195512
195512 195512
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. Digital Compute rs in Eastern Europe . . . Alston S. Householder Automafic Airways . . . Henry T. Simmons Roster of Organ izations in the Computer Field (cumulative) Mathematical Analyst Keith Kersery loads jet transport flutter problem into one -qf Lockheed's two 701 'so On order: two 704's to help keep Lockheed in forefront of numerical analysis and production control data processing. With two 701 digital computers already in operation, Lockheed has ordered two 704's to permit greater application of numerical analysis to complex aeronautical problems now being approached. Scheduled for delivery early next year, the 704's will replace the 701 'so 704's and 701's speed Lockheed research in numerical analysis Much of the work scheduled or in progress is classified. However, two significant features are significant to career-minded Mathematical Analysts: 1) the wide variety of assignments created by Lockheed's diversified development program and 2) the advanced nature of the work, which falls largely into unexplored areas of numerical analysis. Career positions for Mathematical Analysts Lockheed's expanding development program in nuclear energy, turbo-prop and jet transports, radar search planes, extremely hlghspeed aircraft and other classified projects has created a number of openings for Mathematical Analysts to work on the 704's. Lockheed offers you attractive salaries, generous travel and moving allowances which enable you and your family to move to Southern California at virtually no ~xpense; and an extremely wide range of employe benefits which add approximately 14% to each engineer's salary in the form of insurance, retirement pension, etc. Those interested in advanced work in this field are invited to write E. W. Des Lauriers, Dept. MA-31-12. LOCKHEED BURBANK AIRCRAFT CORPORATION • CALIFORN1A DIVISION CALIFORNIA - 2 - COMPUTERS CYBERNETICS Vol. 4 , No. • AUTOMATION AND ROBOTS • AUTOMATIC CONTROL December, 1955 12 ESTABLISHED SEPTEMBER, 1951 ARTICLES Di gital Computers in Eastern Europe Automatic Airways REFERENCE · .. A. S. Householder · .. H. T. Simmons 8 10 INFOR~ATION Roster of Organizations in the Computer Field Components of Automatic Computing Machinery - List of Types A utomatic Computing Services - Roster Automatic Computing Machinery - List of Types Index, Vol. 3, No. 10 (Dec. 1954) thru Vol. 4, No. 11 (Nov. 1955) New Patents Magazines Related to Computers and Automation - Roster 13 29 30 32 36 43 44 FORU~I Greeting to Computers Conferences Over Election Day ... Jerry Svigals High-Speed Searching Techniques for Scanning Literature · .. T. C. Hines Bibliography Compilation - Request for Assistance · .. R. R. Seeber, Jr. 5 5 6 6 4 5 54 Tne Editor's Notes Index of Notices Advertising Index Advisory Commi ttee: Samuel B. Wi 11 iams, Herbert F. Mitchell, Jr., Justin Oppenheim Editor: Edmund C. Berkeley Assistant Fditors: Eva DiStefano, Jewell Bown, ~~eil ~.:acdonald, F. L. Walker Con tr:i bu ting Edi tors: Andrew D. Booth, John M. Breen, ,Johr. rr, III, Alston S. Householder, Fletcher Pratt Publisher: Berkeley Enterprises, Inc. West 11 St., New York 11, N. Y. - Algonquin 4 7675 Washington St., Newtonville 60, Mass. - Decatur 2 54~~ or 2 3Q 28 ~6 R1~ Advertising Representatives: San Francisco - W. A. Babcock 605 Market St., San Francisco 5, Calif. Los Angeles - Wentwo:th F. Green, 439 So. Western Ave., Los Angeles 5, Calif. elsewhere - the Publ~sher (,D~lPurF.RS AND AUTOMATION is published monthly. Copyright. 1955 by Berkeley Enterprises, Inc. Subscription raten: for one year, $10.50 for two years, in the United States: $6.00 for one year, 5U.50 for two years, in Cana'da; $6.50' for one year, $12.::1) for two years elsewhere. Bulk subscription rates: see page 12 • Advertisin g rat e s : see page 54 • $5.50 Entered as second class matter at the Post Office, New York, N. Y. - 3 - THE EDITOR'S NOTES FREE USE OF TORONTO'S COMPUTER FOR RESEARCH At the Eastern Joint Computer Conference in Boston, Dr. C.C. Gotlieb of the Computation Centre at the University of Toronto, and your editor talked about a certain problem that would be a good one to run on a computer. I told him that some time I wanted to work on coding and running Part 2 of the problem of translating English spoken language into properly spelled English words. Part I of the problem of course consists of recognizing spoken sounds and noting them down as English "phonemes":the sounds which carry meaning, such as "p" as in "cup", "ng" as in "sing", the "eh" in "very, and the longer "eh" in "vary". This part of the problem, I believe, is still beyond reach for the next few years. But Part 2 of the problem is to take English expressed in phonemes, and translate it using a computer into properly spelled English words. Of course, we Ivould need a translation into machine programming of the rules which a champion speller of English uses (including indications of context so as to dis tinguish between "him" and "hymn". Dr. Gotlieb said that they had a policy at the Computation Centre at the University of Toronto of allo1ving free use of their Ferranti computer Ferut, to a reasonable extent, to any investigator who was not going to profi t personally from the research: this in spi te of the fact that they regularly charge $100 an hour for the use of their computer on commercial problems. He invited the putting of this problem on Ferut. In addition, Dr. Gotlieb said tlBt they were planning to tie in their computer by teletype with many other universities, in Canada, so that each could have access to the machine and put its Otvn problems first hand onto the machine. In this way they could make their one machine helpful to the whole of Canada for research and instruction. ,READER'S INOUIRIES We were talking the other day to a brilliant and practical man in an advertising agency, with the object of convincing him that advertising in "Computers and Automation" would be a good idea for his client. He said to us: (Don't l"1ork forward vice to the field.) will put $ into· the want?" He said: "A "Ahvays Ivork backlvard. -- in terms of giving a serAsk yourself instead: Who magazine, and what do they magazine is an economic tool for an advertiser. He wants to get a fair return on his money. He wants to be sure that his ad did some useful work. Your argument needs to be "From your ad in such-and-such issue of our magazine, you received so many in quiries from so many people, and they are important people, and good prospects." And we talked about controlled circulation magazines, that are sent free to their recipients, and the great volume of inquiries that flow out of some of them. Irrespective of whether all of the philosophy of controlled circulation should apply to "Computers and Automation", and irrespective of whether we should surrender our primary objective, to be as useful.as possible to computer people, it is a fact of life for any magazine that it must earn its way. Earnings come from (a) subscriptions and (b) advertising. So in this issue we have put back into "Computers and Automation" a reader's inquiry form (p.54), and Ive ask all of you, our readers, to take a good look at the ads in each issue, and if they are interesting to you, and refer to products which you might use, to send us inquiries for forwarding to advertisers. If 10% of our subscribe~ (200 out of 2000) sent us inquiries each month, the effect would be profound. There is no doubt that good evidence of the response to advertisements in our magazine will make a great difference in the reception of "Computers and Automation" among advertisers, and the resulting size, quality, and price of the magazine. THE WELL-LAID PLANS OF MICE AND MEN •.. When we started to put this issue together, which was planned to be an issue full of reference information including an up-to-date "Glossary", we found that there was a very great deal of information to be put into it. The new cumulative "Roster of Organizations in the Computer Field", -- brought up to date from a questionaire expressly for this issue,-- by itself covered over 16 pages. Also, some important and timely articles appeared: Would it be better to delay them a month, or to delay some of the reference information? We decided that it would be more to the advantage of computer people and our readers to print the articles promptly -- the news about digital computers in Eastern Europe and the news about automatic airways -- and postpone the balance of the reference information. A good pmrt of this will appear in the January issue 0 f "Computers and Automation". - 4 - THE EDITOR'S NOTES REFERENCE INFORMATION: VOLUNTEERS In this issue I'Je publish the following cumulative editions of reference information: Roster of Organizations in the Computer Field; Roster of Automatic Computing Services; Magazines Related to Computers and Automation; Automatic Computing Machinery -- List of Types; Components of Automatic Computing Machinery-List of Types. In the January issue I'Ve plan at least the following cumulative Glossary of Terms in the Field of and Automation; List of Automatic $. GREETING TO COMPUTERS December 25 is coming, and so we should like to wish you all: ERR Y HAP PPY +XMAS +NEW =RSMEY +,Y EAR 1\1 = H R RES to publish editions: Computers Computers. and 86986 14756 94379 55431 70. But we think the time has come I'Jhen we should enlist more colleagues, like Hans Schroeder and Raymond R. Skolnick, in "Patents" and Gordon Spenser and Jewell Bown in "Books and Other Publications",to help the editors conduct various inventories of reference fuformation. Are there any volunteers? and what .are your suggestions? A GATEWAY TO SCIENCE (Solve ~or the digits -- each letter stands for jus tone digit 0 to 9. -- This is a Numb Ie, a number puzzle for a nimble mind; for hints for solution -- if a computer needs hints -wri te us. The solution t'Jill appear in January.) *------------------*-------------------* FORUM The readers of "Computers and Automation" may be interested to know that we have begun in a small way to publish a second magazine "A Gateway to Science", a quarterly for the present. The first issue, Nov. 1955, 16 pages (mos tly advertis ing, let us Ivarn you) is being sent to some 7000 persons who have made inquiry of us, in the last four years, not necessarily computer people. The expanding frontier of the world today is science. New avenues for advance are appearing everywhere. Some of the questions we plan to discuss in "A Gate1'Jay to Science" are: What are the new fields of science? How does one enter them? What are the powerful concepts and exciting possibilities that will shape the future? What are references to get· information from? If you Ivould like to see "A Gateway to Science", tell us. CONFERENCES OVER ELECTION DAY Jerry SVlgals I would like to use your Letters to the Editor column to ,comment on the dates of last Joint Computer Conference, in Boston, Nov. 7 to 9. I think thavwhoever scheduled the meeting ignored the fact that it coincided with Election Day. I for one, feel, that this is a very unfortunate oversight. I hope that it willnoc reoccur in the future. *----------- *----------- * INDEX OF NOTICES For Information on: THE COMPUTER DIRECTORY. '19'55': SPECIAL OFFER Effective Dec. 1, the base subscription rate for "Computers and Automation" changes from $4.50 to $5.50. To soften the effect of the increase a little, we have decided that each person who subscribes (or renews his subscription) to "Computers and Automation" at the new subscription rate $5.50 prior to December 31, 1955, may at the same time buy a copy of "The Computer Directory, 1955" (the June issue, 164 pages) for $1.50 if he so requests and sends payment for it. Since the. regular price is $6.00, this is a saving of three quarters or $4.50. - 5 - Advertising Index Advertising Rates and Specifications (revised Nov. 10) Back Copies Bulk Subscription Rates (revised Nov. 10) Manuscripts (revised Nov. 10) Reply Form (new) Roster Entry Forms Special Issues (revised ~ov. 10) See Page: 54 52 50 28 37 54 48 31 Address Changes: If your address c han g e s, please notify us giving both old and new address, and allow three t'lteeks for the change. Forum Forum HIGH-SPEED SEARCHING TECHNIQUES FOR SCANNING LITERATURE BIBLIOGRAPHY COMPILATION -REQUEST FOR ASSISTANCE Theodore C. Hines Chief, Extension Dept., _ Washington Public Library, Washington, D.C. Robert R. Seeber, Jr. Watson Scientific Computing Laboratory New York, N.Y. I am enclosing a Who's Who entry form. Please renew my subscription when it expires. I am sorry to see that your rates are rising, but then what isn't? Besides, as you point out, you have become fatter and oftener. MY personal interest in computers is primarily in their application to high-speed searching techniques for scanning the literature of various subjects. I'm sure you're familiar with such applications, and with the problem of literature searching in general, which ties in so closely with computers and automation. Much has been done, particularly in the field of chemistry, but much more needs doing. Consistent application of such techniques as that developed by Dr. Ralph R. Shaw (the Rapid Selector), or suggested by Dr. V. Bush to meet the Patent Office's search problem, is badly needed. Since the problem is truly basic, I wish that more space could be devoted to it in the maga2:'ine. At any rate, I'm sure that it would be helpful if you could call the attention of your readers to American Documentation, which carries many articles which would be of interest to them. I've ventured to write up an annotation, which follows: Shera, Jesse H., editor / American Documentation Institute, in cooperation with the School of Library Science, Western Reserve University / quarterly since 1950, photooffset, about 60 pp., $6.00 per year. Covers many phases of documentation. Many articles on machine searching of literature, including application of symbolic logic to indexing processes, use of computers to do searching based on the association of ideas, the application of such techniques in specific organi2:ations. Excellent though limited abstracts of pertinent material a regular feature. Both technical and more general articles. Of much more interest to readers of Computers and Automation than title would indicate to those unfamiliar with documentation. - END - The Watson Laboratory is preparing a new edition of its "Bibliography on the Use of IBM Machines in Science, Statistics, and Educatiori~ this edition is to include references to articles .published before January 1956. We would like to receive before January 20 copies of articles, or references to articles, which might be included in the new edition of the bibliography, which is scheduled to come' out at the end of January. We are interested both in articles published in journals, and m articles not published in journals but which -are available from the author or his organi2:ation .. The articles we are seeking are those which discuss specific problems and their solutions on IBM machines, and which are of a scientifi~ statistical, or educational nature. We do not include business applications. We hope the new edition of the bibliography will be as complete as possible in order that it may give maximum assistance to mathematicians, scientists, programmers, and coders. We feel that the circulation that "Computers and Automation" has among people in the computer field would enable us to uncover articles that we might otherwise miss .. We would appreciate it if any reader 0 f "Computers and Automation" would send any references or copies of articles to: Librarian International Business Machines Co~ Watson Scientific Computing Laboratory 612 West 116 St. New York 27, N.Y. The bibliography when ready will be available free of charge by writing to the Watson Laboratory. We shall appreciate very much any assistance you or your readers can give us. - END - CONTENTS New Standard Series New Technical Advances - New I. Prec;sionAudi.oDelayUn~s Materials - New Techniques. '.. 