. Wired or unwired I $3 to $8; hermetically sealed at approximately twice as much I 54 C. P. CLARE & CO., 3101 Pratt Blvd., Chicago 45, nl. / High Frequency Impulse Relay / DESCR: Type T Relay; highly sensitive relay; free from contact bounce; capable of following 2500 cycles per second with life measured in billions of operations / USE: in an analog computer / 54 C. P. CLARE & CO., *a I Mercury-wetted Contact Relays I DESCR: Type HG and HGP Relays; hermetically sealed, magnetically operated mercurywetted contacts; Form D contact arrangement; completely chatter-free; operate up to 100 cps; 5 amp. or 500 volts max. load; life over one billion operations; enclosed with coil in steel, vacuum-tube -type cover; octal plug base; biased or polarized versions also available I USE: in high-speed switching equipment requiring high pe-rformance I 54 C. P. CLARE & CO., *a I Multicontact Mercury-wetted Contact Relays I DESCR: Types HG2A, HG3A, and HG4A; 2, 3, or 4 "Form D" contact arrangements; operate up to 100 cps; no contact bounce; 5 amp. or 500 volts max. load; life over one billion operations; hermetically sealed, magnetically operated mercurywetted contacts enclosed with coils in steel cover; plug-in mounting standard / USE: in high-speed 54 Computers and Automation switching equipment requiring high performance / 54 C. P. CLARE & CO., *a / Power Relay / DESCR: Type J 18 Power Relay; provIdes increased current-carrying capacity by use of Code 18 (silver) heavy duty contacts riveted to the springs; long life; Increased adjustment stability provided by new hinge-type armature; rating of 10 amps, 27 -1/2 volts d-c / USE: to handle inrush current of 50 amperes for 50, 000 operations / 54 Comar Electric Co. / relays / 54 Cutler-Hammer, Inc. / relays / 54 Elgin National Watch Co. / Neomite relay, electronic switching device / 54 Essex Wire Corp., R. B. M. Div. / relays / 54 General Electric Co., Schenectady, N. Y. / 54 The Gerber Scientific Instrument Co. / relays / 54 Kepco Laboratories, Inc. / relays / 54 Mathematisch Centrum, Netherlands / relay computer; electronic computer / 54 North Electric Manufacturing Co. / relays, multicontact type / 54 North Electric Manufacturing Co. / telephone relays / 54 Phillips Control Corp. relays for computers, etc. /54 Potter & Brumfield Mfg. Co., Inc. / relays / 54 RADIO CORP. OF AMERICA, Components Div., Camden, N. J. / relays / 54 Relay Sales Inc. / relays / 54 SCHWEBER ELECTRONICS, 122 Herricks Road, Mineola, N. Y. / mico-miniature relays / 54 Stromberg-Carlson, Rochester, N. Y. / relays, computer / 54 Tally Register Corp. / Electromagnetic pulse counters and pulsed relays / 54 Union Switch & Signal Co., Div. of Westinghouse Airbrake / relays / 54 Ward Leonard Electric. Co. / relays / 54 Weston Electrical Instrument Corp. / relays / 54 55. RESISTORS Allen-Bradley Co. / resistors / 55 ALLIES' PRODUCTS CORP., P. O. Box 188, Kendall Branch, Miami, Fla. / all-using carbon deposited resistors and precision carbon deposited resistors / - / 55 Axel Bros., Inc., Electronics Div. / resistors / 55 Centralab, Div. of Globe-Union Inc. / resistors / 55 Chicago Telephone Supply Corp. / resistors / 55 Con-Elco / resistors / 55 Continental Carbon, Inc. / re"sistors / 55 Corning Glass Works / resistors / 55 Dale Products, Inc. / resistors / 55 The Daven Co. / precision metal film type resistors (Davohm Series 850) / USE: to fill in gap between wire-wound and composition type resistors / 36~ to $1. 44 / 55 The Daven Co. / R C Networks / $10 to $150 / 55 The Daven Co. / precision wire wound resistors / 45~ to $10 / 55 55 Dialight Corp. / resistors / 55 Eastern Precision Resistor Corp. / resistors / 55 Electra Mfg. Co. / resistors / 55 Erie Electronics Distributor Div., Erie Resistor Corp. / resistors / 55 General Electric Co., Roanoke, Va. / resistors / 55 Hardwick Hindle, Inc. / resistors / 55 Heath Co. / resistors / 55 INTERNATIONAL RESISTANCE CO., 401 N. Broad St., Philadelphia, Pa. / resistors / 55 Kelvin Electric Co. / resistors / 55 Lapp Insulator Co., Inc. / resistors / 55 P. R. Mallory & Co., Inc. / resistors, type AL / 55 Ohmite Manufacturing Co. / Miniature Wire-Wound Resistors / 55 Polarad Electric Corp. / resistors / 55 Pyrofilm Resistor Co. / resistors / 55 RESISTANCE PRODUCTS CO., 914 S. 13th St., Harrisburg, Pa. / precision wound wire resistors / bobbin type, high accuracy wire wound resistors made to meet MIL specification MILR-93A; standard resistance tolerance of 1% can be furnished with tolerance of .02% / USE: in computers and instrumentation, as resistance standards and in military equipment / 55 RESISTANCE PRODUCTS CO., *a / high megohm resistors / carbon type resistor having high stability; furnished in resistance values up to 100 million megohms; also furnished in hermetically sealed type; standard tolerance of 10%, 5%, and 3% also available / USE: in electrometer circuits, photocell circuits, radiation equipment, and as resistance standards / 55 RESISTANCE PRODUCTS CO., *a / high voltage resistors / Carbon film on steatite rod; available in various sizes for voltages from 3500 V up to 125,000 V; power ratings from 1 watt to 100 watts; resistances available up to 1 million megohms; standard tolerance of 15%, tolerances of 10%, 5%, 3% also available; matched pairs can be furnished with tolerance of 2% / USE: high resistance voltage