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SENIOR COMPUTER PROBLEM ENGINEER: The Research Laboratories is a small, separate division of a well-established reputable engineering organization, exclusively devoted to research and development of a wide variety of interesting, progressive and highly imaginative projects. qpportunity for graduate study. ANALOG COMPUTER PROBLEM ENGINEER: SENIOR ANALOG COMPUTER PROBLEM ANALYST: 5 - 7 years experience in dynamic analysis utilizing analog computers, must be able to direct problem from origin through computer set-up and operation, and include final analysis. Advanced degree desirable with good mathematical or physics hackground. - 7 - To assume responsibility for problem operation of an afternoon'shift (4:00 PM -12:45). 4 - 5 years of experience in computer operation. Responsible for problem set-up, checkout, operation and evaluation. Degree in math or physics. 3 - 4 years experience in computer operations and problems set-up. Degree in math, physics or EE necessary. Send resume to: Personnel Department Bendix Aviation Corporation Research Laboratories Division 4855 Fourth Avenue' Detroit 1. Michigan DIGITAL COMPUTERS IN EASTERN. EUROPE ALSTON S. HOUSEHOLDER Oak Ridge National Laboratory Oak Ridge, Tennessee In Darmstadt, Germany, at the end of October, the outside world generally IV~~ fir s t provided with authoritative information on ~ ital computer development behind the Iron Cur.tain. At the same time promises we~e given of further exchange of information. The occasion was the Darmstadt Conference on Electronic Digital Computers and Information Processing', 6nentioned in "Computers and Auto'mation", Aug., 1955, p. 4) ~ orQani2:ed by P~of essor Alwin Walther and held at the Technische Hochschule in Darmstadt. About 600 pe r son s took part. Advance regist~ation had been requested; in the printed list of participants there were men from the United States, Gre a t Britain, Italy, Switzerland, France, Belgium, Netherlands, Denmark, Sweden, Austria, andeven Spain and Finland. A supplementary page gave the names of two Czechs, Svoboda (well known in the U. S.) and Oblonsky, and of two R~ia~ Lebedev and Basilevsky, whose registrati~a~ ived too late for inclusion in the list pr~L The Conference was scheduled to open on Tuesday, Oct. 25, 1955, to continue Wednesday and Thursday and· to be followed on Friday by tours. Svoboda and Obl'onsky arrived Tuesd ay evening but the Russians had not appeared. Eventually a telegram came from Berlin say in g they had been unable to obtain American visas to get through Berlin, but that they still hoped to make it. Dramatically, on Thursday e~ ing, after the Conference proper had end ed, there appeared the two already named, together with two others, Ktorov and Novikov, who acted as interpreters. Although many had left and most others were planning to leave, a special session was arranged for Saturday morning at which Lebedev and Basilevsky lvere invited to speak for th e benefit of any who might find it possible to remain. This writer had the good fortune to be among these, as was de Vogelaere of the University of Notre Dame. The two papers by Lebedev and Basilevsky had been translated into German and were read in this language by the two authors; following them, there was a short question period caccied on with the aid of the interpreters since Lebedev and Basilevsky spoke mainly Russmn. Generally speaking, the questions were answered, - 8 - quite freely except in one instance where the question concerned the use of transistors. The reply to this was that the question had no direct bearing upon the paper under discussion • Since the proceedings of the Conferenc e. are to be published in full, no attempt will be made to summarize these or other papers of the Conference in any detail, but only to pick out a few of the salient points. BESM The machine discussed by Lebedev is called the BESM (the Russian ini tials for "highspeed electronic computing' machine" would be BEVM and the replacement of the V by S seems ,to' represent a concession to euphony). It compares favorably in speed and capacity with any American or other European machine other than IBM's NORC (Naval Ordnance Research Cakulatorl BESM was said to have been in operation for about half a year, and about 75% good ~ration time is claimed for it. It appears, further, that no other machines just like it are planned. Associated with it is a staff of 500 people, but no classification or other characterization of the staff was given. The machine operates in binary floating point, with 6 digits for the exponent and 33 for the mantissa, inclusive of the sign digi~. Cathode ray tubes are used for the fast memor~ but they are said to resemble those used in tie Whirlwind more than they ·do the Williams tubes. In this there are 1024 words. There is, in addi tion, a special memory of 376 'w 0 r d's_ by means of germanium diodes, to which access is in some sense limi ted and t'lhose function is not clear, but i t see~ to be used for ,storing special subroutines in frequent use. The commands are triple-address. Addition and subtraction requIre from:.!7 to 18 2 microseconds, according to the normalization; mul tiplicatio,n, "270 microseconds;, d i vision, 288 microseconds. Tpere is auxiliary storage on a magnefic drum with 5 blocks of 1024 wor~ in each, and on 4 magnetic tapes. On the drum the mean waiting time is 40 microseconds, mUr which the rate of transfer is 800 w 0 r d s per second, ·while the rate to or from tape is 400 words per second. On an "important problem" DIGITAL COMPUT·ERS IN EASTERN EUROPE which required the use of both drum and tape, the machine operated at an average rate of 7 to'8 operations per millisecond. In conversatIon, Professor Lebedev remarked that they consider th,e use of a triple-adiress code to double the effective com p u ting speed of a machine. He did not elaborate on this statement. For commands, the 39 bits are grouped in11 for each of the three addresses, 5 fo r the operation, and the remaining one is used in normalization of the result. There are 3L distinct operations possible. td The input and output' are by means of pWlmed cards which are said to be grouped in to "books", but little else was said about this. The machine has been used for problems in ~ science and also for industrial problems (one questioner asked if any problems c~me fro m commercial organizations and was told that in Russia such things do not exist). URAL The machine reported by Basilevsky ~more on the order of an IBM 650; presumably there are more than one, under construction at le~ It is called the JRAL, or more fully, the "Universal" electronic digital machine, although the short name is apparently not formed from ini tials of words. It has a magnetic d rum memory of 1024 l"lords and an auxiliary tap e memory of 40,000 l'v'ords, each word being of 3) binary digits. It' is single-address, fix e d point. Somewhat apologetically, its e e med, the speaker excused the use of fixed poi n t calculation by the remark that it was expected that in the majority of cases the machine waUd be used in the solution of many problems of similar type where the scaling would be f air 1 y standard. It was also pointed out that in any event the machine could be programmed to do its own scaling. It is said that positive numbers are directly coded and negative numbers "inversely'~ This seems to mean that negative numbers are repres~Sed by their complements l'v'i th respect to 2-2 ,or by the "one's" complement. There are a total of 30 distinct operations in the URAL. The arrangement of registers is s u c h that operations such as taibi and con tin u e d multiplications al a2 a3 ••• can be carried out without the need,for s~oring intermediate results. Each operation requires 10 milliseconds except for division, l'v'hich requires 40, and a "normalization" operation which requires 20 (I have in my notes that multiplication requires 30, but I cannot find this statement inthe original paper). Transfers between magnetic drum and ma gnetic tape can take place at the rate of 4500, words per minute., Input and output are on pun-· ched paper tape. Input is at the rate of 4500 words per minute, output 300 words per minute. These seem to be the principal facts revealed. Nothing was said about any other possible developments. It was clear, however, that they were well informed on developments in America, in particular. They were quite fascinated by the NORC. The import of some of their questions was not clear, possibly because of linguistic barriers. Professor Lebedev was much interested in the NORC, and having asked about the cos,t, and why the same money was not invested in several' slower machines instead of the one, 1 arge . one, he next seemed to reverse his point of view, asking if more NORCs would be built (the reply was in the negative, trudng the question as phrased, but was probably u nfair and not a correct answer to the question intended), and expressing great surprise, saying that surely in America there must be many problems. Fortunately or unfortunately, the conversation was interrupted at this point and never resumed(suggestions from readers are solicited). Other Developments In contrast to the Russians, who seemed completely informed on developments here, were the Czechs, who seem to have been almost completely uninformed about developments either here or in Russ ia. Even Lehmann from East Germany, who reported on a small computer at Dresden, had been given an expense-paid trip to Moscow to see the BESM. Cut off fr.om all 0 u t- ' side information, the Czechs had built at Prague a small magnetic drum computer called SAP O. It has storage for 1024 words of 32 binary digits each, and floating point binary representation with 6 digits,for the exponent. The first striking feature is the use of 3 u nits operating in'parallel for checking. This has the obvious advantages that in SOIOO cases a n error is readily corrected by the machine itself without stopping. Another curious feature is the use of a five-address code; the usual three addresses with alternative addresses for the next instruction. This machine has hem described in Czech, wit~ an abstract in English, in. "Stroj e na Zpracovtinl Informaci". A second machine is under construction in Czechoslovakia. It might be mentioned t hat theoretical work on the synthesis of relay networks has been carried out under Svoboda's direction and results are published in the same publication. It is also of interest that the computer SAPO is being used in the synthesis a the networks to be used in the new computer. (continued - 9 - on page 31) AUTOMATIC AIRWAYS HENRY T. SIMMONS Washington, D.C. (Reprinted with permission from "TI;e Wall Street Journal", Oct. 25, 1955) Airway traffic police are working up longrange plans to avert traffic jams in the sky. If the plans work as expected, the airliner of the future will be flown from the ground by a complex mass of long-range radar and e Ie ctronic brains -- with the pilots hardly lifting a finger. Jamming the airways will be a dense, fastmoving stream of air traffic, routed with splitsecond accuracy. There will be eve n 1 e s s danger of air collision than now, fewer flight cancellations in bad weather and fewer delays in landing and taking off at any time. This automation of the airways won't com e tomorrow, and probably not until the late 1960's. Meantime, human pilots will operate muc has they do today and the air traffic controllers of the .Civil Aeronautics Administration will rely on conventional radio navigation aids and on increased, improved use of radar to handle swelling sky traffic. First All-Radar Airway Right 'now they're planning to set up the nation's first all-radar airway on the crOOIded Norfolk-to-Boston route; when it's 'comple te d in two years or so, it will let the traffi c controllers keep in touch with planes visually on radar screens, instead of by radio, ove r the full 500-mile route. The advantages predicted for this radar hookup give a glimp s e of the much greater feats expected eventually. Says a C.A.A. expert: "Today, if we have two planes flyi n g on the same route at the same altitude, they must be at least 10 minutes apart. This could mean a separation of 20 to 100 miles, depending on the speed of the planes. Wi th radar, we could cut this to jus t five miles. By cutting down on separation, we can move planes off the groun d faster, bring them in faster and increase the capacity of the airways." / But more radar won't be enough to handle the growing load. Even now, air traffic jams are such that multimillion-dollar airliners must often queue up on runways to await takeoff or stack up over airports for ~n hour 0 r two to await landing. Scheduled airlines, along with their trade group, the Air Transport Association, are push- - 10 - ing for improved air traffic control. Speaking of the drive for more automatic air control, an American Airlines spokesman says: t'It is one of those things that goes by steps, and it takes a million stepstoget to the end of the line. Every day we're trying to improve our air traffic situation and each step is along a well-planned route into the ul timate' automatic control set-up. Economically it is esse nt i a 1 ; otherwise there won't be any airline business. Already we've run out of air space east of the Mississippi." By 1965, Government men predict, domestic airlines will haul 70 million passengers, more than twice last year's 32 million, and othe r traffic will zoom upwards by a like speed. Jet's Impact The urgency of better traffic con t r 0 1 . will be vastly increased by the impending advent of jet airliners, flying close to double the 300-miles-an-hour speed of most pres e n t transports; the speedy jets must be fitted into the same flight pattern with the slower planes. Wi th tremendous future traffic in min d, the C.A.A. men have taken the first steps i n a program which may bring automation t o t h e airways. They've persuaded the Air Force t 0 give them a peek at the inner workings of its vast, super-secret SAGE project for continental air defense. SAGE stands for Semi-Automatic G r 0 u n d Environment. That's the Air Force's ti tIe for an enourmous network of telephone and mic r 0wave radio circuits it's building to link its farflung radar outposts with giant electronic brains located in command centers in potential target areas. Purpose of the $2.4 bi 11 ion project is to convert the continent's air defense system from a manual to a largely auto~ matic operation. When co~leted in the m i d1960' s, it will be a deadly weapon for the Air Defense Command in knocking down enemymtackers. F.C.C. & A.T.& T. Jus t 1 as t week, the Federal Communicmions Commission told the American Telephone & Telegraph Co. it could start construction mseven Eastern states on the first of an estimat e d 25,000 communications circui ts to be 1 e as e d AUTOMATIC AIRWAYS to the Air Force for 10 years as part of th e SAGE pr9ject. A.T. & T. and other companies of the Bell System will finance constructio n of the new circui ts and will be paid up to $240 million a year when the project is finished. Details of the closely-guarded SAGE project are meager, but the system will worksonething like this: An approaching enemy airc raf t will b e spotted by a radar station, located possibl y in the Arc tic, in Canada or on a picket s hip or "Texas Tower" off the nation's coas ts. The attacker's course and speed will be automatically transmitted to a distant electronic calculator at a ground control center. Jetfi~~ or guided missiles will be assigned to down the intruder. The electronic brain will take over control of the intercepting weapons and direct them toward the epemy. When the target is in range, the lightning-fast thinking machine will fire the fighter's guns or rockets and pull it away from the target to avoid a collision. In the case of a guided missile, it will be steered directly into the target. SAGE wouldn't be used in this way for routine air traffic, of course. But the C.A.A. men figure that if a remote electronic bra in can keep track of fast-moving, evasive e ne my bombers and knock them down before they can do any damage, it can be modified to direct peaceful air traffic as well. Just how this might be done is still i n the realm of speculation. One ofiiciru advances this idea: Equip civil aircraft with speci a 1 "automatic pilots" geared to respond to radi 0 impulses from electronic brains located on the ground. The accurate thinking machines c oul d "see" air traffic for hundreds of mi 1 e s wi th their radar "eyes" and mathematically plot the courses of the aircraft under their gui d anc e so that there would be no danger of collision. The mechanical brains would actually fly th e aircraft even to the point of take-o f f a n d landing. Just where human pilots would fit in this picture is hard to say. Presumably they'll continue to ride in the cockpits to t a k e a hand in case of unforeseen eroorgencies. Not even the most dedicated believer in a i rw ay s automation is quite ready to say pilots wi 1 1 no longer be necessary. A joint C.A.A.-~ilitary team of experts will give SAGE a thorough study to determine its possibilities for air traffic contro 1 • The civilian experts are optimistic tha t th e giant continental defense project can be adapted to peaceful air traffic control while carrying out its military tasks, thus making in unnecessary to build a separate control .s y s t e m for civil or routine military flights. - 11 - A spokesman for the Air Transport Association in Washington says it has been participating in exploratory meetings with the C.A.A. and the mili tary. "We are very much intereste d in the SAGe project; it_might be capable of coping wi th the traffic control probl em," he states, though he notes some adaptations of the SAGE system would probably be required. The C.A.A. experts advance several reasons for their optimism that t~is'could be done. For one thing', they point out that regular air traffic would not have to be directed with the fan'tastic precision required for interceptors or missi les pursuing enemy bombers. For this reason, they suggest that only a s m al 1 part of the vas t sys tern would have to be devoted to air traffic control. Another argument they offer is that SAGE, to be fully effective, should control all air traffic instead of just the lethal interceptors and guided missiles to be sent aloft a g a ins t enemy bombers. Should an attack come, SAG E presumably could clear routine air traffic from danger areas1with its left hand while deali ng with the enemy with its right hand. The Cost Argument But their biggest argument for extendi n g SAGE automation to routine air traffic control is cost. Even if the aviation planners fin d the principles of SAGE are perfectly geared to civil aviation, and that they can build a similar system of their own, they see little likelihood of talking Congress into appropriating the billions of dollars they would need to set up a peaceful counterpart alongside of SAG E Such a request would look mountainous when compared wi th the es ti rna ted $ 85 million which C. A. A. now has invested in airways navigation rods and communications facilities. For this reas 0 n , the civil aviation men are particularly anxious to persuade the Air Force to share the benefi ts of SAGE with them. Just how the Air Force will take tot h e overtures from the civilian agencies a c r 0 s s the Potomac from the Pentagon isn't c 1 ear, mainly because the fliers are highly secretive about the big project. It's to be expected the airmen will resent any inroads by civilians in their all-military project, but that doe s n' t mean ,they will resist proposals to share SAGE. They have worked closely with C.A.A. in the past to provide up-to-date navigation aids and they have a big s take in seeing this program continued since about half of all airplane flights in the U. S. are by military aircraf~. To improve· traffic control ih the yea r s before automation can reach the airways, C.A.A. planners are pushing ahead with some less glamorous but no less important projects. AUTOMATIC AIRWAYS themselves. It will broadcast a po sit i ve identification signal much stronger than the returning radar beam now bounced off the airplane from the long-range ground radar devices. It will permi t the traffic men to deter m in e which of several planes they want to control wi thout going through the laborious job of instructing pilots to turn this way and that and watching their radar screens to see wbich plane image moves -- thus determining by trial and error which aircraft they want to instruct. Most significant of these is the plan to set up an all-radar airway on the Norfolk-toBoston route. It will have stations at Norfolk, Washington, New York and Boston, and possibly at Atlantic Ci ty, N. J., and Providence, R. 1., as well. Most of the equipment will be provided by the Defense Department at first, but C.A.A. hopes eventually to provide its 0 w n equipment. C.A.A. has been using radar for many years, but present equipment, located at about 30 of the nation's larger airports, is g en era 1 1 Y limi ted to a range of about 50 miles and i s used principally to direct the final approach of aircraft coming in to land. Present r a dar installations aren't strung togeth er in any system like that proposed for the Norfolk-toBoston route. In addi tion, C.A.A. is studying devic e s for transmitting flight clearances automatically to larger aircraft, wit h the p i l o t acknowledging the instructions merel y b y pressing a button. It is looking in t 0 electronic memory devices, computers and 0 the r specialized equipment with the aim of cutting down human error. The C.A.A. men hope to have the first leg of the new airway, between Norfolk and Was h,ington, operating by February, and to get th e rest of it into operation within tw 0 years. If they get all six stations into opera tio n, they say, traffic controllers will be able to "see" airplanes a~ any al ti tude above 2, feet along the entire route. - °°° EN D - *-------------------*------------------* Help for Controllers The scheme to radarize the airways wi 1 1 give a big lift to C.A.A. 's route controllers. These are the people who follow the course 0 f each aircraft from ground control centers and make sure that a block of air space is reserved for it during flight. For the most part, they now keep in touch with pilots by radio. Since they can't see the planes they are d irec t ing, they must provide for a generous separation of aircraft, particularly in bad weather. BULK SUBSCRIPTION RATES These rates apply to subscriptions coming in together direct to the publisher. For example, if 5 subscriptions come in together,' the saving on each one-year subscription will be 24 percent, and on each two-year subscription will be 31 percent. The bulk subscription rate s, depending on the number of simu1 taneous s u bscriptions received, follow: Wi th air traffic climbing year by year and the speed of new aircraft increasing, the separation standards presently required for a i rcraft could be a maj or obstacle to air 1 i n e growth. "Imagine ,how it would restrict traffic if we had to provide ten-minute separation between jet aircraft -- a block of air space 100 miles long would need to be reserved for each jet, " C.A.A. boss F. B. Lee said in a recent speech. The answer to this threat is "radar, radar and then some more radar," he declared. Playing it by ear will have to 'go -- vision is the watchword for our future air traffic contro 1 • We will have to give the controller an instantaneous picture of the traffic in his sector." A particular gadget which C.A.A. hop e s will lighten the' chores of its traffic control~ 1ers is the "transponder." This is a special radar transmi t ter to be bui 1 t into air c r aft Table 1 -- Bulk Subscription Rates (Uni ted States) Number of Rate for Each Subscription, and Simultaneous Resulting Saving to Subscriber Subscriptions One Year Two Year 10 or more 5 to 9 4 3 2 $3.80, 31% 4.20, 24 4.60, 16 5.00, 9 5.25, 5 $6.60, 7.25, 8.00, 8.80, 9.55, 37% 31 24 16 9 For Canada, add 5,0 cents for each year,; 0 u tside of the United States and Canada, add $1.00 for each year. - 12 - ROSTER OF ORGANIZATIONS IN THE COMPUTER FIELD (Cumulative, information as of November 10, 1955) The purpose of this Ros ter' is to report organizations (all that are known to us) in the. computer field: organizations making or developing computing machinery or data-processing machinery; organizations supplying computing services or consulting services in the computer field; and organizations supplying components or services used in the computer field if significantly related to the field (for example, magnetic drums would be such a component, while octal sockets would not be). Entries. Each Roster entry if complete contains: nare of the organization, its address I telephone number I description of its main ac tivi":' ties, main products in the field, any comments I size (expressed in number of employees), year established, nature of its interest. in the computer field, types of activities it engages in. T~e last four items are reported in abbreviations, which am explained below. In cases where we did not ha v e complete information, we have put down what w e have. Accuracy. We have tried to make each entry accurate to the extent of information in our possession. , We shall be grate f u 1 for any m '0 r e information or additions or corrections that anyone i,s kind enough ,to send us. Al though we h a v e' tried to be accurate and complete, we as sum e no liability for any statements. expressed or implied. Abbreviations The key to the abbreviations follows: Size Ls Large size, over 500 employees . Ms Medium size, 50 to 500 employees ,Ss Small size, under 50 employees (no. i n parentheses is approx. no. of employees) When Established Le Long established organization (1922 0 r earlier>, ' Me Organization established a "medium" ti me ago (1923 to 1941) Se Organization established a' short time ago (1942 or later> (no. in parentheses i s year of establishment) Interest in Computers and Automation Digital computing machinery Ac Analog computing machinery Ic Incidental interes ts' in computing ,machinery Sc Servomechanisms Cc Automatic control machinery Me Automatic materials handling machinery Dc Activi ties Ma Manufacturing activity Sa Selling activity Ra Research and development - 13 - Ca Ga Pa Ba Consulting Government activity Problem-solving Buying activity ,(Used also in combinations, as in RMSa "research, manufacturing and sell i ~ g , ac ti vi ty") *C This organization has kindly furnished information expressly for the purp 0 s e s Roster and therefore our report is likely more complete and accurate than otherwise be the case. (C for Checking) us with of the to b e migh t ROSTER ACF Electronics, Division' of ACF Industries, Inc., 800' No. Pitt St., Alexandria, Va. I King 8-44401 *C ' Co'ders, dec oders,' s ervo-sys tems, dis pIa y equipment, special instrulOOnts. Ms (375)' 5eC1954} Ic RMSa ACF Industries -- SEE ACF Electronics AND Avio n Division Adalia Limi ted, Castle Bldg., 1410 'Stanley 5 t., Montreal, P. Q., Canada I Marquette 2281 ' Research and consulting services in the application, design, and construction of computers. 5s Se(1952) DAc RCa Addressograph-Mul tigraph Corp~, 1200 Babbitt Rd., Cleveland 17, Ohio I Redwood 1-8000 land elsewhere I *C , ,Electronic facsimile printers for high-speed. copying of typed data· contained in unit card records. Addressograph sensing plates, composed automatically'from punched tape,which will automatically list and total figures. Data written at speeds up to 30 forty-character lines per second; as a byproduc t, codes automatically punched into punch cards. Transfer printers. Ls(2500) , Le(1903) Ic RM 5a Aero Resear~h Ins trument Co., Inc., 1040 W. Grand Ave., Chicago 22, Ill. I Taylor 9-64001 *C . . Data reduction' and data gathering systems. 5s(3O} 5e(1953} Dc RMSCa Aircraft-Marine Products, Inc., 2100 Paxton St., Harrisburg, Pa. I Harrisburg 4-0101 I *C Patchcord programming systems; patchcords, automatic wire terminators, tap e r' pin s (single and multiple), capacitors, etc. Ls (1600) Me (1941) 'Ic RPt6a Alden Electronic and Impulse Recording Equipment Co., Alden Research Center, Westboro, Mas s. I Westboro 467 I *C Facsimile recording ·equipment and facsimile' components. "On-the-5pot Fac t Fi n de r's " , pulse records, automatic curve plot t e r s • Recorder that monitors any machine or action and records automatically ~ Ms 5e Ic RMSa Alden Products Co.,' 117 No. Main St.,' Brockto,n, ROSTEn OF ORGANIZATIONS Mass. / Brockton 160 / *C General and specific components for d igi tal and analog computing machinery; plug-in components, sensing and indicating com ponents, magnetic del ay 1 ine uni ts, magnetic s tora g e cores, etc. Ms (300) Me (1930) Ic RMSa Alfax Paper and Engineering Co., Alden Res e arc;h Center, Westboro, Mass. / Westboro 467 / *C ./ Electrosensitive recording papers. Ms Se (1942) Ic RMSa R. C. Allen Business Machines, Inc., 678 Front Av. Grand Rapids 4, Mich. / Glendale 6-8541 / *C ' Adding machines, bookkeeping machines, cas h registers, gyro instruments, etc. Ls(1250) Me (1932) Dlc R~ a Alpha Computing, Inc., 436 S. Sepulveda Blvd., Los Angeles 49, Calif. / Granite 27787 / *C Computing service using both medium and large computers for scientific and eng in e er i n g problems. Ss Se (1955) Dc CPa American Automatic Typewriter Co., 2323No.Pulaski Road, Chicago 39, Ill. / Everglade 4-5151 / *C Pneumatically controlled progr am min g and testing devices. Automatic selective typing equipment (Autotypist). Testing machines for typewri ters, adding machines, calcula tin g machines. Ms(lOO) Le(1869) Ic RMSa American Ele~tronics, Inc., 2112 Chico Ave., E 1 Monte, CalIf. / Cumberland 3-5331 / *C Analog and digital computers; servomechanisms; analog computer components, resolvers, synchros, servo motors, etc. Ls(600) Se(1945) DASc RMSa American Machine and Foundry, Electronics Division, 1085 Commonweal th Ave., Boston, Mass. / Algonquin 4-4234 / *C , Mag~etic ~hift register, digital dat~-handling equlpment~ data readout and display, s e rv 0mechanisms to specifications. Digital servo with 215 quantum units per revolution (shaft to digi tal conversion). Ls '(800) Se (1948) Dc RMSa Amperi te Co., Inc., 561 Broadway, New York 12, N.Y./ Canal 6-1446 / *C . Delay relays and regulators for computers, etc. Ms (75) Me (1923) Ic RMSa Ampex Corp., 934 Charte'r St., Redwood City, Calif./ Emerson 8-1471 / *C Magnetic recording of data. Input-outp u t equipment. Digi tal and analog mag net i c storage devices. Ls(800)' Se(1944) Ic RMSa Andersen Laboratories, Inc., 39-C Talcott R 0 ad, West Ha~tford 10, Conn. / Adams 3-4491 / *C Solid ultrasonic delay lines, computer memories, etc., for computer applicatio n s. Ss (30) Se (1950) . Ic RMSa Anelex Corp., Concord, N. H." and 150 Causeway St. , Boston 14, Mass. / Richmond 2-3400 / *C High-speed printer (1800 charac ters per second) , numerical and alpha-numeric up t 0 64 characters and line-lengths up to 120 ch a racters. Ms Se(1952) Dlc RMSa Applied Science Corporation of Princeton, P.O.Box 44, Princeton, N. J. / Plainsboro 3-4141 / ';:C Radio telemetering and automatic data conversion. Devices for automatic and semi-automatic reduction and analysis of telemetering and radar data. Analog read-in and read-ou t devices. Digital storage and c ompu ti n g elements. MADAM (Mul tipurpose Automatic Data - 11 - Analysis Machine). Ms(85) Se(1946) DAc RCP~a Argonne National Laboratory, Box 299, LeDDnt, 111:/ Lemont 800 / *C Maker of Avidac and Oracle automatic digital computers and other computers, for ow nus e and other government agencies. Developin g "George", new high speed computer, to be tested January, 1956. Ls(2500) Me (1942) DAlc RGPa Arma Corp., Old Country Rd., Garden City, L. I., N. Y. / Garden City 3-2000 / *C Electronic fire-control apparatus. Analog computer components including res 0 1 v ers , induction generators, etc. Basic weapon and control sys terns, navigational sys tems, precision remote control systems. Analog computer components. Ls (6000) Le DA'5c Rrv5Pa Armour Research Foundation, Illinois Institute of Technology, 10 West 35 St., Chicago 16, Ill. / Calumet 5-9600 / *C Magnetic recording. Digi tal, analog and datahandling equipment. Automat ic contro 1 machinery. Servomechanisms. Instrumentation. Computing service: analog, digital; h a v e Goodyear Elec tronic Digi tal Dif fer en t i a 1 Analyzers, Two Channel Electronic Function Generator, card programmed calculator. Ls (1200) Me (1936) DASCc RCPa The Arnold Engineering Co., Marengo, Ill. / C h icago, Andover 3-6300 / *C Magnetic materials for computer compone n ts, etc. Ms(425) Me (1936) Ic RMSa Askania Regulator Co., 240 E. Ontario St., Chicago, IlL / Whi teh a 11 4-3700 / *C Hydraulic arid electronic automatic contr 0 1 equipment. Use analog computers; manuf a c ture servomechanisms and automatic controls. Computing service: analog; Philbrick analog computer. Ms(400) Me (1930) SCc RMSPa Atlas Precision Products Co., 3801 Castor Ave., Philadelphia 24, Pa. / Jefferson 5-3700 / *C Mechanical