dividers, bleeders, and high voltage power circuits, corona resistors, X-Ray equipment, etc. / 55 Sage Electric Corp., Dept. ED / resistors / 55 SCHWEBER ELECTRONICS, 122 Herricks Road, Mineola, N. Y. / resistors / 55 Shallcross Mfg. Co. / resistors / 55 Southwestern Industrial Electronics Co., Inc. / resistors / 55 Sprague Electric Co. / preCision and power-type resistors / 55 Stackpole Carbon Co. / resistors / 55 TEXAS INSTRUMENTS INCORPORATED, 6000 Lemmon Ave., Dallas 9, Tex. / precision resistors /55 Tru Ohm Products / resistors / 55 Ward Leonard Electric Co. / resistors / 55 Welwyn International, Inc. / resistors / 55 Weston Electrical Instrument Corp. / resistors / 55 56. RESOLVERS AMERICAN ELECTRONICS, INC., 655 W. Washington - 87 - Computers and Automation 56 Blvd., Los Angeles, Calif. / resolvers / 56 American Machine & Foundry Co., Electronics Div., Boston, Mass. / resolvers / 56 Bendix Aviation Corp., Eclipse-Pioneer Div., Teterboro, N. J. / resolvers / 56 Diehl Mfg. Co. / resolvers /56 Norden-Ketay Corp. / resolvers / 56 John Oster Mfg. Co. / fast response resolvers; servo torque units / 56 Weston Electrical Instrument Corp. / resolvers / 56 57. ROBOTS, SMALL BERKELEY ENTERPRISES, INC., 815 Washington St., Newtonville 60, Mass. / Small Robots / DESCR: small robots such as Simon, a miniature mechanical brain; Squee, an electronic robot f,(luirreI; Tit-Tat-Toe game-playing machine; Nim machine; Geniac electric brain construction kit, etc. / USE: in shows, lecturing, teaching, exhibits, displays, explaining / $10 to $4000, or rental / 57 58. SCANNERS 61. American Machine & Foundry Co., Electronics Div. , Boston, Mass. / scanners / 58 Giannini Datex Div. / scanners / 58 58.5. SEMIC0N.0UCl'OHS Amperex Electronic Corp. / semiconductors / 58.5 CBS-HYTRON, Div. of Columbia Broadcasting System, Inc., 100 Endicott St., Danvers, Mass. / electron tubes and semiconductors for computer and other uses / 58.5 Federated Semi-Conductor Co. / semiconductors / 58.5 59. SIGNALING CONTROLS MONROE CALCULATING MACHINE CO. - see "Computer Components" / 59 Union Switch &; Signal Co., Div. of Westinghouse Airbrake / railroad signaling and control systems / 59 60. 60 monly employed in measuring force strain, pressure, torque, etc. Computes by analog the effect of the various factors and presents the error direc tly in percent of correct magnitude / $3565 / 60 BENDIX A VIA TION CORP., Research Laboratories Div., P. O. Box 5115, Detroit 35, Mich. - see "Analog Computers" / 60 Curtiss-Wright Corp. / simulators, duplicators / 60 National Physical Laboratory, Control'Meahanisms and Electronics Div., England / simulators /60 The Newton Co. / training devices and simulators / 60 Servo Corp. of America / Servomation Building Blocks, Servoboard and Servoscope / DESCR: components enable simulation of actual laboratory and production conditions / USE: to develop prototypes and experimental models / - / 60 Southwestern Industrial Electronics Co., Inc. - see "Analog Computers" / 60 Sunshine Scientific Instrument Co. / Analog Field Plotter / DESCR: solves problems by means of electric flow patterns set up in a semiconductor / USE: to solve flow problems and mathematical functions, analogous to flow / $295 / 60 Union Switch & Signal Co., Div. of Westinghouse Airbrake / aircraft flight simulators / 60 STEPPING SWITCHES AUTOMATIC ELECTRIC COMPANY, Northlake, lll. / Stepping SWitches (types 44 and 45) / USE: for selecting a particular circuit from a group; an idle circuit from a group; consecutively performing operations in separate individual circuits; providing timed pulses at accurately spaced equal or unequal time intervals / $12 to $45; banks with taper-tab terminals at no extra charge / 61 C. P. CLARE & CO., 3101 Pratt Blvd. r Chicago 45, lli. / Stepping SWitches / DESCR: Spring-driven switches Types 11, 20, 26, 40 and 52 and DirectDrive Stepping Switches / USE: as uniselectors, or rotary SWitches, for completing, interrupting, or changing the connections in a succession of electric circuits in response to momentary impulses of current / 61 The Daven Co. / precision switches / $6.50 to several hundred dollar s / 61 Imtra Corp. / Bothway Uniselector / USE: selection, sequence control, counting (especially when subtracting is desirable), totaliZing, pulsing, step-bystep drive / $27.70 to $32.10 / 61 North Electric Mfg. Co. / rotary stepping switches /61 62. STORAGE SYSTEMS - see DELAY LINES, MAGNETIC STORAGE SYSTEMS SIMULATORS ALLEGANY INSTRUMENT CO., INC., 1091 Wills Mountain, Cumberland, Md. / Type K-7 Error Computer / Simulates error-producing factors involved in wire strain transducer systems com- Arenberg Ultrasonic Laboratory, Inc. / Ultrasonic solid delay lines / 62 EPSCO, INC., 588 Commonwealth Ave., Boston 15, (cont'd on page 98) - 88 - FAIRCHILD ENGINE DIVISION AND GAS TURBINE LABORATORY The Fairchild Engine Division is expanding its digital and analog computer facilities. This expansion offers genuine opportunities for engineering individuality. Positions available cover applied mathe- matics ... programming ... and administration in a computer and mathematics group. These positions are specifically reserved for those interested in diversified mathematical problems and computer application. Please contact FELIX GARDNER FAIRCHILD ~ ENGINE DIVISION COMMACK ROAD, DEER PARK, L. I., N. Y. A DIVISION OF FAIRCHILD ENGINE AND AIRPLANE CORPORATION - 89 - NATIONAL ANALYSTS, INC. Data Processing Services, Marketing Research, Operations Research ANNOUNCES The availability of computing equipment on a rental arrangement: IBM 705 with 40.000 digit memory. 