analog computers, geared mechanisms, servos, etc. Ms(300) Me (1928) Alc MSa Atomic Instrument Co., 84 Mass. Ave., Cambridge 39, Mass. / Eliot 4-4321 / *C Analog to digital converters, pri n t e r s, counter components and controls; shell velocity computation and recording; etc. Ms (100) Se (947) DACc RMSCa Audi 0 Devices, Inc., 444 Madison Ave., New Yo r k 22, N. Y. / Plaza 3-0973 Magnetic tape guaranteed defect-free. ?s ?e Ic RMSa Audio Instrument Co., Inc., 133 West 14 St., New York 11, N. Y. / Oregon 5-7820 / *C Electronic analog time-delay units from 10 to 10,000 milliseconds; logarithmic amplifiers. Specialized passive computer which corrects for film nonlineari ty in photometric Ss(lO) Se(1949) ASCc RMSCa work, etc. Audi 0 Produc ts Corp., 2265 Wes twood Blvd., Los Angeles 64, Calif. / Bradshaw 2-4266 / *C Digi tal plug circuits, I.e., triggers, cathode followers, binary scalers, etc. ~~ (125) Se (1948) Ic RMSa The Austin Co., Special Devices Division, 76 9th Ave., New York 11, N. Y. / Watkins 4-3630 / *C Systems and devices for automatic control in ROSTER OF ORGANIZATIONS commerce and industry; analog, digital, damhandling, servo, electronic, e1ectromemanical. Shaft position indicators and systems; cathode ray indicators and systems. Ls(division,l60; company 25,000) Le(division, 1943; company, 1878) DASCMs RMSa Automacite Applique, 10 rue Saulnier, Par is ge, France Automatic control apparatus. Cc RMSa Automatic Electric Co. 1033 West Van Buren St., Chicago 7, Ill. / Haymarket 1-4300 / *C Automatic electrical systems, telephone equiproont, relays, stepping swi tc)les, etc., for computing machinery and cODmlunications companies. Automatic control components. Ls (6000) Le(892) ICc RMSa Automatic Signal Division, Eastern Industries, Inc., East Norwalk, Conn. / Temple 8-4791 / *C Automatic volume-density traffic controllers· digi tal and analog computers; servomechanis~. Ms(3QO) Me (1928) Ic MSa Automation Consultants, Inc., 1450 Broadway, New York 18, N. Y. / Chickering 4-7800 / *C. Consul tants in electronic systems and devices J including automatic information-h and 1 i n g • Ss Se(1953) Dc Ca Automation Engineers Co., Division of Associated Industrial Consultants, 246 West State Street, Trenton, N. J. / Export 3-2602 / *C Consul tants in automatic control mac h i nery and automatic materials handling equipment. Ss(20) Me (942) DACMc Ca Autron Engineering, Inc., 1254 West 6th St., Los Angeles 17, Calif. / Mutual 3237, 3331 Engineering design, development, and manufacture of electronic and electromechanical controIs and automatic control systems, devices, and instruroonts. ?s Se(1956) Cc RMSa Avion Division of American Car and Foundry Industries, Inc., 299 State Highway No. 17, Paramus, N. J. / Colfax 1-4100 / *C Analog computing machinery. Magnetic recorders, amplifiers, electronic choppers, t est equipment, servomechanisms, automatic control machinery, etc. Ls(600) Se(1946) ASCMc RMSa Baird Associates, 33 University Road, Camhridg e, 38, Mass. / University 4-0101 / *C Spectroscopic analysis equipment; scientific ins truroonts i analog devices, servo-mechanisms; transistors. Instrumentation for industrial control. Research in physical optics. Ms (200) Me (937) AISc RM3a Battelle Memorial Inst., 505 King Ave., Columbus I, Ohio / Ax 9-3191 / *C Computing service: analog, digital; differential analyzer, card prograDllJed calculato r, \ punch card mac~ines. Many other activities. Ls(25OO) Me (1929) Ic RCPa Beckman Division, Beckman Instruments, Inc., Fullerton, Calif. / Lambert 5-8241 / *C Multi-channel digital data-handling systemsi 200 channel strain gage recorder. Automatic process control, digital dat.a-handling and recording. Ls (1800) , Me (934) DAIc RMSa Beckman Instruments , Inc. -- SEE Beckman Division' AND Berkeley Division Bell Telephone Laboratories, Murray Hill, N. J. / SulllIlit 6-6000 / and 463 West St., New York 14, N. Y. / Chelsea 3-1000 / *C Automatic switching. Bell general purp 0 s e p' I - 15 - computers (relay and electronic, digital and analog) for government use and company's own use. Ls Le DAc RGPa Bendix Aviation Corporation, Bendix Computer Division, 5630 Arbor Vitae St., Los Angele s 45, Calif. / Oregon 8-2120/ ~C Electronic information processing machines •. Small-size low-cost digital differential analyzers and general purp~se digital computeIS; automatic control systems;. Decimal Digital Differential Analyzer Model 0-12; gene ra 1 purpose digital computers Model G-15A and G-15D; analog'to digital conversion e qui pmente Ms (210) Se0952, division; 1929 corporation) DACc RMSPa Bendix Aviation Corp., Pacific Division, Nor t h Hollywood, Calif. / *C Telemetering systems. Digi t'al systems, controIs, and components. Ls(2500) Le(1915, company, 1~37, this division) . Ic RM3a Bendix Aviation Corporation, Eclipse-Pioneer Division, Teterboro, N. J. / Hasbrouck Heights 8 2000 / *C Synchros, low inertia servo motors, p y g m y servo motor generators', etc. Ls (7000) Le (1919) SIc MSa Bendix Aviation Corporation, Research Laboratories Division, 4855 4th Ave., Detroit I, Mic h. / Temple 2-1300 / *C Electronic and electromechanical analog ,computers; numerically controlled machines; data processing equipment; servomechanisms, etc. Ms(400) Me (1942) ASCc Ra Benge Associates, McIntyre Bldg., Spruce and College Sts., Asheville, N. C. / Asheville 2-0852/ *C Management engineers; applications of electronic data processing to office procedures; costs; analysis of clerical routines leading to programming. Ss Me (1939) Cc RCPa Benson-Lehner Corp., 11930 W. Olympic Blvd., Los Angeles 64, Calif. / Br 2-3484, GR 9-3723 / ~C Automatic and semi-automatic devices (b 0 th analog and digital) for computing, data analyzing, data reduction, optical measuring, guided missile anlaysis, etc.i and geophysical seismic reader and profile p lot t e r • Oscillogram trace readers, film rea de rs, plotters, etc. Components: potentiorooters, remote control key boards, etc. Commercial applications of industrial control devices. Ms(170) Se(1950) DAc RCMSa Berkeley Division, Beckman Instruroonts, Inc., 2200 Wright Ave., Richmond, Calif. / Landsr.ape 6-7730 EASE computer (Electronic Analog Simulating Equipment) for solving equations, simulating systems, etc. Network of computing faci lities over the country. Se Ac RMSa Edmund C. Berkeley and Associates, 815 Washington St., Newtonville 60, Mass. / Decatur 2-5453 or 2-3928 Courses by mail in automatic computing machinery and other scientific subj~cts. Ss(3) Se(948) Dc Ca Affiliated with Berkeley Enterprises, Inc. Berkeley Enterprises, Inc., 36 West 11 St., New York 11, N. Y. / Algonquin 4-7675 / and 81 5 Washington St., Newtonville 60, Mass. / Decatur 2-5453 or 2-3928 / *C Small robots, robot show-stoppers, etc. Logical design, applications, marketing, etc. of I ROSTER OF· ORG~NIZATIONS automatic information handling machinery. Bureau"of the Census, Washington 25, D.C. / *C Publisher of "Computers and Automation" and . Tabulation of s tatis tical data by s pe cia 1 other publications. Ss(8) Se(1954) DC RCMS a machines designed and built for own use, by Affiliated with Edmund C. Berkeley &~~ares. commercial punch-card equipment, and by elecBerkshire Laboratories, 732 Bank Village, Green tronic 'computing system (the Univac). Ls (1100) ville, N. H. / Greenville III / * C ' in Machine Tabulation Division) Le0890 in Special computer components ~ Ss Se (194 9) punch card field) DcGa ,lAc RMCa ' " Burlingame Associates, 103 Lafayette St., New York Bill 'Jack Scientific Instrument Co.-SEE under J 13, N.Y. / Digby 9-1240 / *c Birbeck College, University of London, 21 Torring-' Analog computers, servo"analyzers,' servo-conton Sq., London W.C. 1,' .England / Langham 1912/ 'trol devices, digital voltmeters, etc~ Ss(35) *C Me (1928) Ale CSa ' Maker of ARC, APEXC,' and SEC' digi talcomput.en:;; Burroughs Corporation, '6071 Second Ave., Detroi t, electronic digital computers.' Ss (10 to 20 ) Mich. / Triangle 5-2260 / and elsewhere / *C Se (1946) Dc RCPa Automatic electronic digital computers, UDEC, Boeing Airplane Company, Industrial Products DivEIOI. Adding machines, bookkeeping machines, is ion , Seattle 14, Wash. / Mohawk 4444, / *C etc. Electronic digi tal tes tcomputers, asBoeing Electronic Analog Computer. Asso~ sembled from pulse control units. Fast ac~s non-linear equipment. Complete line of auxmagnetic core memory. Pulse control compone~ iliary equipment, including function generaror servo-mechanisms, etc. This company owns Con-' and electronic multiplier. Ls(37,000) LeInstrument Co. Ls(19,000) Le(1896) DSc RMSPa (1916) Ac RMSa Burroughs Corp., Electronic Instruments Div., 1209 Borg~Warner Corporation, Byron Jackson Division, Vine St., Philadelphia, Pa. / Locust 7-1401 Electronics Section, 492 E. Union St., Pasadena Electronic comput'ing equipment: large auto. 1, Calif. / Ryan 1-5166 / *C, matic digi tal computer, UDEC; small aut'omatic Digital pressure, temperature and flow trans~ digital computer, EIOI. ?s ?e Dc MSa ducers and special purpose digital computers. Burroughs Corporation, Research Center, Paoli, Pa. Ms (200) Se (1944, sec tion) Dlc RMa / Paoli 3500- / *C" " , Bowmar Instrument Corp., 2415 Pennsylvania 'Street, Computer 'research'anddevelopnleot.' Computing Fort Wayne 4, Ind. / Anthony 1463 / *C service: digital. Development of data handMechanical computer components. Ms (55) Sc "ling equipment and systems for business, ind, (1951) Ic RMSa' ' , us try, government. Ls (1000) Se (1948) Dc RCPa Bradley 'Laboratories, Inc., 168 Columbus Avenue, Byron Jackson Divisiori':SEE Borg-~arner Corporation New Haven, Conn. / Main 4-3123 /' *C , California Computer Products, 3927 West Jefferson Selenium rectifier kits, high temperature rectBl vd., Los" Angeles 16, Calif" / ' . ifiers'-Selenium diodes, copper oxide diodes, Digital point plotter (CCP 701) and' other \ limiters, modulators. , Ms (125) Me (1939) 'Ic equipment. DAc' RMSa' ' RMSa Cambridge Thermionic' Corporation,' 445 Concord Ave., Richard D. ,Brew and Comp'any', Inc'., 90 Airpo'rt Rd., Cambddge 38, ·Mass. / Trowbridge 6-2800 / *C Concord, N. H. / Capitol 5-6606 / *C, ' C o m p o n e n t s for computers. Ms (150) Me (1940) Distributed constant, lumped constant and Ic RMSCa ul trasonic delay lines. Ss(36) 'Me (1939) Ic Canning, Sisson and Associates, 914 South RobertRMSa ' son Blvd., Los Angeles 35, Calif. / Bradshaw 2Harry P. Bridge Co., 1201 Chestnut St.~ Phila., 7, 4904 Pa. / Locust 80330 / *C, " Consultants in utilization of electronic comMarketing, sales, sales promotion, advertisputers and other automatic data-handling equ~ ing,' merchandising, market research, etc., mente Publisher of "Data Processing Digest". for, all products in the computer field" ConSs Se (1954) DACe RCPa , suI tants; advertising agency. Ss (12)' Me Cannon Electric Company, 3209 Humboldt Street, Los -' 11930) Ic RCPSa ' Angeles 31, Calif. / Capitol 5-1251 / *C, The Bris tol Co., Waterb'ury 20, Conn.' / Plaza 64451 Mul tiple circui t connectors for computers, etc. Automatic recording, indicating, con~r!·C Approximations for digital computers. Ss(2) Se(l954) Dc RCPa Hathaway InstrulOOnt Co. (subsidiary of Hamil ton Watch Co.), 1315 So. Clarkson St., Denve r 10, Colo. / Spruce 7-2696 / *C Transducers, analog and digital recorders, oscillographs, circuit analysis, etc. Ms (80) Me (1939) Ic RCMSa Helipot Corporation, 916 Mer~dian Ave., Sou t h Pasadena, Calif. / PY 1-2164 / *C Precision potentiometers, single-and-mul t i turn, linear and non-linear; turns-counti ng dials. Ls(600) Se(1943) Ic R~5a Hillyer Instrument Co., 54 Lafayette St., Neal York 13, N. Y. / Digby 9-4485 / ~C Simulators, servomechanisms, sensing,computing, and ac tuating sys terns. Automatic machine controls. Ms(lOO) Se(1945) DAICc RMSa Hogan Laboratories, 155 Perry St., New Yo r k 14, N. Y. / Chelsea 2-7855 / *C "Circle" computer. Digital high-speed pr.inters. Facsimile and graphic recording. Ms (60) Me (1929) Dc RMSCa Hughes Research and Development Lab 0 r ato r i e s , Hughes Air~raft Co., Culver City, Calif./ Texas 0-7111 / *C Automatic data-handling systems for commercial and military applications. Industrimcontrol systems. Small, automatic electronic digital and analog computers for airborne use. Firecontrol equipment. Aircraft control. Guided missiles. Ls(15,OOO company; 4,000 Res. and Devt. Labs; 400 c ompu ters) Me (1937) DAc RMSa Imperial College, Mathematics Dept., Computer Section, Huxley Bldg."Exhibition Road, South -Kensington, London, England Automatic digital relay computer constructed and in operation; constructing a second computer with neon tube storage. Ss Le(1922) Dc RMa Industrial Control Co., Wyandanch, L. I., N. Y. / Midland 3-7548 Servo amplifiers, servo multipliers, 'dynamic analyzing tester, etc. Ic RMSa Institut Blaise Pascal, Laboratoire de Calcul Mecanique, 25, Avenue de la Division Le C1 e r c, Chatillon-sous-Bagneux (Seine), France / *C Constructing a digital calculator. Ss(9.) Me (1939) Dc RPa Institute for Advanced Study, Electronia Computer Project, Princeton, N. J. / *C High speed general purpose ~scientific) digital computers for own use. Ss(35) Se(l946) Dc RPa IntelligeBt Machines Research Corp., 110 1 Lee Highway, Arlington, Va. / Jackson 5-6400 / *C Devices for reading characters on paper, etc. Pattern interpretation equipment. S ens i n g mechanisms. Digital computer elements. Ss (28) Se (1951) 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 Processi ng Machines; IBM 704 and 705 (magnetic tap e , magnetic drum, magnetic core storage, etc.) Card Programmed Calculator. Electronic calculating punch IBM 604 and 607. Da tap rocessing equiprent. Automatic Source Record- - 21 - ing Equipment. Computing service: digi ta 1 ; IBM 701, 702, 605, 604, etc. Card programmed calculator, punch card machines; over 115 IBM Service Bureaus all over country plus 4 electronic data processing centers. Ls(42,000) Le(1911) Dc RMSa International Rectifier Corp., 1521 East Grand Av., El Segundo, Calif. / Oregon 8-6281 / *C Manufacturer of germanium diodes, seleni u m diodes, selenium photocells, selenium rectifiers. Ms (390) Se (1947) Ic Rffia International Resistance Co., 401 North Broad St., Philadelphia 8, Pa. / Walnut 2-2166 / *C Fixed and vari able res is tors, rc c t i fie r s , chokes, molded printed electronic circuits. Ls(2200) Me (l924) Ic RMSa International Telemeter Corp., 2000 Stoner Avenue, Los Angeles 25, Calif. / Arizone 8-7751 / *C Systems and devices for clerical and control applications. Automatic document handling machinery. I1igh-capaci ty rapid-access f e rri te core memories. High-densi ty plDtographic information storage. Ferrite storage and switch cores. Community TV system equipment; pay-as-you-see TV. Ms(200) Se(1951) DCc RMSa International Telephone and Telegraph Cor p " 67 Broad St., New York 4, N. Y. / Bowling Green 93800 / >:!'C Digital delay generators for accurate measurement and generation of time intervals, etc. Automatic electronic controls for in- -dustrial applications. Ls (3,500) LeTi 920) Ic RMSa Kearfott Co., Inc., Clifton, N. J. / Gregory 21000 / *C Analog-digi tal converter; digi tal-a n alog converter; servo motors, synchros,resolvers, ROSTER OF ORGANIZATIONS integrating tachometer generators; analog and digital computers. Ls(3000) Le(1916) 1Sc RMSa Ketay Manufacturing Co.--SEE Norden-Ketay Corp. A. Kimball Co., 307 West Broadway, New York 13, N.Y. / Canal 6-2300 / *C Machine for printing and punching garment tags and specific type tickets. Input mechanisms. Ms (200) Le (1876) Ic RMSPa The Kybernetes Corp., Division of Self-Winding ClockdCo., 9 East 40 St., New York 16, N. Y. / Murray Hill 3-6030 '/ *C Automatic logging and digital printout and digital indicator systems. High and low speed electronic scanning systems; mechanfum scanning systems; annunciators. Ms(150) Le (1885, parent company) ICc RMSa Laboratory for Electronics, 75 Pitts St., Boston 14, Mass ~ / Richmond 2-3200 / )!'C Analog and digi tal computers, special computers to suit customer requirements, delay lines (mercury, quartz), plug-in packages for computer applications, etc. Ls(800) Se(1946) DAc RMSa Lanston Monotype Machine Co., Barrett Adding Machine Div., 24th & Locust Sts., Phila. 3, Pa. / Locust 7-4614 / *C Adding, subtracting, and printing desk calculators. Ms (330) Le (1892) Dc Msa Leeds and Northrup, 4901 Stenton Ave., Phila. 44, Pa. / Michigan 4-4900 / *C Automatic recorders and controls. Ls(3150) Le (1899) Cc RMSa Librascope, Inc., 808 Western Ave., Glendale, Calif. / Ch 5-2677 / *C Mechanical and electrical computers, Computing and controlling equipment for in ili ta r y applications and for banks, department s tons , inventory and production control, etc. Airborne digi tal computers. General pur po s e computer under const~uction. All phas~s of data-handling. Ls(1200; approximately 350 on digital computers) Me (1937) DASc RMSa Librascope, Inc.--SEE also Minnesota Electronics Corporation Arthur De Little, Inc., 30 Memorial Drive, Cambridge 42, Mass. / University 4-9370 / *C Analog digi tal converter, "Automatic Digi tal 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 RCa (1886) Ic Litton Industries, 336 N. Foothill Rd., Bever 1 y Hills, Calif. / Cr 4-7411; Br 2-0661 / *C Purchaser of 'Digi tal Control Systems, Inc. Radar systems with monopu1se techniques; countermeasures, inertial navigation, automatic flight control, telemetering devices, communications equipment, instrumentation and test equipment, servomechanisms. New digitm differential Analyzer. Ls(llOO) Se(1953) DAlc RMSa Log Abax S.A., 146, Champs Elys~es, Paris 8, Fram2 / Elysees 61-24 / *C Collaborating wi th Insti tut Blaise Pasc al on computing devices. 198 register automatic accounting machine. Analysis of punched tapes and connection with punch card or calculating machines. Ms (700) Se (1949) Dc RMSa I - 22 - Logistics Research, Inc., 141 So. Pacific Avenue, Redondo Beach, Calif.' / Oregon 8-7108 / *C General purpose digital computers and computing systems (ALWAC). Punched card convertezs, magnetic tape auxiliary storage. Data-reduc~ ion and data-handling systems, input and output equipment; automatic graph-plotters; magnetic heads; automatic curve followers. Ms (112) Se (1952) Dlc RMSa W. S. Macdonald & Co.--SEE Electronics Corporation of America, Business Machines Division Machine Statistics Co., 27 Thames St., New York 6, N.Y. / Cortlandt 7-3165 Computing service: IBM 604, punch card machines, IBM 650 expected. Ss(35) Se(1951) Dc CPa Magnetics, Inc., Box 230, Butler, Pa. / Butler 71745 / *C Tape wound cores of u1 tra-thin high-permeabili ty materials, for computers, etc. Ms (275) Se(1949) Ic RMSa Magnetics Research, Inc., 142 King St., Chappaqua, N.Y. / Chappaqua 1-0052 / *C Magnetic components for analog and dig ita 1 systems and computers; miniature "magnetic shift registers; etc. Ss(15) Se(1952} DAIC RCMSa Marchant Calculators, Inc., Oakland 8, Calif. /*C Automatic electric calculators (desk type) • Marchant-Raytheon Binary-Octal Calculator(desk type). Marchant "Miniac" electronic digi tal computer. Computer components. Data processing equiplOOnt. (See also Marchant Research Ipc.) Ls(2500) Le(1910) Dc RMSa Marchant Research, Inc., 1475 Powell St., Oakland 8, Calif. (subsidiary of Marchant Calculators, Inc.) / Olympic 2-6500 / *C . Electronic digital computers (including Miniac). Magnetic storage systems, qIagnetic heads, data processing equipment including input-output devices; computer components. Ss(55 this division) Se(1950 this division) Dc RMSCa Massachusetts Institute of Technology: Digital Computer Laboratory, 211 Mass. Ave., Cambridge 39, Mass. / Eliot 4-3311 "Whirlwind" electronic digital computer. Ms (300'" Se (19451) DAc RCPa Massachusetts Institute of Technology, Office of Statistical Services, Cambridge 39, Mass. / UnW. 4-6900 / Computing service: digi tal; IBM 604, card programmed calculator, punch card machines. Ss Se Dlc RCPa Mathematisch Centrum. 2e Boerhaavess traat 49, Amsterdam, Netherlands. / *C Relay computer in use; electronic computer under construction. Ms(60) Se(1946) Dc RCPa The W. L. Maxson Corp., 460 West 34 St., New York 1, N.Y. / Longacre 5-1900 / and elsewhere Servomechanisms, analog computers, and digit~ al computers for fire control, navigation, etc. Automatic control machinery. Ls(3000) Me (1935) DASCc RMSa Mellon Institute of Industrial Research, Multiple Fellol'lship on Computer Components, University of Pi ttsburgh, Pittsburgh 13, Pa. / Ma 1-1100 X378 / *C High temperature printed circuit components; electro-optical storage devices. S8 (5) ROSTER OF ORGANIZATIONS Se(1950) Dc RCa Mico InstrulOOnt Company, 80 Trowbridge St., C a mbridge 38, Mass. I Kirkland 7-8660 I *C Toroid transformers, toroid inductors; ferrim core units for computers, etc. Ss(20) Me (1934) Ic MSa Mid-Century Instrumatic Corp., 611 Broadway, New York 12, N.Y. I Spring 7-4016 I *C Analog computers; six-channel recorders; elec-' tronic function generators; electronic ~td ers. Ms(50) Se(1950) Ac RMSa William Miller Instruments, Inc., 325 No. Halstead Ave., Pasadena 8, Calif. Milac analog computer. Electronic instrumems for precision testing and measurement. Ac R~a Minneapolis-Honeywell Regulator Co., Industrial Division, 4580 Wayne Ave.', Philadelphia 44, Pa. I Michigan 4-8300 I *C Automatic controllers. Brown In strumen ts. Servo components used in computers. Recording and indicating instruments and control equipment, etc. Amplifiers, converters, balancing motors, potentiometers, etc. Ls(3200) Le(1859) ACc RMSa Minneapolis-Hone~~ell Regulator Co.--SEE also Da~ matic Corp. and Doelcam Minnesota Electronics Corp., 133 Santa Anita Ave., Burbank, Calif. I *C Digital and analog computers. Magnetic components, magnetic decision elelOOnts. D a t a reduction systems, telemetering. Subsidiary of Librascope Inc. Ss(35) Se(1946) DAlc RMSa Monrobot Corp., Morris Plains, N.J. I Morristown 4-7200 I *C Monrobot automatic electronic digital computers; accounting machines. Subsidiary of Monroe Calculating Machine Co. Ms(lOO) Se(l94~ Dc R~a Monroe Calculating Machine Company, Orange, N.J.I Orange 3-6600 I and elsewhere I *C Desk calculating machinery for adding, calculating, and bookkeeping. See also Monrobot Corp. Ls(4000) Le(19l2) Dc RMSa Moore School of Electrical Engineering, Univ. of Pennsylvania, 200 South 33 St., Phila., 4, Pa. Computing service: analog, digital; differential analyzer, card programmed calculator, punch"card machines. Ms(80) Me (1923) DAc RCPa F. L. Moseley Co., 409 No. Fair Oaks, Pasadena, Calif. I Ryan 1-8998 I *C n~o-coordinate X-Y recorder, point plotter, digital voltmeters, curve follower, etc. Ss (45) Se (1951) Ic MSa Mountain Systems, Inc., 864 Franklin Ave., Thornwood, N.Y. I Pleasantville 2-3330 I *C Electronic data processing systems (Modac); special purpose digital computing systems for business and scientific applications, magnetic drums. Ss (16) Se Dc R~Ca National Bureau of Standards, Applied Mathematics Division, Washington 25, D.C. I Emerson 2-4040 I *C Computing service; Seac, Dyseac, and punch card machines; for government and government contractors only. ,Ms (50) Se (1947) DIe RCPa National Bureau of Standards, Data Processing Systems Division, Washington 25, D.C. I Emerson 2- 23 - 4040 Digital and analog computers, data processing and control systems, input-output devices, storage elements, transistors, diodes, delay lines, e.tc. Designed, assembled, and maintain Seac; des igned and assembled Dy s ea c ; designed several special purpose machines. Ms (80) Se (19·1'3) DAc RMBGa National Bureau of Standards, Institute for Numerical Analysis-SEE University of California at Los Angeles, Department.of Mathematics, Numerical Analysis Research The National Cash Register Co., South Main and K Sts., Dayton 9, Ohio / Adams 6-111 / *C Digital computers, data processing machines, input-output devices, computing systems. CRC 102-A and 102-D general purpose computers rurl other computers. Building new unit at Hawthorne, Calif. which will house electronic research activity; manufacturing will connmue at Dayton. Ls(13,OOO at Dayton) Le(1884) Dc RCrwfia National Co., Inc., 61 Sherman St., Malden, Mass. I Malden 2-7954 Communications receivers; some co mput i n g equipment. Ls (700) ?e Ic RMSa National Union Electric Corp., 350 Scotland Rd., *C Orange, N.J. I Orange 2-6600 I Elec tron tubes, semi-conductor diodes, and transistors for computers, etc. Ms(150) Me (1929) Ic RMa National Physical Laboratory, Control Mechanisms and Electronics Division, Teddington, Middlese~ England. I *C Digital computers, electronic simulators, data recording. Designer and builde~ of the Pilot Model of ACE (Automatic Computing Engine) • Collaborates with English Electric Co. Ls (1000; this division, 40) Le(1900) Dlc RCPMa The Newton Co., 55 Elm St., Manchester, Conn. I Mitchell 3-5104 I *C Data processing equipment. Analog to dig~ converters; simulators; automatic typewrirers. Ms (150) Se (1947) Dlc RMSa , Norden-Ketay Corporation, 99 Park Ave., New York 16, N.Y. I Murray Hill 7-0498 I and elsewherel *C Automatic control systems, computers, fire control systems, bomb sights, navigational systems, digital converters, synchros, servo motors, resolvers, servo amplifiers, resolver amplifiers, airborne instruments. S~~ iaries are Vari-Ohm Corporation, Sunrise Higr way, Amityville, L.I., N.Y.; Nuclear Science and Engineering Corp., Box 10901, Pittsburgh 36, Pa.; Scientific Specialties Corp., Snow and Unio'n Sts., Boston, Mass.; The Frohman Manufacturing Co., Inc., Miami, Florida. Ls (3000) Se(1955) DACSc RMSa North American Aviation, Inc., 12214 Lakewood Blvd~ Downey, Calif. I Logan 5-8651 I *C General purpose computers, differential analyzers. Special purpose analog computers for algebraic and differential equations. Ls (1200 in computer work) Se (1946) ADc RMSa North American Philips Co., Inc., Research & Control Instruments Div., 750 So. Fulton Ave., Mt. Vernon, N.Y. I Mount Vernon 4-4500 I *C Analog computers. Ratemeters. Semi-automatic X-ray machine that determines percent of ROSTER OF ORGANIZATIONS 12 different elements in a specimen, etc. Ms (250) Se (1942) Ale RPtf)a Northrop Aircraft Co., Hawthorne, Calif. I *C Computing center; develops, maintains, operates own computing equipment. Computing service: analog, digital. Digital plotter. Data reduction and analysis. Development of computing systems on order. Ms(70 this project) Se(1950 this project) DAc RCPa Notifier Manufacturing Co., 239 South 11 St., Lincoln 8, Nebraska I Lincoln 5-2946 I *C Automatic control machinery for fire alarms. Automatic control circuits, computer cirelli ts, switching circuits. Memory and pulse storing devices, transistor devices. Two small laboratory type computers under development. Ss (35) Se(1949) CIc RMSCa Nuclear Development Corporation of America, 5 New St., White Plains, N.Y. I White Plains 8-5800 I *C Selection, design, and building of special purpose data-handling systems. Programming. Operate 01'1n "Datatron" providing domputi n g services. Also work wi th machine /b u ilders 00 automatic control machinery and autama~ materials handling machinery. Ms(17~) Se(l94m OCMc RM5Ca I Nuclear Science and Engineering Corp.-Subsidiary of Norden-Ketay Corporation, Which see. NUDErical Analysis Research-SEE Unive~srty of California at Los Angeles Olivetti Corp. of America, 580 Fifth Ave., Ne t'l York,36, N.Y. I Judson 2-0637 I and Ing. C. Olivetti & Co., S.P.A., Ivrea, Italy I *C Desk adding, calculating, and printing machines. Fully automatic printing calculators~ Ls(6000) Le(1908) Dc RMSa Ortho Filter Corp., 196 Albion Ave., Paterson 2, N.J. I Mulberry 4-5858 I *C Pluggable uni ts for computers, cathode ray amplifiers, power supplies, wiring of COmp2E racks, toroids, etc. Ms(75) Se(1946) Ic RMSa John Oster Mfg. Co., Avionic Div., Racine, wisc.1 Fast response magnetic resolvers, etc. Ac RMSa Panellit, Inc., 7401 No. Hamlin A'Te., Skokie, Ill. I Orchard 5-2500 I *C Equipment for automatic control: oooulinated and graphic control panels for process var-. iables; multiple-point scanning systems, annunc i a tor s ys tems • Ms (375) Se ISCMc RCM5Pa Pennsylvania State University, X-Ray and Crystal Structure Lab., Dept. of Physics, University Park, Pa. I Adams 8-8441 X2125 I *C X-RAC computer for crystal electron density functions. S-FAC for structure factor calculations. Ms(55) Se(1946) DAc RPa Phebco, Inc., 3640 Woodland Ave.,' Baltimore 15 , Md. I Mohawk 4-2350 I ·C Analog-to-digital converter; digital computers. Ms(55) Se(1952) Dc RMSa George A. Philbrick Researches, Inc., 230 Cong~ St., Boston 10, Mass. I Liberty 2-5464 I ·C Philbrick electronic analog cQmputing equipment and components. Computing service: an~ log; Philbrick equipDEnt. Ss(5) Se(1946) Ac RCM5a Phillips Control Corp., Joliet, Ill. I Joliet 33431 I *C Relays for computers, etc. Ms(350) Se(1946) - 24 - Ic RMSa Photon, Inc., 58 Charles St., Cambridge 38, Mass. I Trowbridge 6-1177 I *C Machinery for composing type by photographs. First photographically-composed book has ~ published. Ms(IOO) Me (1940) Dlc RCMSa Pi-Square Engineering Co., Inc., 230 Congress St~ Boston 10, Mass. I Hubbard 2-3225 I *C Analysis and solution of engineering prohlems. Computing services. Analog computing equipment available. Ss Se(1954) ASCc RCPa Pitney-Bowes, Inc., Stamford, Conn. I *C Postage meters. Tax-stamping meters. "Tickometer" counting and/or imprinting machines. Ls(3000) Le(1918) Ic MSa Potter and Brumfield Mfg. Co., Inc., Princeton, Indiana I 1596 I *C Electric relays and stepping switches for computers, etc. Ls(850) Me (1931) Ic RMSa Potter InstruDEnt Co., 115 Cutter Mill Rd., Great Neck, N.Y. I Great Neck 2-9532 I *C Electronic counters. Magnetic and perforaUrl paper tape handlers; digital printer. Shift regis ters • Magnetic core memory. Ran do m access DEmory. High-speed printer ("FlyiJJJ Typewri ter") : t»2 lines of characters printed per second. Analog-to-digital converter. Ms(115) Se(1942) Dc RMSa Powers-Samas Accounting Machines, Ltd., England I Punch card tabulating equipment using small, medium, and standard cards. Agency is Underwood Corp., which SEE. Ls(6000) Le(1916) Dlc RMSa Price Waterhouse & Co., Management Advisory Services, 56 Pine &t., New York 5, N.Y. I Whitehall 3-5900 I Applications of systems and equipDEnt to data processing in business, etc. LS Le(1895) Dlc RCPa Productions Electroniques, 8, rue Laugier, Paris 17, France I Collaborating with Institut Blaise Pascal on magnetic recording devices. Ic RMSa Purdue Univ., Statistica 1 Laboratory, West lafayette, Indiana I Lafayette 92-2542 I *C Computing service: digital; Datatron digital computer; punch card machines., Ss(15) Se (1951) Dlc RCPa [J{'l=-f7Ac.. Radio Corporation of America, -R6-A--\Li-G-t-or Division, Camden, N. J. Digi tal computers and data processing systems for business applications. Bi~mac. Ls Le Dc RMSa Radio Corporation of America, Tube Division, .415 South 5th St., Harrison, ,N. J. I Humboldt 5-39001 ·C Tubes, transistors for computers. Ls Le Ic RMSa Radio Development & Research Corp. (Ger man i u m Products, a subsidiary), 26 Cornelison Avenue, Jersey City, N. J. I Rector 2-2337 «New Yo r k Ci ty) I ·C Transistors, diodes, rectifiers,for computers. Ms(IOO) Me (1938) Ic RMSCa Ramo-Wooldridge Corp., Computer Systems Division, 5740 Arbor Vitae, Los Angeles 45, Ca~if. I Oregon 8-0311 I ·C Airborne digital computer systems and da t a Ls(I,Oop) Se(1953) processing systems. Ole RMCa The Rand Corporation, 1700 Main St., Santa Mooica, __ ROSTER OF ORGANIZATIONS Calif. / and'in Lexington, Mass. (digital co mputer programming group) / *C Large digi tal computers for scientific and business uses; analog computers for scientific computations. Ls(l,OOO) Se(1946) DAlc RPGa Raymond Rosen Engineering Products, Inc.,32Walnut St., Philadelphia 4, Pa. / Evergreen 2-5015 /*C Computers used as end item in information transmittal systems, telemetering s ys te ms. Ms(365) Me (1943) Ic RMa Raytheon Manufacturing Co., Waltham, Mass. / Twinbrook 3-5860 (effective 12/5/55) / .C Radar, sonar, communications, fire control, microwave and telemetering equipment, p owe r and receiving tubes, diodes, transistors, . elec tro-hydraulic servo controls, automat i c machine-tool duplicators. Computer w 0 r k transferred to Datamatic Corporation, whic h see. Ls(20,000) Me (1925) DAc RMSa Raytheon Manufacturing Co., Division: Receivingand Cathode Ray Tube Operations, 55 Chapel St., Newton 58, Mass. / Bigelow 4-7500 / .C SeJDiconduc tor diodes, transistors, elec tro n tubes, for computers. Ls Le(1923) Ic RMSa J. B. Rea Co., 1723 Cloverfield Blvd., Santa Monica, Calif. / Exbrook 3-7201 / *C Automatic control systems, general and special purpose digital computers, flight cmtr 0 1 systems for helicopters, automatic c ru is e control for aircraft, torpedo tracking s y stems, automatic data handling systems, aerodynamic systems analysis, simulation, no nlinear servo systems. Magnetic drums, m~netic