2 TRC·S. 16 Tape units on line. UNIVAC IBM 650 card operated. with 2000 word memory and auxiliary alphabetic equipment. Full line of punch card equipment. Systems studios, programming services and computer application services. Advice on selection of data processing equipment to meet your automation needs. Send for our brochure on DATA PROCESSING SERVICES NATIONAL ANALYSTS, INC. ARNOLD J. KING, President 1015 Chestnut Street Philadelphia 7, Penna. *---------------------------------------*---------------------------------------* THE COMPUTATION CENTRE UNIVERSITY OF TORONTO invites Manager. Electronic Oata Processing applications for the position of MATHEMATICIAN (Ph.D.) on its staff. PROGRAMMERS-Bell Aircraft's expanding facilities and new building for Electronic Data Processing provide rewarding opportunities for numerical analysts in analyzing and programming problems for an I BM No. 704. This group will deal with mathematical computations arising in research and engineering in advanced airplane design, guided missiles, rockets and nuclear developm~nt. Bachelor's degree or higher in mathematics or physics required with experience in programming.for a stored program computer desirable. DATA PROCESSING ANALYSTS-Equallyadvantageous opportunities for those with heavy experience in accounting and punched card techniques and procedure writing. This group will plan procedures and techniques and do computer programming in preparing reports for improved managerial control of accounting and manufacturing processes. Salaries commensurate with training and experience, liberal benefits and excellent working conditions. Send resume to: Carl E. Diesen, Manager, Electronic Data Processing, Dept. 7E. BUftftAL.O BELL AIRCRAn CORPORATION, P. O. Box On., Buffalo 5, New York. Initial salary up to $7,500 according to qualifications. Specialisation in numerical analysis and experience in using a high speed machine essential. I N.V. * - 90- Applications should be addressed to the Director, Computation Centre, McLennan Laboratory, University of Toronto, Toronto 5. • Are you looking for IDEAS AND KNOWLEDGE about the Computer fieid? Schweber 4a4 «I Here are some of the articles and papers which w~ have published in recent issues of "Computers and Automation": @'4:1j:F1!J January. 1957 (vol. 6, no. 1): Modern Large-Scale Computer System Design -- Walter F. Bauer Logical and Combinatorial Problems in Computer Design -- Robert MCNaughton Transistorized Magnetic Core Memory -- Bell Telepho~e Laboratories Education for Automation -- Alston S. Householder Social and Public Relations' Responsibilities of the Computer Industry -- Jay W. Forrester High School Science Education -- R.W. Melville February: Computation for an Earth Satellite -Neil D. MacDonald New Computer Developments Around the World -Everett S. Calhoun Industry and the Automated Future: Problems Along the Way -- John Diebold Electronic Digital Data-Handling -- Howard T. Engstrom The Solution of Boundary Value Problems on a REAC Analog Computer -- M. Yanowitch March: Office Equipment Outlook -- Oliver J. Gingold . Group Behavior of Robots -- Manfred Kochen Robots and Automata: A Short History -- James T. Culbertson Automatic Computing Machinery -- List of Types Components of Automatic Computing Machinery -List of Types April: Divisi~n of Labor in Scientific Digital Computer Service Facilities -- L.N. Caplan Cam Profile Design With the Univac 120 -Louis D. Grey Suppl~menting Electronic Equipment With a Modern Communications System -- M.M. Koontz Use of a Computer for Certain Operations of Classification -- Andrew D. Booth May: Computer Market Survey -- Report No. 1 -E.C. Berkeley Reliability in Business Automatic Data Processing -- Herbert T. Glantz Automatic Search of Library Documents -- S. Richard Moyer AM PHENOL Connectors-AN-UG-RFBlue Ribbon-AN MiniaturesCoaxial Teflon Cables. ALLEN BRADLEY Resistors & Potentiometers I) BOURNS LABORATORIES Carbon & Wirewound TRIMpots OIHlMBYEf) OHMITE MFG. CORP. Resistors & Rheostats rHluzHunL~ VITRAMON, INC. Porcelain Dielectric Capacitors BACK COpy PRICE: If available, $1.25 each. except June 1955 and 1956, $6.00 'the June issue is the Computer Directory issue}. - - - - - Mail this coupon (or a copy of it}----, To: Berkeley Enterprises, Inc. I 815 Washington St., RI04 I I Newtonville 60, Mass. I Please send me the following back copies: I I I enclose $ in full payment. If not satisfactory, returnable within week for full re- 1 I fund (if in good condition) • I My name and address are attached. 