heads, analog-to-digital converters, etc. Computing service: analog"digital, simulation; Electronic Associates' analog computer, card programmed calculator. Ms (80) S e (1951) DASCc RMSCa Reeves Instrument Co., 215 East 91 St., New Yor k 28, N. Y. / Trafalgar 6~OOO Fire-control equipment. "REAC" electr on i c analog computers. Computing service: analog; Reac. Ls Me Ac RMSa Remington Rand Univac Division of Sperry Ran d Corporation, 315 4th Ave., New York 10, N. Y. / Spring 7-8000 / and elsewhere / *C Digital computers (Univac System, Univac Scientific, Univac File-Computer, Univac120 and Univac 60 Punched-Card Electronic C 0 mputers). Analog computers; special purpose computers. Converters: card to tape, tap e to card, punched paper tape to magnetic tape, and magneti,c tape to punched paper tap e • High speed printers, servomechanisms, magnetic drum storage systems, input and output devices. Punched-card tabulating equipment. Ls(over 6,000; 2,500 on computers) Le Dlc RCPa Remington Rand Univac Division of Sperry Ra n d Corporation, Univac Computing Center, 314 4th Ave., New York 10, N. Y. / Spring 7-8000 Computing service; digital; Univac, punchedcard equipment, etc. Ms Se(1954) Dc RCPa Remington Rand Univac Division of Sperry Ra n d Corporation (formerly Eckert-Mauchly Division), 2300 W. Allegheny Ave., Philadelphia, P a. / Baldwin 3-7300 / *C All purpose digital computers. Univac Factronic System. Ls(600) Se(1946) Dc RCMa Remington Rand Division of Sperry Rand Corp oration, Engineering Research Associates Division, 1902 W. Minnehaha Ave., St. Paul, Minn. / Nestor 9601 / *C Development of digital computers, automati c data-handling and control systems, mechanisms, and weapons. Pulse circuits, magnetic cores, magnetic drums, transistors, printed wiring, miniaturization, and precise mechanisms used in th~ design of these systems. Automa tic digital computers ERA 1101, 1102, 1103; Speed Tally; CAA Flight Plan Storage Systems; the Logistics Computers. Ls(l,050) Se(1946) Dc RMCPa . Remington Rand Division of Sperry Rand Corporation, Engineering Research Associates Division, 510 18th St. South, Arlington, Va • Computing service: digital; ERA 1103 t y p e • Ls (Se(1946) Dc RCPa Rensselaer Polytechnic Institute, Computer Laboratory, 110 8th St., Troy, N. Y. / Ashley 2-3000, X240 / *C Computing service: analog; Reac, precisio n magnetic tape recorders for analog computing applications. Ss(8) Se(1952) Ac RCPa Resistance Products Company, 914 S. 13th St., Harrisburg, Pa. / CE 6-9006 / *C Resistors -- high voltage, high resistance, standard types, encapsulated, hermetic all y sealed, subminiature, etc., for computer and other uses-. ?s?e Ic RMSa Rich Electronic Computer Center -- SEE Georg i a Institute of Technology Richardson Camera Company, Inc., 171 W. Magnolia Blvd., Burbank, Calif. / Thornwall 2-0234 / *C Theodolite cameras, pulse~ata cameras, film readers, film assessors, electronic counters. Ss(18) Me (1934) Ic RMSCa Robotyper Corporation, 125 Allen St., Henders 0 nville, 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 ins truments, time measuring s y stems, time delay generators. Ss(15) Se(1950) Ic RMSa Saunders & Co., 66 Westland Rd., Weston 93, Mass./ *C Digital computing machinery; informatio nhandling devices; related devices. 55 Se Ic Sa Scientific Computing Service, 23 Bedford Square, London WC I, England / Museum 0808 / *C Problem solving, consulting. Computing service: digital. Ss(15) Me (1937) Dlc RCPa Scientific Special ties Corp -- Subsid i a r y 0 f Norden-Ketay Corporation, which see. Servo Corporation of America, 2020 Jericho Turnpike, New Hyde Park, N. Y. / Fieldstone 7-2180/ *C Servomechanisms. Automatic controls. Analysis and synthesis for controls manufacturer s • 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. 1., N. Y., / Edgewood 4-2700 / a 1 s 0 12500 Aviation Blvd, Hawthorne, Calif. / 0 s borne 5-7111 / *C Automatic electronic and electro-mechanical ROSTER OF ORGANIZATIONS control systems and components, analog co mputers, instrumentation. Airborne dig ita 1 computers, digital transducers. Ls(800) Se(l946) AS ICc RMSa 'Shallcross Mfg. Company, Jackson & Pusey Avenues, Collingdale, Pa. / Farragut 9-5100 / *C Wirewound resistors, switches, delay lines, for computer and other uses. Ms(25) Me (1929) Ic RMSa Shepard Laboratories, Summit, N. J. High-speed typer (up to 1800 characters per second). Ss Se(1950) DIc RMSa Soci6te d'Electronique et d'Automatisme, 138 Blvd de Verdun, Courbevoie, Seine, France / Defens e 41-20 / )'''c Analog and digital computers and components. Servomechanisms; electronic equipment for machine tools; electronic recorders. Analog computer OME-L2. General purpose digi tal computer CAB 2.022. Ms(320) Se(1948) DASc RSMa Societe des Servomechanismes Electroniques, 1 rue Chanez, Paris 16e, France Sc RMSa Sola Electric Co., 4633 W. 16th St., Chicago 50, Ill. / Bishop 2-1414 / *C Constant voltage transformers, DC power supplies, etc., for computer and other use s • ~~(250) Me (1930) Ic RMSa \ Sorensen & Co.~ Inc., 375 Fairfield Ave., SUrnUord, *C Conn. / Fireside 8-5311 / Computer power supplies. Ms(300) Me (1943) Ic RMSa Soroban Engineering, Inc., Box 117, Melbourne, Fm. Electronic digital computers of the FLAC and SEAC type; computer auxiliary equipment such as high-speed paper tape perforators (240 characters per second), coded automatic keyboards. Devices for converting e 1 e c t ric typewri ters to control by punched paper tape. Paper tape readers; computer "do-i t-yourself" ki ts; automatic format tabulators and reportwriting machines; computer consulting services; etc. Ss Se(1953) Dc RMSa Southern Electronics Corporation, 239 West Orange Grove Ave., Burbank, Calif. / Victoria 9-3193 / *C Precision polystyrene capacitors. Ss(55) Se(195l) Ic 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(194l) Ic RMSa Sperry Rand Corporation, Sperry Gyroscope Division, Great Neck, N.Y. / Fieldstone 7-3600 / *C Ordnance; fire-control equipment. Automatk controls. Navigation equipment, sea and air Radar, Loran, gyrocompasses, precision instRMSa ruments. Ls(18,000) Le(19l0) Ac Sperry Rand Corporation-also SEE Remington Ranu Divisions Sprague Electric Co., 377 Marshall Street, North Adams, Mass. / Mohawk 3-5311 / *C Capacitors~ miniature, and low di~lectri~ hysteresis loss, for computer applications. Standard capacitors; precision and power type, resistors; pulse transformers; radio interference filters; shift registers; prin- 26 - ted circuits. Ls(6000) Le(1926) Ic RMSa The Standard Register Co., Dayton I, Ohio / Adans 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 DIc RMSa Stanford Computation Center, Stanford University, ,Stanford, California / *C Computing service; one CPC ?s ?e Dc RPCa Stereatronics, 66 Westland Rd., Weston 93, Mass. / *C Solid-state information-handling de vi c_ es.: transistor, magnetic, diode, ferro-etectric, gas tubes, etc. Ss Se DIc RMSa Stromberg-Carlson (West Coast), Charactron & Special Products Laboratories, 3235 Hancock Street, San Diego 10, Calif. / Cypress 8-7701 / *C The Charactron, a computer output device for "debugging", tactical display, etc., converting coded information into tabular or graphic alphanumeric information on a cathode-rqytube screen, Analog-to-digi tal convers i on units. Ms(115) Se(1950) Ic RMSa Swedish Board for Computing Machinery, Drottninggatan 95A, (P. O. Box 6131), Stockholm 6, Swedm / Stockholm 23 55 90 / *C State central institution for research, development, 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 (digital) using BARK and BESK. Ss(30) Se(1949) Dc RMCPa Sylvania Electric Products, Inc., Electronic Systems Division, 100 First St., Wal tham, Mass. / Twinbrook 3-9200 / *C ' Special purpose digital computer equipment, Ls Le (1901) Dc' RMSa Sylvania Electric Products, Inc., Radio and Tebvision Div., 70 Forsyth St., Boston 15, Mass. / Kenmore 6-8900 I *C Electronic digital computers using Rrinted circuit techniques. Subassemblies of diodes and triodes. Computer components. Ls(company 25,000; this division 190) Le(1901); this division 1949) DAt R~Sa Sylvania Electric Products, Inc., Woburn Divisioo, . 100 Sylvan Rd., Woburn, Mass. I Woburn 2-3500 Semiconductor components, crystal diodes, ! transistors, and tubes for computer and other uses. Ls Le Ic RMa Systematics, Inc., 103 Lyndon St., Hermosa Beac~ Calif. / Frontier 2-7811 , Computer components. Ss Se(1955) Dc RMSa Taller and Cooper, 75 Front St., Brooklyn, N.Y. / Ulster 8-0500 / *C Data recording and conversion system, printerst perforators, analog to digital converters. Function generators, computers. Mechanical function generator control of machine tools and allied mechanisms. Toll equipme n t for bridges, highways, turnpikes. Ms(350) Me (1926) Dlc RMSa Tally Register Corp., 5300 14th Ave., N.W., Seattle 7, Wash. / Dexter 5500 / *C Special purpose business machines; electromagnetic pulse counters and pulsed relays; ROSTER OF ORGANIZATIONS high-speed data reduction systems for t elemetering applications; digital-input, m~ltipIe-symbol X-Y plotter with continous ,yrJd printing and numeric abcissa. Ss(25) Se(19ro) DICMc Rr.5Ca Taylor Instrument Co., Rochester, N.Y. Automatic controllers. Ls Le Cc RMSa Techni trol Engineering Co., 2751 North 4 S tree t, Philadelphia 33, Pa. / Garfield 6-9105 / *C Computing and control equipment. Com pIe te digital systems. Components, pulse transfamr ers. Electrical and acoustic delay 1 in e s _. High-speed memories. Digital ,computer "bl.reks".. Ms(105) Se(1947) DAc RMSa Technology Instrument Corporation, 531 Main Str~ *C Acton, Mass. / Colonial 3-7711 / Potentioneters: linear and non-linear; single turn and multiturn; for computer and ,otper uses. Ms(355) Se(1946) Ic Ma Telecomputing Corp., 12838 Saticoy St., No.·Hollywood, Calif. / Po 5-8160 and St 7-8181 / *C Automatic data reading, recording, and plotting equipment. Automatic business data accu~ ulation and analysis equipment; multiple access storage systems.. Computing service; ~ log and digital; card programmed calculators, automatic graph readers, digital p lo_tters, punch card machines.. Ms(250) Se(1947) DC~k RMSPa Telequipment Corp., 80 Broad St., New York 4, N.Y. and Sea Cliff, N.Y. / Whitehall 3-7028 ~Glen Cove 4-2990 / *C Inexpensive equipment ("code stacks It) for attaching to an electric typewriter, adfrng machine, cash register, calculator, etc., sothat it may control a tape perforator and punch paper tape simultaneously with typing. Ss Se Dlc RMSa Teleregister Corporation, 445 Fairfield Avenue, Stamford, Conn. / Fireside 8-4291, and ( New York City wire) Ludlow 5-8900 / *C Digital special purpose computers. Damprocessing systems for special applications: llr ventory control, invoicing, travel reservations, flight data, stock market quotations, etc. Electro-mechanical digital display systerns. Magnetro~ic Reservisor, in use at American Airlines reservations center. ~etronic stock quotation system in use in Toronto StocIc Exchange. Ls (550) Me (1928) Dlc RMSa Teletypesetter Corporation, 2752 Clybourn Avenue, Chicago 14, Ill. / Graceland 7-5250 / and e~ewhere / *C Tape perforators and operating units for local or distant automatic control of Linotypes and Intertypes. Ms(60) Me (1929) Ic RMSa Texas Instruments, Inc., 6000 Lemmon Ave., Dallas 9, Texas / Dixon 1781 / and elsewhere / *C, Germanium and silicon transistors and diodes, precision resistors for computer and oth er uses. Ls(3000) Me (1930) Ic RMSa Tobe Deutschmann Corporation, 921 Providence H~hway, No 1'\VOod, Mass. / N01'\Vood 7,,;,,2620 / *C Capacitors for computers, etc.; electronic. noise suppression products (interference fil~ ters).. Ms(400) Le(1922) Ic RM5CPa Transistor Products, Inc., 241 Crescent St., Waltham 54, Mass. / Waltham 5-9330 / *C Transistors, diodes. Ms(150) Se(1952) Ic RM5a - 27 - Tung-Sol Electric Inc.,. 95 8th Ave., Newark 4, N. J. / Humboldt 2-4200 / *C Electron tubes, transistors, for computer arrl other uses. Ls(6000) Le(1904) Ic RMa Ul tras onic Corp., 640 Memori al Drive, Cambridge, Mass. / University 4-6800 / *C Analog computers, digital techniques, servomechanisms., machine tool controls, etc. Ms (475) Se(1945) DASc R~Sa Underwood' Corp., One Park Ave., New York 16, N.Y. / Lexington 2-7000 / General Research Lab., 56 Arbor St., Hartford 6, Conn.; and elsewhere / *C Accounting machines, adding machines, typetvriters .. Elliott-Fisher and Sundstrand Machines.. Unde~vood Samas punched card accounting machines and systems. Underwood e~tric typewri ters, used in Harvard Mark II calculator. ELECOM electronic computers .. SEE also Electronic Computer Division of Underwood Corporation.' Ls(company 13,000;' laboratory, 100) Le(1894) Dlc 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 simulato~ Ls(4000) Le Ic RMSa U.S. Air Force, Aeronautical Research Laboratory, System Dynamics Branch, Wright Air DeveloplIEnt Center, Wright-Patterson Air Force Base, Ohio / KE 7111, X28235 / *C Has Oarac, CPC, ERA 1103; is acquiring IBM 704, Reeves 055. Ms (62) Se (1948) DAc RCGPa U.S. Air Force, Cambridge Research Center, 230 Albany St., Cambridge 39, Mass. / University 44720 Developed the ABC (Automatic Binary Computerl Has a Computer Research Corp-l02. Ms Me Dlc Ga U.S. Air Force, Computation Research Sec., Wright Air Development Center, Wright-Patterson Air Force Base, Dayton, Ohio . Computing service, analog and digital: Card progrannned calculators, Reacs, punch.card; . for government only. Se DAlc RCPa U.S. Air Force, Inst. of Technology, Wright-Patte~ son Air Force Base, Dayton, Ohio / *C Electronic strategy machine, conceived by L.I. Davis. Philbrick Reac and GEDA equipment on hand. Ms (300) Se (1946) DAlc Ga U.S. Air Force, Rome Air Development Center, Statistical Services Division, Griffiss Air Fo r c e Base, Rome, N.Y. Elecom 120, Bendix Digital Differential Analyzer D 12, Reeves Electronic Analog Computer, Benson-Lehner data reduction equipment, considerable IBM data processing equipment. Gbmputing service: analog, digital; for government only •. Se Dlc RCPa U.S. Ar~, Ballistic Research Laboratories, Aberdeen Proving Ground, Aberdeen, Md. / *C Has Bell, Edvac, Eniac, Ordvac computers and others.. Developing supplementary and modernizing components.. Computing service (digita1) using these machines; for government and government contractors only. Ms Le DAc Ga U.S. Navy, Naval Proving Ground, Computation and ~ Exterior Ballistics Lahoratory, Dahlgren, Va. / X627 / *C Has three digital computers - Harvard Aiken Relay (Mark II), Aiken Dahlgren Elec tr on i c ROSTER OF ORGANIZATIONS' (Mark III), and Naval Ordnance Research Cal~ culator (NORC). Computing service u s i it 9 these machines; for government and govenment contractors only. Ms(145) Se(1942) Dc RCPGa U.S. Navy, Naval Research Laboratory, Washington 25, D.C. / *C NAREC digital computer. Analog computers, servo mechanisms and data reduction. Ls (3200) Le(1923) DASc RCGPa U.S. Navy, Office of Naval Research, Special Devices Center, Port Washington, New York / Port Washington 7-3800 / *C Training devices using analog and digital computers. Ls(5OO) Se(1943) DASMc RMCGBa University of California, Department of Mathematics, Numerical Analysis Research, Los Angeles 24, Calif. / Grani te 3-0971 and Bradshaw 2-61 61 / *C Research and teaching in use of digital computers for scientific computation. Operates SWAC on loan from the Office of Nav& ~ruoch. Also maintain and operate machines, library and other equipment owned up to 1954 by the now inactive National Bureau of Standards Dr stitute for Numerical Analysis. Ss(32) Se (1954-date of transfer from National Bureau of Standards) Dc RPCa Univ. of California, Berkeley, Calif. / *C CALDIC, California Digital Computer. Ss(lO) Se(947) DAc RPa University of Cambridge, University Mathematical Laboratory, Free School Lane, Cambridge, Engl.cnd Built Edsac. Computing service (digital) for University. ?s' Me Dc RCPa University of Illinois, Urbana, Ill. Built electronic digital computer Ordvac for Ballistic Research Laboratory, Aberdeen. Has ·finished computer Illiac on same design, but with faster input-output using a phot.c:>eEctric reader. 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 (1947) Dc RPa University of Michigan, Willm'l Run Laboratories, Willow Run Airport, Ypsilanti, Mich. / Ypsilanti 5110 / *C _ Digital and analog computers, including electronic and electromagnetic computers and simulators; both special and general p u rpos e. 