'II «'4, ~ II • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • GENERAL ELECTRIC CO. Tantalytic Capacitors "JAN" CP-Oils ••• "'-~. CANNON ELECTRIC CO. AN-E-Environmental Miniature KO-U-D Series GS Hermetically Sealed INDUSTRIAL PRODUCTS CO. RF Coaxial Connectors MB Connectors FEDERAL TELEPHONE & RADIO RG Coaxial Cables • GENERAL ELECTRIC CO. Micro-Miniature Relays Normal factory delivery time averages 45 days. We use our knowledge and imagination to anticipate your requirements; and have the necessary components you need, on' hand in our regular stock, ready for immediate delivery. YOU CAN ALWAYS DEPEND UPON SCHWEBER! Schweber ELECTRONICS 122 Herricks Road, Mineola, l. I., New York PIONEER 6-6520 -91-~----------------------------------------~ Extra Precision Audiotape to track the Earth Satellite . : BULK SUBSCRIPTION RATES' These rates apply to prepaid subscriptions coming in together direct to the publisher. For example, if 7 subscriptions come in togeth~r, the saving on each one-year subscription will be 24 percent, and on each two-year subscription will be 31 percent. The bulk subsc'ription rates, depending on the number of simultaneous subscriptions received, follow: * Bulk Subscription Rates (United States) Number of Simultaneous ! Subscriptions I 7 or more 4 to 6 3 2 Rate for Each Subscription, and Resulting Saving to Subscriber One Year Two Years $4.20, 24% 4.60, 16 5.00, 9 5.25, 5 $7.25, ;31% 8.00,;.:24 ' 8.80,116 ,9:55, ' 9 : For Canada, add 50 cents for each year; outside of the United States and Canada, add $1:.i>0 for each year. ~. *-------------------*-------------------* The mall:-made "moon" which is to be launched during the International Geophysical Year will whirl through space at 18,000 miles per hour, actually circling the earth once every 96 minutes. To help scientists track the speeding sphere, a small radio receiver-transmitter-activated by impulses from earth~will periodically send out radio signals to ground receiving stations. These signals will be recorded on magnetic tape for immediate and subsequent analysis. The tape chosen for this unusual and significant recording assignment was Type EP Audiotape. The "extra-precision" which qualifies EP Audiotape, for important jobs like this one is achi~ved through a rigid program of quality control. Every facet of the manufacturing process, from the selection of raw materials to the final packaging operations, is scientifically supervised. Tpe result is an instrumentation tape which will meet the most exacting standards of uniformity and freedom from microscopic imp'erfections. In telemetry, electronic computers, or any other magnetic data recording work, Type EP Audiotape consistently delivers top performance. For more detailed information, write for Bulletin T112A. 1,: HIGH-CURRENT. REGULATED DC POWER SUPPLY FOR COMPUTER "PULSE'" LOADS Many of the country's leading computer manufacturers incorporate the Sola Constant Voltage DC Power Supply as a component in their equipment. It provides exceptional performance under intermittent, variable, or pulse loads of computer service. This moderately-priced static-magnetic assembly provides regulation within ± 1 % for line voltage variations up to ±10%. Ripple voltage is approximately 1 % (rms) or less. available stock ratings Stock Sola Constant Voltage DC Power Supplies are offered in six stock ratings ranging from 24 volts at six amperes to 250 volts at one ampere. Each is mounted on a standard 19" relay rack frame only 5%" high. Depth, frontto-rear, is 90/4". special design and assembly service In addition to the six stock sizes already discussed, Sola has designed numerous special ratings to meet the specific requirements of equipment manufacturers. A listing of 30 of the most useful ratings is available on request. Use of one of these available ratings may yield appreciable savings in delivery time; but inquiries are also invited on other electrical characteristics and other mechanical arrangements. For further information, request Bulletin 51F-CV-235 from: AUDIO DEVICES, INC. 444 Madison Ave., New York 22, N. Y. * - 92 - SOLA ELECTRIC CO. • 4633 W. 16th St., Chicago 50, III. * News Items ELECTRONIC COMPUTER CHARTS GAME - TEACHES BUSINESS EXECUTIVES HOW TO MAKE DECISIONS -FERRANTI HIGH SPEED 'APE READER A new "game" simulating the world of business has been introduced by the American Management Association. .. which uses an electronic computer to keep score. Five teams of business executives, given an equal start in a multi-million dollar "Monoply-like" market for Widgets, compete to amass the most assets. The decisions of each team on what to do with available cash, plant capacity, priCing, are fed each 20 minutes into the computer . .. which then calculates what share of the market each team has captured. The game, utilizing an IBM computer, is to be the core of a course in "how to make decisions". By next year some 4000 game-playing top-executives will have been exposed in this way to one small facet of the fantastic capacity of computers. ***** SUMMER COMPUTER COURSES Ann Arbor. A group of six courses "in Digital Computers will be given at the University of Michigan College of Engineering from August 19 to August 30 of this year. The emphasis in these courses is on modern computational techniques. They are designed primarily for persons already experienced in some aspects of computer technology. For information, write to Engineering Summer Conference, 2038 East Engineering Building, Ann Arbor, Wlichigan. Detroit. - The Fifth Summer Computer Program of Wayne State University ( Detroit) is being given at the Computation Laboratory in two parts this year. The first half, "Introduction to Computers and Their Application, and Data Processing in Business and Industry" was offered early in June. The second half of the program, "Industrial, Management, and Scientific Applications of Computers" will be offered September 9 to 14. This