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 computers of all types, e.g. programming, coding, numerical methods, etc. Ls(600) Se (1946)DAc RCPa Uni versi ty of Pittsburgh-SEE Mellon Institute University of Sydney, Dept. of Electrical Engrg., Section of Mathematical Instruments, Sydney, New South Wales, Australia Analog computers. Ac Ra Universi ty of Toronto, Computation Centre, Toronto, Canada / Walnut 3-1327 / *C Digi tal, electronic computers. Now operating: a Ferranti Electric automatic computer; p~h. card machines. Computing service (d~gital) using the Ferranti computer. Ss(15) Se(1947) RCPa University of Wisconsin, Numerical Analysis Laboratory, B-9 Bascom Hall, Madison 6, Wisconsin / Alpine 5-3311, X2137 / *C Computing service: analog, digital; Phi 1brick computer, card programmed calculator, IBM 650, punch card machines. Ss(12) Se DAle RCPa Vari-Ohm Corp.-Subsidiary of Norden-Ketay Corp., which see. Vaucanson, 11 rue de Surmelin, Paris 20e, France Calculating machines. Dc RMSa Vectron, Inc., 400 Main St., Waltham 54, Mass. / Waltham 5-8700 Special computers for accounting applicatirns, military applications, etc. Precision po' tentiometers, precision gear assemblies, etc. Ms(200) Se(1949) DIe RMSa Victor Adding Machine Co., 3900 No. Rockwell St., Chicago 18, Ill. / *C Adding machines, etc. Ls(1600) Le(1918) Dc RMSa VIS Irecord, Inc., 54 Railroad Ave., Copiague,L.I., N.Y. / Amityville 4-4900 / *C Filing systems for all types of common language tapes in computers. Business control on edge-punched cards in conj unction wi t h ' mechanical and electronic business machines. Ms(300) Ic RMSa The Walkirt Co.,· 145 West Hazel St., Inglewood, 3, Calif. / Oregon 8-2873, Oregon 1-0212 / *C Unitized circuit packages, plug-in un its, including binary scalers, linear te rn ary scalers; other digital computing activities. Ss(20) Se(1948) Dc RMSa Wang Laboratories, 37 Hurley St., Cambridge 39, Mass., / Trowbridge 6-1925 Magnetic delay-line memory units. Digital signal generators. Multiple scalers. Static magnetic memory systems and other dev~. Wedilog computers, shaft digitizing coders. Ss(8) Se(1951) Dc RCMSa Waters Manufacturing, Inc., 4 Gordon St., l\hltham, Mass. / Waltham 5-9020 / *C Potentiometers for servomechanisms, computers, and other uses. Ms (80) Se (195l) Ie RMa The George Washington Univ., Logistics,Re~earch Project, 707 22nd St., Washington 7, D. C. / Sterling 3-4539 / *C ONR relay computer with magnetic drum memory. Data-handling machines. ONR electronic digital computer with magnetic drum memory. Computing service (digital) using these mac hines. Ms(50) Se(1950) Dc RCPa Watson Scientific Computing Laboratory, 612 West 116 St., New York, N.Y. / Monument 6-9600/ *C The pure science department of International Business Machines Corp. Simultaneous linear equation solver. Astronomical p,late" measuring machine. IBM punch card machines. Research and instruction. Maker of N a val Ordnance Research Calculator (NORC). Ms(lil] Se (1945) DAc RCPa Wayne University Computation Laboratory, Ca~Ave. Detroi t 1, Mich. / Temple 1-1450 / *C 53OO-word magnetic drum computer buH t 0 f Burroughs pulse control equipment. Digital differential analyz~r and elec'tronic analog equipment. Computing service: analog, digital. Instructi~n and trai~ing~ 5s(30) __ Dc (continued - 28 - on page 35) Components of Automatic List of Computing Machinery- 'fYtpe's (Edition 2, cumulative, information as of November '3, 1955) The purpose of this list is to report t y pes of components of automatic machinery for co~ puting or data processing. We shall be grateful for any cormnents, corrections, and proposed addi tions or deletions, which any reader may send us. 3. Calculating and controlling devices: Mechanical computing elements: latches, gears, levers, ratchets, "progr a m bars", cams, etc. Relay and stepping switch circuits Electronic tube circuits Rectifier circuits, using d i 0 des electronic tube, germanium,selenium, silicon Transistor circuits Auxiliary circuit elements: ampl~ers, pulse transformers, voltage regulators, etc. • Analog computing elements: resolvers, synch~os, integrators, adders, etc. Automatic process controllers as such, pneumatic, electronic, hydraulic,etc. 4. Input devices: Buttons Switches Paper tape readers: mechanical, elec~ trical, photoelectric Punch card readers: mechanical, electrical, photoelectric Magnetic tape readers Automatic curve followers: photoelectric Scanners: electric, photoelectric Sensing instruments of all kinds - The category "sensing instruments" verges into the science of instrumentation, where humidity, tem perature, pressure, volume, flow, liquid ievel, etc., and many other physical variables can be measured and reported to a machine in machine language. 5. Output devices: Visual displays, such as lights ~ dials, oscilloscope screen, etc. Electric typewriter, or other electrically operated office machine Line-at-a-time printer Matrix printer, that forms eacb character by a pattern of dots Automatic plotter, whic~ -will t ra c e or plot a curve accotding to information delivered by the machine Facsimile printer Photographic recording Paper tape punch Magnetic tape recorder Punch card punch LIST 1. 2. Storage mediums, for both internal and external storage: Punch cards Punched paper tape Magnetic tape Magnetic wire Metal plates Plugboards, i.e., panels of patch cords -- All'these physical forms express machine language; when-inserte d into a machine" they give the machine information and instruction; when left in a filing cab i net, they hold information and instructions in reserve for later use. Sometimes it is the whole are a or volume of the storage mediu m' which is used, as in the ordinary punched card. Sometimes i t i s only the edge which is used, as in edge-punched cards or e d g eslotted metal plates. Storage mediums, internal only: Magnetic drums Magnetic tape units Magnetic cores, arranged ei ther 0 n ediroons ionally as in a magnetic shift reg1 ster or in two or three dime ns ions as a magnetic core mat r i x memory; they may be made of special iron alloys, iron oxide c era mic s called ferrites, etc. Electrostatic storage tubes, in particular cathode ray storage tubes Delay lines, of mercury, quartz,nickelf etc. Relays, in relay registers, and stepping switches , Electronic tubes, in reg i s t e r s of flip-flops, counting rings, etc. Swi tches: toggle swi tches and d i a 1 switches Buttons and keyboards Rotation shafts Voltages ( con tin u e d. <> n - 29 - p age 35) ROSTER, AUTOMATIC COMPUTING SERVICES - (Cumulative, information as of November 3, 1955) The purpose of this Roster is to report organi~ations (all that are known to us) offering automatic computing services and having at least one automatic computer, either analogor digital. Each Roster entry contains: nameof the organi~ation, its address / analog or di~ tal computation provided / notes on equipment / any restrictions as to clients. We shall be grateful for any additions or corrections that any reader is able to sendus. Some of the abbreviations are as follows: A analog anal CPC analy~er D diff govtO unres erly Raytheon) / D /- automatic electronic digital computer, etc. / unres Dian La~oratories, Inc., 611 Broadway, New Y~k, N,Y. / A / - / unres Electro-Data Corporation, 717 North Lake Ave., Pasadena 6, Calif. / D / Datatron, 3Q-20l, etc. / unres Electronic Associates, Inc., Princeton Computation Center, Princeton, N. J. / A / Electronic Associates' analog computer / unres Engineering Research Associates. Division of Remington Rand. 555 23rd, St. South. Arling-. ton 2. Va. / D / ERA 1103 I unres Ferranti Limited, Computer Centre. 21 Portland Pl., London W1. England / D / Fe~ranti / unres Financial Publishing Co., Mathematical Tables Div., 82 Brookline Ave., Boston 15, Mass. / D / CPC's, punch card / unres The Franklin Inst. Laboratories for Research and Development, 20 St. and Benj. Franklin Pkwy, Philadelphia 3, Pa. / A / A.C. network analy~er / unres General Electric Co., Schenectady, N.Y. / A / network anal AC and DC. diff anal l unres The George WashingtonUniversity, Logistics Research Project, 707 22nd St/, Washington, D.C. / D / ONR automatic relay computer / unres Georgia Institute of Technology, Rich Data Processing Center. Atlanta. Ga. / D / ERA 1101 computer and other machines / unres Harvard Computation Laboratory, Harvard University, Cambridge 38. Mass. / D / Harvard IBM Mark I. Harvard Mark IV / unres International Business Machines Corp., 590 Madison Ave., New York. N.Y. / D / IBM 701. 702. 650. 604 CPC, punch card. etc. / unres Machine Statistics Co., 27 Thames St., New Yolk 6, N.Y. / D / IBM 604, punch card,/ unres Mass. Inst. of Technology. Office of Statistical Services, Cambridge 39, Mass. / D / IBM 604. CPC, punch card / unres Moore School of Electrical Engineering, Univ. of Pennsylvania, 200 South 33 St •• Phila •• 4,' Pa. / A. D / MSAC, diff anal. CPC, punch card / unres National Bureau of Standards, Applied Mathematics Laboratory, Washington. D.C. / D / Seac, Dyseac. punch card / govtO National Bureau of Standards, Ins ti tute for Numerical Analysis, See Univ. of California , at Los Angeles, Dept. of Mathematics, NumerI IBM card programmed calculator digital differential available to government agencies contractors only unres tric ted ROSTER Alpha Computing, Inc., 436 s. Sepulveda Blvd., Los Angeles 49, Calif. / - / "medium and large computers" / unres Armour Research Foundation of Illinois Inst. of Tech., 10 West 35 St., Chicago 16, Ill. / A, D / Goodyear Electronic Differential Analy~ers, Two Channel Electronic Function Generator, CPC / unres Askania Regulator Co., 240 East Ontario St., Chicago 11, Ill. / A / Philbrick / unres Battelle Memorial Inst., 505 King Ave., Columbus 1, Ohio / A, D / diff anal, CPC, punch card l unres Burroughs Corporation, Electronic Instrument ·Div., 1209 Vine St., Philadelphia, Pa. /D / digital computer UDEC II / unres Burroughs ~orporation Research Center, Paoli, Pa. / D / Burroughs Laboratory Computer / unres Cambridge University, University Mathematical Laboratory, Free School Lane, Cambridge, England / D / Edsac / unres Cornell Computing Center, Rand Hall, Cornell University, Ithaca, N. Y. / D / CPC, punch card / unres Datamatic Corp., Computing Services Section, Needham St., Newton Highlands, Mass. (form-' - 30 - AUTO~fATI C COMPUTING SERVICES ical Analysis Research National Cash Register Company, Electronics owision, (formerly Computer Research Corp.), 3348 West El Segundo Boulevard, Hawthorne, Calif. / D / Cadac 102A, etc. I unres Northrop Aircraft, Inc., Director of Computing, Hawthorne, Calif. I A, D I CPC's, Maddida, Binac, punch card, etc. / unres G A Philbrick Researches, Inc., 230 Congress St., Boston 10, Mass. / A / Philbrick I~ Pi-Squared Engineering Co., Inc., 230 Gbngress St., Boston 10, Mass. I A / Philbrick 7~ Purdue Univ., Dept. of Mathematics, Lafayette, Ind. / D I CPC, punch card I unres Raytheon Mfg. Co., Computing Services Section / See Datamatic Corp., Computing Services Section J B Rea Co., Inc., 1723 Cloverfield Blvd.,Sanm Monica, Calif. I A, D, simulation / Electronic Associates analog computer, Beckman EASE analog computer, CPC / unres Reeves Instrument Co., 215 East 91 St., New York, N.Y. I A I Reac I unres Remington Rand, Inc., 315 4th Ave., New York, N.Y. and 2601 Wil~hire Blvd., Los Angeles, Calif. / D / Univac, punch card, etc. /unres Rensselaer Polytechnic Institute, Computer Laboratory, Troy, N.Y. / A I Reeves Electronic Analog Computer, precision magnetic tape recorders for analog computing applications / unres Rome Air Development Center, Computer FacDdties Section, Griffiss Air Force Base, Rome,N.Y. / A, 0 I Elecom 120, Bendix Digital Differential Analyzer D 12, Reeves Electronic Analog Computer, Benson-Lehner data reduction equipment, etc. / govtO Scientific Computing Service, Ltd., 23 Bedford Sq., London W.C. 1, England I D I - I unres Swedish Board for Computing Machines, Drottni~ atan 95A, Stockholm, Sweden I D / Bark, ~k / unres T~lecomputing Corp., 133 East Santa Anita Ave., Burbank, Calif. / A, D I IBM punch card, coch automatic graph readers, digital plotters I unres _ U S Air Force, Computation Research Section, Wright Air Development Center, Wright Patterson Air Force Base, Dayton, Ohio / A, 0 / CPC's, Reac's, punch card I govtO U S Army, Ballistic Research Laboratories, Aberdeen, Md. / D / Ordvac, Edvac, Eniac, Bell Model V, CPC, punch card / govtO U S Navy, Naval Proving Ground, Dahlgren, Va. I D I Norc, Harvard Mark II, Harvard Mark III, punch card / govtO University mCalifornia, Dept. of Mathematics, Numerical Analysis Research, 405 Hilgardke., Los Angeles 24, Calif. / (formerly National Bureau of Standards Inst. of Numerical Analysis) / D / Swact etc. / unres University of Michigan, Willow Run Research Center, Ypsilanti, Mich. / D / Midac, Midsac, etc. / unres - 31 - Univ. of Toronto, Computation Centre, Toronto, Ontario, Canada I 0 I Ferut (Ferranti Univ. of Toronto computer) I unres Univ. of Wisconsin, 306 North Hall, Madison 6, Wisc. I A: D / Philbrick, CPC, punch card I unres Wayne University, Computation Laboratory, Detroi t 1, 'Mich. / A, D diff anal, Burroughs Unitized Digital Electronic Computer, etc. I unres Westinghouse Electric Corp., Industry Engineer_- ing Dept. East Pittsburgh, Pa. I A, D / An acom network anal AC and ~C, punch card lunres r - END - *---------*---------* DIGITAL COMPUTERS (continued from page 9) It is reported that a machine is be in g constructed at Warsaw; but no Poles ~re present at Darmstadt and details were not secured. Some brief observations on other reports at the Conference may also be in order. In Spain only a differential analyzer is b e in g planned for the immediate future. In all ollier countries represented, and also in Norway, di~ ital computers either exist or are being planned. In Germany, in particular, many machines are under development. Nevertheless, the s e are generally quite modest by American and Bri~ ish standards. The BESK, at Stockholm, rema~ preeminent among existing machines of West European (Continental) constr~ction. Among maChines reported on, special mention should be made of one being constructed at G8ttinge~ using magnetic cores and micro-programming. Of interest in another direction is the mactii ne at Vienna said to have been built at a cost on the order of $100. Between these two extremes is a machine being built commercially by a Bri~ ish firm but said to have been developed b y van der Poel and others of- the Dutch PTT Gbsts, telephones, and telegraphs). The number of European countries represett~ ed at the Conference and the number of people in attendance, both suggest that rapid develo~ ments are certain to take place in the ne a r future. - END - AUTOMATIC COMPUTING MACHINERy ..... LIST (Edition 2, cumulative, informatio~ as of November The purpose of this list is to report types of machinery that may well be considered automatic comppting machinery, that is, automatic machinery for handling information or data, reason ably. We shall be grateful for any comments, corrections, and proposed additions or del e t ion -s which any reader may be able to send us. Accounting-bookkeeping machines, which take in numbers through a keyboard, and print the m on a ledger sheet, but are controlled by ''program bars", which, according to the colu m n in which the number belongs, cause the number to enter positively or negatively in anyone of several totaling counters, which can be optionally printed or cleared. Addressing machines, programmable, which take in names and addresses, either on metal plates or punch cards, and print the names and a ddresses on envelopes, wrappers, etc., and which may be controlled for selection and in other ways, by notches, punched hole s, and other signals, on the plates or cards. Air traffic control equipment (including ground control app~oach equipment), which takes in information about the location of aircraf t in flight and gives out information or co ntrol signals'for the guidance of the flight of the aircraft. . Analog computers, which take in numerical information in the form of measure men t s of physical variables, perform arithmetica 1 operations r are controlled by a program, and give out numerical answers. Analog-to-digi tal converters, which t a k e i n analog measurements and give out, dig ita 1 numbers. Astronomical telescope aiming equipment, which adj us ts the direc tion of a telescope ina n' observatory so that it remains