course is planned to follow directly a three-day Conference on Matrix Computations also at the Computation Laboratory. For information, WI'ite to A. W. Jacobson, Special Summer Program, Wayne State University Computation Laboratory, Detroit 2, Michigan. The Ferranti High Speed Tape Reader accelerates to full speed within 5 milliseconds and stops within, 3 milliseconds. It has been in use at leading computer installations for over two years and has achieved a sound reputation for simplicity and reliability in regular operation. -IJi' ( 1) Mark II model reads at speeds up to 200 characters per second, and stops the tape from full speed within a character positionwithin .03 inch. The tape is accelerated to full speed again in 5 milliseconds and the following character is ready for reading within 6 milliseconds of rest position. (2) Mark IIA model reads at speeds up to 400 characters per second, and stops within .1 inch. VERSATILE Both models read either 5 level, 6 level or 7 level tape by simple adjustment of an external lever. WiMf4'W The tape is easily inserted without complicated threading. Lap or butt splices are taken without any difficulty. The same tape may be passed thousands of times without appreciable tape wear. The optical system has no lenses or mirrors to get out of alignment. Friction drive is independent of sprocket hole spacing. LARGE OUTPUT Amplifiers are included for each channel, including a special squaring circuit for the sprocket hole signal. Output swing between hole and blank is greater than 20 volts. Dimensions: 9'( x 11 %" x 11 1/.&" Weight: 371bs. For use with long lengths of tape up to 1000 feet, spooling equipment operating up to 40 inches per second for take-up or supply is available separately. FERRANTI ELECTRIC, INC. (cont'd on page 94) 30 Rock.feller Plcoa - 93 - New York 20, N. Y. * NEWS ITEMS (cont'd from page 93) News Itells ROBOT MACmNIST The Air Force has just accepted delivery on the first electronically controlled device to turn out titanium blades for jet engines. This special-purpose machine tool, made by the Douglas Tool Company of Detroit, cuts out the intricate twisted airfoil section of a blade, ready for final polishing, at the rate of one every 11 minutes - some 4 to 5 times as fast as the machines it is designed to replace. Industry finds a "FOUNTAIN OF YOUTH" in this SELF.REJUVENATING CLARE RELAY ***** 50 TON MILLING MACIllNE CONTROLLED BY CODING TAPE To increase speed of production of preci'sion parts by a 50 ton milling machine, the Glenn L. Martin Company has purchased a Bendix built autpmatic tapefed control system~ . The. controller senses the program punched into the tape, and actuates the massive machine tool which £urns out parts automatically for Matador missiles and SeaMaster airplanes. Ponce de Leon failed in his quest for a "fountain of youth," but modern design engineers find rejuvenation an accomplished fact in CLARE Mercury-wetted Contact Relays ... capable of billions of operations. Contacts of these relays are constantly renewed. By capillary action~ like that of a lamp wick, a new film of mercury coats the contacts with every make and break. The magnetic switch is sealed in a highpressure hydrogen atmosphere in a glass capsule. Surrounded by the operating coil, the capsule is enclosed in a vacuum-tube-type steel envelope. Unlike ordinary relay contacts, these contacts never wear out; never get dirty; never lock or weld; never get out of adjustment; never bounce. ***** ANALOG TO DIGITAL CONVERTER FLASHES ACTUAL TmCKNESS OF STEEL STRIP Faster, more accurate reading of finished strip steel thickness is reported by the 80-inch strip mill of U. S. Steel Fairless Works, Fairless Hills, Bucks Co., Pa. The method uses a device which converts passage of X-rays through the mOving strip into an actual thickness readout. The varying intensities of the X-rays are recorded by a scintillation detector; the meter readings are then converted into electrical voltages by a computer device; the electrical voltages are then summed, and applied to an analog-to-digital converter, which displays the actual thickness in thousandths of an inch in a row of 3 illuminated figures. ~tRead-outs" at several points are also printed through a printing cycle controller. Drawings (left) from stroboscopic photographs show the cycle. (a) Filament of mercury forms between the contacts as they separate. (b) This becomes narrower in cross section and (c) finally parts at two points, allowing a globule of mercury to fall out. Mercury flows up the capillary path to replace the amount lost and restore the equilibrium. (d) The momentary bridging of the parting contacts-and the extremely fast break that ends it-minimizes the arc and adds greatly to contact load capacity. Contact closure between the two liquid surfaces bridges mechanical bounce and prevents any chatter from appearing in the electrical circuit. Send for CLARE Engineering Bulletins No. 120 and 122. Address C. P. Clare & Co., 3101 Pratt Blvd., Chicago 45, Illinois. In Canada: C. P. Clare & Co., 659 Bayview Avenue, Toronto 17. Cable Address: CLARELA Y. ***** * -94- * Make your own tiny genius computers GENIA,CS AND TYNIACS Scientific - Entertaining - Instructive - Safe with our improved construction kits including all parts, and wipers making all switches work wellthe improved kits made by the originator of all Tyniacs, most Geniacs, Simon (miniature mechanical brain), Squee (electronic robot squirrel), etc. Diagram of the versatile multiple switch, which can be assembled to make any switch combination from 16 decks of 2 positions, to 2 decks of 16 positions. K 9: GENIAC AND TYNIAC ELECTRIC BRAIN KIT: Contains 64-page Geniac manual, 48-page Tyniac manual with introduction to Boolean Algebra for sWitching, templates, and over 400 parts (including 6 multiple switches) for making over 45 arithJ.netical, logical, reasoning, computing, puzzlesolving and game-playing machines (see partial list below). Each Geniac and Tyniac displays intelligent behavior, runs on one flashlight battery, requires no soldering (all connections with nuts and bolts). This kit is the outcome of 7 years of our design and development of small robots, and demonstrates in instructive and easily-put-together models the fascinating variety and power of computing and reasoning circuits ..•••.••• $17. 95 OOMPUTER RESEAROH PLANNER A few of the 46 GENIACS and TYNIACS Logic Machines: Joe McCarty's Logic, Syllogism Machine, Intelligence Test. Game Playing Machines: Tit-Tat-Toe, Nim, Black Match, Sundorra ~ Computers: Adder, Subtracter, Multiplier, Divider. Cryptographic Machines: Secret Coder, Secret Decoder, Lock with 65, 000 Combinations. Puzzle-Solving Mc.chines: Fox, Hen, Corn and Hired Man, Space Ship Airlock, Bruce Campbell's Will, Submarine Rescue Chamber, The Uranium Shipment and the Space Pirates. NCR Research offers an exceptional opportunity to a man who has three or more years experience in the electronic computer industry. This important opening is with a small staff group that reports to top Research management in one of the world's most successful corporations. This special team establishes research objectives and evaluates research ideas in terms of company requirements, both present and futureprovides information that aids the direction and timing of research activities. - - - - Mail this Request (or a copy of it) - - - - -. INVESTIGATE NCR's research program! We have other interesting openings . Write or wire: Director of Scientific Personnel, Section MC, The National Cash Register Company, Dayton 9, Ohio. I Berkeley Enterprises, Inc. 815 Washington St., R 104 Newtonville 60, Mass. Administrative ability is important since liaison assignments require close personal contact with many different NCR divisions. From them, and from sources outside the Company, he will obtain clearcut indications from a scientific point of view, of future system and component demands of the business machines market. This man should have one or more degrees in the fields of electrical or electronic engineering, physics, chemistry, or mathematics. I• MGfl THE NA TlONAL CASH REGISTER COMPANY Please send me K 9. I enclose in full payment. (If in I good condition, returnable in seven days for full : refund.) My name and address are attached. I * - 95 - PHYSICISTS & MATHEMATICIANS * MANUSCRIPTS CflNTBIBllTB We are interested in articles, papers. ref.erence information. and discussion relating to computers and automation. To be considered for any particular issue, the manuscript should be in our hands by the fifth of the preceding month. Ordinarily, the length should be 1000 to 4000 words. Ttl T.E ......,.. ....-,' \, OF THE ," ,......... " ,J>, , NllCLBAB " , ,, ....... , , } Articles. We desire to publish articles that are factual, useful, under~tandable. and interesting to many kinds of people engaged in one part or another of the field of computers and automation. In this audience are many people who have expert knowledge of some part of the field, but who are laymen in other parts of it. ·C~nsequently a writer should seek to explain his subject, and show its context and significance. He should define unfamiliar terms, or use them in a way that makes their meaning unmistakable. He should identify' unfamiliar persons with a few words. He should use examples. details, comparisons, analogies. etc., whenever they may help readers to understand a difficult point. He should give data supporting his argument and evidence for his assertions. We look particularly for articles that explore ideas in the field of computers and automation, and their applications and implications. An article may certainly be controversial if the subject is discussed reasonably. A suggestion for an article should be submitted to us before too much work is done. I ''''-' POWBBEII PLANB Possibilities of almost unlimited range and speed for aircraft give top priority to the work now underway at the Aircraft Nuclear Propulsion Department of General Electric. The product stage has been reached, and physicists and mathematicians-with or without previous nuclear experience-are needed immediately for assignments in: Thermodynamics and Cycle AnaJysls Reactor Analysis • Shield Physics Nuclear Instrumentation Digital and Analog Computers Theoretical Physics Numerical and Programming Analysis Technical Papers. Many of the foregoing requirements for articles do not necessarily apply to technical papers. Undefined technical terms, unfamiliar assumptions, mathematics, circuit diagrams, etc., may be entirely appropriate. Topics interesting probably to only a few people are acceptable. Your nuclear knowledge will be supplemented through a special series of in-plant courses that will give you a sound basis for work in this field. The emphasis here is on research. Technical assistance is liberal, facilities modern and extensive. Responsibility is fully delegated. Reference Information. We desire to print or reprint reference information: lists, rosters, abstracts. bibliographies, etc., of use to computer people. Your professional development is encouraged in every way by on-the-spot management. There are opportunities for graduate study on a Full Tuition Refund Plan. And frequent merit reviews keep advancement based on ability and performance, not number of years on the job: Discussion. We desire to print in "Forum" brief discussions, arguments, announcements, news, letters, descriptions of remarkable new developments. etc., anything likely to be of substantial interest to computer people. Comprehensive Benefits Relocation Expenses Paid Occasionally, we print or reprint science fiction which explores scientific ideas and possibilities about computers, robots, cybernetics, automation, etc.~ and their implications, and which is at the same time a good story. Choice of Two Locations: Cincinnati, Ohio and Idaho Falls, Idaho Please write in confidence, stating salary requirements to: J. R. Rosselot P. O. Box 132 Cincinnati, Ohio GENERAL Payments. In many cases, we make small token payments for articles and papers, if the author wishes to be paid. The rate is ordinarily ~¢ a word, with a maximum of $20, and half that if it has been printed before. L. A. Munther P. O. Box 535 Idaho Falls, Idaho e ELECTRIC * - 96 - * GLOSSARY E X pert sag r e e . . . You Can't Beat a Bryant OF TERMS in the COMPUTERS field AND of AUTOMATION e Over 480 terms defined e Careful definitions i most of them expressed in plain words understandable to persons who have newly come into the computer field GENERAL ELECTRIC eMany examples of meaning .4th cumulative edition, as of Sept. 19, 1956 Bryant magnetic Drums • Reprinted from the October 1956 issue of "Computers and Au tomation" for semi·permanent storage of data in digital computers or for use as delay lines . • If not satisfactory, returnable within week for full refund (if in good condition) The outstanding performance of Bryant magnetic memory drums is attested to by their purchase by such outstanding companies as General Electric, Radio Corporation of America and Remington Rand. Designed to your specific requirements, Bryant drums have a guaranteed accuracy of drurp runout of .00010" T.I.R. or less. Belt drive or integral motor drive with speeds up to 100,000 R.P.M. or more. Capacities to 5,000,000 or more binary digits. $1.00 postpaidi 10% discount on orders for 20 or more copies --Mail this coupon (or a copy of it) - -. To: Berkeley En terpri ses., Inc. 815 Washington St., R 104 Newtonville 60, Mass. Please send me copy (ies) of the GLOSSARY, 4th edition, I enclose $ in full payment. High Speed Motors, Spindles and Drums Bryant designs and manufactures electro-mechanical components for precision operation to your requirements, up to 200,000 R. P. M. If you have a problem in applying high speed rotating equipment to your product, write Bryant today. Returnable if not satisfactory. Name________________________ Address,_ _ _ _ _ _ _ _ _ __ BRYANT GAGE and SPINDLE DIVISION * P. O. Box 620 ... K, Springfield, Vermont, U.S.A. DIVISION OF BRYANT CHUCKING GRINDER CO. BUYERS' GUIDE (cont'd from page 88) Computers and Automation 62 Mass. / Model CB-601, CB-602 Magnetic Core Buffer Storage / DESCR: a number of encapsulated magnetic storage elements and associated drive circuitry / USE: digital data j)ource to printers, tape recorders, c VI VI 111111111111111 1_________________ ! :<~ INQUIRY I ~r mCD ------- .... --,: I I mZ ; m IZ. _ g .;J., _________ - - - - - - - - - - -'- - - - - - - - - - - - - - - - - - - - - -100 - a quick check of indent-depth tells you this elect1~ical connectiol1/ is safe! There's no way to check a soldered connection-without destroying that connection! The modern Burndy crimping method affords a quick check for electrical and mechanical safety-simply by measurement of this depth of indent. The cross-section view (right) shows how this indent is designed to coin conductor and connector into intimate contact. .. for a strong connection, as electrically sound as the conductor itself. And the depth of indent is controlled by the installation tool! Unlike solder which can weaken at high temperatures frequently encountered by modern equipment, the Burndy crimped connection with its wide tolerance endures in all environments. Too-Burndy electrical connections get rid of human error-no skill or training is required. The control is engineered into the connector and the tool! Put a crimp on rising production costs !-send for the full story on Burndy crimp-type connections, today! Norwalk, Connect. Export: Philips Export Corp. first piece checlt production run Toronto, Canada ADVERTISING The purpose of COMPUTERS AND·AUTOMATION is to be factual, useful, and understandable. For this purpose, the kind of advertising we desire to publish is the kind that answers questions, such as: What are your products? What are your services? And for each product, What is it called? What does it do? How well does it work? What are its main specifications? Following is the index and a summary of advertisements. Each item contains: Name and address of the advertiser I subject of the advertisement I page number where it appears I CA number in case of inquiry (see note belo~ • The Arnold Engineering Co., Marengo, Ill. I Tape Wound Cores I Page 99 I CA No. 19 Audio Devices, Inc., 444 Madison Ave., New York 22, N.Y. I Audiotape I Page 92 I CA No. 20 Bell Aircraft Corp., I Employment Opportunities I Page 90 I CA No. 21 Bryant Chucking Grinder Co., Springfield, Vermon t I Magnetic Drums I Page 97/CA No. 22 Burndy Corp., Norwalk, Conn. I Burndy Crimptype Connections I Page 101 I CA No. 23 C.P. Clare & Co., 4719 West Sunnyside Ave., Chicago 30, Ill. I Relays I Page 94 I CA No. 24 Electronic Associates, Inc., Long Branch, N.J. I Electronic Digital Voltmeter I Page 104 I CA No. 25 Fairchild Engine & Airplane Corp., Deerpark, L.I., N.Y. I Employment Opportunities I Page 89 I CA No. 26 Ferranti Electric, 30 Rockefeller Plaza, New York 20, N.Y. I Ferranti High Speed Tape Reader I Page 93 I CA No. 27 General Ceramics Corp., Keasbey, N.J. I Magnetic Memory Planes I Page 2 I CA No. 28 General Electric Co., Aircraft Nuclear Propulsion Dept. I - I Page 96 I CA No. 29 General Transistor Corp., 1030-11 90th Ave., Richmond Hill, N.Y. I Transistors I Page 8 I CA No. 30 International Business Machines, R-E Division, 590 Madison Ave., New York 22, N.Y. I Employment Opportunities I Page 3 I CA No. 31 Lockheed Missile Systems Division, Box 504, -102 - INDEX Sunnyvale. Calif. I Employment Opportunities I Page 7 I CA No. 32 National Analysts, Inc., .1015 Chestnut St., Philadelphia 7, Pa. I Data Processing Services, Computing Equipment Rental/Page 90 / CA No. 33 National Cash Register Co., Dayton 9, Ohio I Employment Opportunities / Page 95 I CA No. 34. National Cash Register Co., Electronics Div., 1401 East El Segundo Blvd., Hawthorne, Calif. I Employment Opportunities I Page 103 I CA No. 35 RCA Components Div., Camden, N.J. I RCA Ferrites I Page 5 I CA No. 36 The Ramo-Wooldridge Corp., 5730 Arbor Vitae St., Los Angeles, Calif. I Employment Opportunities I Page 89 I CA No. 37 Schweber Electronics, 122 Herricks Rd., Mineola, L.I., N.Y. I Components I Page 91 I CA No. 38 Sola Electric Co., 4633 W. 16th St., Chicago 50, Ill. I Components I Page 92 I CA No. 39 University of Toronto, Computation Centre, Toronto, Ontario, Canada I - I Page 90 I CA No. 40 If you wish more information about any products or services mentioned in one or more of these advertisements, you may circle the appropriate CA Nos. on the Reader's Inquiry Form on p. 100 and send that form to us (we pay postage; see the instructions). We shall then forward your inquiries, and you will hear from the advertisers, direct. If you do not wish to tear the magazine, just drop us a line on a postcard. •.... 'tbW' . ~:.~::::: ; \~;:~:::~:~r (·.. ··l ... ............................ '. ~.: ~. ....................• .......... southern california opportunity for an exceptionally creative senior systems engineer high-paying work in research for advanced digital computer systems If you have several years of broad digital computer experience, you may fill an important job here in analysis of major research problems for advanced business data-processing systems. You will have considerable freedom to originate projects (the more original the better) dealing with advanced techniques in design and application of computers. A background in abstract mathematics, operations research or information theory would be helpful, but a steady flow of ideas (mostly good) is more important. Genuine creativity will be well rewarded both in salary and professional opportunity. Because we're a small, select research-design group, you can't get "lost in the crowd." And because our major activity is the continuing development of business computer systems for worldwide commercial markets, your career development is steady and certain. Ultra-modern laboratories in a pleasant, ideally located Los Angeles suburb. Progressive management, full benefits. We believe this is the job'you'll want for good. send resume or contact D. P. Gillespie, Director of Industrial Relations, PLymouth 7-1811 THE NATIONAL CASH REGISTER CO. ELECTRONICS DIVISION 1401 East EI Segundo Boulevard Hawthorne, California *TRADEMARK REG. U.S. PAT. OFF· ANOTHER FIRST FOR EAI AN ELECTRONIC DIGITAL VOLTMETER The new electronic Digita l Voltmeter, Model 26-26B from Electronic Associates, Inc ., enables readouts at speeds formerly thought impossible. A unique transistoriz ed digital comparator converts analog inputs to the binary coded d ecimal sys tem in an average time of 0.05 seconds. Delays in r eadout time are reduced by a factor of 100. Readout accuracy is maintained at 0.01 Volts. 'These adv a nces are made possible because of this Digital Voltmeter's compl et ely electronic and transistorized design. The progressive measuring and digitizing circuitry r equir es no moving parts at all. This results in extreme speeds, noisel ess operation, and the greatest reliability. The Digital Voltmeter is a nother first in EAI's Program of PACE. For complete details on this , and on any of the Computation Centers maintained by Electronic Associates, Inc. in Princeton, N. J ., Los Angeles, California, or Brussels, Belgium, write to: Electronic Associates, Inc., Long· Branch, New Jersey, Dept. CA-6
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