pointed at the spot in 'the heavens which an astronomer intends to study. Automobile traffic light controllers, that take in indications of the presence of motor cars from the operation of treadles in the pavement or in other ways, and give out signals, according to a program of response t o t h e volume and density of traffic. Card-to-tape converters, which will ta k e in informatibn on punched cards, and put out corresponding' or edited information on punched paper tape or on magnetic tape. Control systems for handling connected or flowing materials, ,which will take in indications of flow, temperature, pressure, vol u me, liquid level, etc., and give 'out the settings of valves, rollers, tension arms, etc., depending on the program of control. - 32 - OF TYPES , '3, 1955) Control systems for handling separate materials, which will roove heavy blocks, long rod s, or other pieces of material to or from stations and in or out of machines, while takin gin indications furnished by the 10 cat ion s of previous pieces of materials, the availabil i ty of the machines, etc., all depending 0 n the program of control. Data sampling systems, which will take i n a continuous vol-tage or other physical variables and give out samples, perhaps once a second or perhaps a thousand times a second; t his machine may be combined with an analog-t 0digital converter, so that the report on, the sample is digital not analog. Digi tal computers, which take in n u mer i cal, alphabetic, or 'other information in the for m of characters or patterns of yes-noes, etc., perform arithmetical and logical operations, are controlled by a program, and put out information in any form. Digi tal-to-analog converters, which t a k e i n digital numbers and give out analog measurements. Facsimile copying equi'pment, which s can s a document or picture with a phototube line by line and reproduces it by making little dots with a moving stylus or with an elec t r i c current through electrosensitive paper. File-searchIng machines, which will take inan abstract in code, and search for and find the reference or references alluded to. Fire control equipment, that takes in indications of targets from optical or radar per. ception and puts out directions of beari n g and elevation for aiming and time of firing for guns, accordinp to a program that c a 1culates rIlQtion of target, motion of the firing vehicle j .properties of, the a~r, etc. Flight simulators, which 'will take in simulated condi tions of flight in airplanes, and th e actions of airplane crew members, and sho loY the necessary results, all for pur pos e s of t'raining airplane crews. ' Game-playing machines, in which the mach i n e will playa game with a human being, either a simple game such as ti t-tat-toe or Dim (which have been built into special machines) or a more complicated game such as checkers, chess, or billiards (which have been progranuned on large automatic digital computers). Inventory machines, which will store as man y as ten thousand totals i.n an equal numb e r of registers, and will add into, subt rae t from, clear, and report the contents of any called-for register (these machines app 1 y to stock control, to railroad and air lin e reservations, etc.). {continued on page 34Y Typical current Amplification characteristics 25 Checked against similar types Sylvania's Power Transistor consistently provides higher current gains. ~I~ z 201---.-t= « o o iL J 15 J----4--......; n. ~ « IZ UJ 0:: 0:: 10J----4----+-~ ::> o 5~----~-------+------~------~ o .2 .4 .6 .8 1.2 1.4 1.5 1.0 Emitter Current, lamps) Ie Shown more than twice the actual size Sylvania NPN Power Transistor 2N9S Exhibits compare Check the Sylvania 2N95 against similar Transistor types yourselffor current gain as well as all of these important power Transistor features. Operated at 1.0 amp emitter-curbines all the important features you . rent, the Sylvania 2N95 Transistor want in a power transistor, whatever typically provides a current gain of your applica.tion. If, for example, 17 ... 3 ~ times that of comparable yours is a switching application, the types A and B. Even at 1.5 amp 2N95 offers high gain at high currents. emitter current the 2N95 typically Designed for low thermal resistexhibits a high gain of 13 ... in fact, ance, the Sylvania 2N95 Transistor as the curve shows, the Sylvania - provides dissipation up to 2 Y2 watts 2N95 provides the highest gain over without an external heat sink and up the widest range of operating current to 4 or more watts with a suitable ' conditions. heat sink. This insures stable operaIn addition, Sylvania's 2N95 comtion in high ambient temperatures. "another reason why it pays to specify Sy/vania" JI" Does the Sylvania 2N9S offer- 1. 2. 3. 4. 5. 6. lower cost low input impedance low thermal resistance high current switching high current gain mounting for air cool or heat sink 7. hermetic seal answer yes yes yes yes yes ..; ..; ..; ..; ..; yes yes ..; ..; A smaller version for heat sink mounting, the Sylvania 2N102 is also available with the above features. -----_ ..... _---• Check your application for complete data on other Sylvania Transistors High gain, low frequency 0 High power, low frequency Types 2N34 and 2N35 Types 2N95 and 2N68 Io TJt l\r..TT I0 J-\.l ~ 1ft I :¥~!:i:.n:7:::~adway. New York 19. N.Y. .1I ,,® SYLV High frequency Types 2N101 and 2N102 SYLVANIA ELECTRIC PRODUCTS INC. 1740 Broadway, New York 19, N.Y. /r, Canada: Sylvania Electric (Canada) Ltd. University Tower Building, Montreal LIGHTING • RADIO • Company Addre~i _________________________________________ ELECTRONIC~33 ~ELEVISION • ATOMIC ENERGY AUfOMATIC COMPUT'ING MACHINERY ~~continued from Machine tool control equipment, which takes in a program of instructions equivalent t 0 a "blueprint, or a small s h:e model, or the pattern of operations of an expert machin is t , and controls a machine tool so that a,p iec e of material is shaped exactly in accordanc e wi th the program. Navigating and piloting systems, which w i l l take in star positions, time, radio b e a m signals, motion of the air, etc., and deliver steering directions. Network analyzers, which take in analog iniormation about the resistances, inductances, and capacitances of an electric powerplant's network of electrical lines and loads, and enable the behavior of the system to be calculated, and the system to be appropriately designed and rendered safe and economical. Printing devices of high speed, which will take in punched cards or D.lagnetic. tape and put out printed information at rates from 600w 2000 characters per second. Punch card machines, which will sort, classify, list, total, copy, print, and do many other kinds of office work. Railway signaling equipment, which for example enables a large' railroad terminal to schedule trains in and out every 20 seconds' d uri n g rush hours with no accidents and al mo s t no delays. Reading and recognizing machines, which scan a printed digit or letter, observe a patter n of spots, route the pattern through classifying circuits, recognize the digit or letter, and activate output devices accordingly. Sale recorders, also called point-of-sale r ecorders, which take in the amount, the type, and other information about sales of goods, and produce records in machine language,Whlch can later be automatically analyzed and summarized by control punch card or co mput i n g equipment. Spectroscopic analyzers, which will vaporize a small sample of material, analyze its spectrum, and report the preserice and tpe relative quanti ties of chemical elements and compo'unds in it. . Strategy machines, which enable military officers in training to play war games and t 'es t strategies, in which electronic de vic e s automatically apply attrition rates t 0 the fighting forces being used in the game, growth rates to the industrial potential of the two sides, etc. Tape-to-card converters, which will t a k e in information on punched paper tape or on magnetic tape, and put out correspondin g or edi ted information on punched cards-. Telemetering transmitting and receiving devices, . which enable a weather balloon or a gui ded missile to transmit information detec te d by instruments wi thin it as it moves; the information is recorded usually on magnetic tape in such fashio'n that it can later be used for computing purposes. -34- page 32) Telephone equipment i'ncluding switching, which enables a subscriber to dial another s ubscriber and get connected automatically. Telephone message accounting systems, w hi c h record local and long dis tance tel e phone call$, assign them to the proper subscriber's account, and compute and print the telephone bills. Test-scoring machines, which will take ina test paper· completed with a pencil.making electrically conductive marks, and will give out the score. Toll recording equipment, which will record, check, and surmnarize tolls for b rid g e s , highways and turnpikes. Training simulators, which will take in simulated conditions affecting .the training 0 f one or more persons in a job, and 'their responses under these simulated conditions,and show the results, all for the pur p os e 0 f teaching them; SEE also flight simulators. Typing machines, progrtlrmnable, which will store paragraphs and other information,andcombi~e them according to instructions into correspondence, form letters, orders, etc., stopping and waiting for manual "fill-ins" if so instructed. Vending machines, which will take in vari 0 us coins and designations of choices, and then give out appropriate change, coffee, s of.t drinks, sandwiches, candy, stockings, and a host of other articles, or else allow somebody to playa game for a certain number of plays, etc.- END - *,---------. ----------* SPECIAL ISSUES' OF ~~COMPUTERS AND AUTOMATION" TIle issue of "Computers and Automation" in June, 1955, was a special issue: "The Computer Directory, 1955", 164 pages, containing: Part I, Who's Who in the Computer Field; Part 2, Roster of Organizations in the Computer Field; and Part 3, llIe Computer Field: Products and Services for Sale. It is eXpected that the next Computer Directory issue will be June, 1956. The next special issue will be Janu ary, 1956. It will be mainly devoted to use f .u 1 information for people who have newly entered the computer field: an introduction to computers (and to "Computers and Automation") , and reprints and revisions of some of the more introductory articles and papers that "ComIllters and Automation" has published. ROSTER OF ORGANIZA~IONS from page 28) (continued Se (1950) DAc Ra Jervis B. Webb Co., 8951 Alpine Ave., Detroit 4. Mich. / Webster 3-8010 / ~C , Conveyor engineering and manufacturing. ServOlOOchanisms, automatic control machin e ry, automatic materials handling machinery. Ls (600) Le(1919) SCMc RMSa Weems Sustem of Navigation, 227 Prince George St., Annapolis, Md. Automatic navigation syste~. Me Ic RCPM Sa Westinghouse Electric Corp., Analytical Depa r tment, East Pittsburgh, Pa.~¥xpress 1-28)0/ ~C Electronic and passive element analog c~t ers; analog-to-digital conversion equipment; automatic control devices. DC and AC calculating boards (network analyzers); A NA CO M computer. Installing IBM Type 704 EDPM. ~ namic analyses of physical systems, ~luding transient phenomena in mechanical and electrical systems; servomechanisms, and regulating systems; nuclear reactor calculations; field mapping; operations research. Computing service; digital and analog. Ls(corporation, 10OpOO; dept., 50) Se(dept., 1952) DASc RMSCPa Wharf Engineering Labs., Fenny Compton, Warwickshire, England / Fenny Compton 30 / *C Magnetic drums, recording heads, transformers. Ss (15) Se (1949) Ic RMSa Wiancko Engineering Co., 255 No. Halstead Avenue, Pasadena, Calif. Digital ballistics analyzer computer, computer components, etc. ?s ?e DAIc RMSa Zator Co., 79 Milk St., Boston 9, Mass. / Lllerty 2-4624 / ~C Digital equipment and systems for codi?g,fUing, and finding information JZato coiling ~ tems). High-speed selectors for n 0 ~c he d cards. Methods for use of digital computing machines to recover information. Ss SeG947) Ic RCSa Zeuthen & Aagaard Ltd., 6 Esplanaden, Copenhagen, *C Denmark / Central 3795 / Portable adding machine (Contex); dictating machine (Rex-Recorder) with magnetic recording on plastic disc using impregnated particles and permitting more than 10,000 reus~ duplicating machines, etc. Ls Le Ic RMSa Konrad Zuse, Kreis HUnfeld No. 69, Neukirche n, Germany Electronic digital computers. Has madeZuse Model IV and V computers. Ss(9O) Se(l949) Dc RM5a 2 ENGINEERS ME or EE DIGITAL COMPUTER DEVELOPMENT Excellent opportunity to join an expanding, stable company, with an outstan'ding position in the precision electronic' control industry. Opening now available for an engineer able to assume responsibility for the development of complete systems for fire control and guidance, or major portions of such systems. Work will include research and development in the field of complex analog or digital computers. A degree in' electrical or mechanical engineering is required or the equivalent in experience. MISSILE & WEAPONS CONTROL SYSTEMS STUDIES *--------------------*--------------------* Enjoy full use of your skill and imagination and friendly professional give-and-take with top men in the field of electro-mechanical precision equipment. You will perform studies related to airborne weapons control and guidance systems with the object of determining requirements, feasibility, performance and specifications of computers and overall systems. A degree in 'physics, ME or EE - or the equivalent in experience - , is required. Must be able to handle problems in such diversified fields as digital computers, digital data transmission systems, logic counting and conversion circuits, high-precision gyro and gimbal structures, dynamic behavior of missiles, align- . ment of inertial platforms for guidance systems and fight evaluation of guidance systems and instrumentation. Send resume in confidence to COMPONENTS Technical Personnel Dept. 2.500 - END . ( con tin u e d fro '!1 p age ,29) Microphones, telephones, loud speakers, alarms, etc. Article delivery IOOchanisms as in vending machines Pos i tioning devices, that may opera t e a valve, roller, tension arm, etc., resulting in control ofa manufacturing operation or process, the aiming of a gun, etc. - ARMA Division American Bosch Arma Corp. Roosevelt Field, Garden City Long Island, N. Y. EN D - - 35 - INDEX This index covers information published in the twelve issues of COMPUTERS AND AUTOMATION, vol. 3, no. 10, Dec. 1954, to vol. 4, no. 11, Nov. 1955. In order not to delay the current issue, Dec. 1955, it has not been included in the index. The last part of each entry in the index gives: volume / number (month of issue), page number. A: ABSTRACTS: Association for Computing Machmery Meeting, Ann Arbor, Mich., June 1954, 4/4 (April) , 1 5 ' . Association for Computing Machinery Me e tin g , Philadelphia, Sept. 1955, 4/11 (Nov.), 17 Eastern Joint Computer Conference, Boston, Nov. 1955,4/11 (Nov.), 12 Eastern Joint Computer Conference, Philadelphia, Dec. 1954, 4/1 (Jan.), 15 Western Computer Conference, Los Angeles, March 1955, 4/4 (April), 38 Administrative devisions, computers to make, 4/3 (March), 28 "The Advance of Automation" by F. Palmer Web e r 4/11 (Nov.), 31 Analog computer, for solving simul taneous equations, 4/3 (March), 12 "Analog Computers and Their Application to He a t Transfer and Fluid Flow - Part 2", by J 0 h n E. Nolan, 3/10 (Dec. 1954),24 "Analog Computers and Their Application to He a t Transfer and Fluid Flow - Part 3", B i bliography, by John E. Nolan, 4/1 (Jan.), 31 Analog computers, input functions, 4/1 (Jan.), 27 "Animal and Machine Brains" (in The Editor's Notes) 4/10 (Oct.), 4 Answering of inquiries, automatic, 4/11 (Nov.) 6 "The Application of Automatic Comp,uting Equipment to Savings Bank Operations" by R. Hunt Brown, 4/7 (July), 18 Application of digital computers to business operations, problems in, 4/3 (March), 16 "Approaching Automation in a Casualty Insura n c e Company" by Carol O. Orkild, 4/2 (Feb.), 19 Arents, Chester A., "Computer Sess ion at the Conference on Industrial Hydraulics, Octob e r, 1955" (in Fo~um), 4/9 (Sept.), 30 Asimov, Isaac, "Franchise", 4/9 (Sept.), 17 Asimov, Isaac, "Question", 4/3 (March), 6 "Association for Computing Machinery Meeting, Ann Arbor, Mich., June 1954 -- Ti tIes of P a pe r s and Abs trac ts", 4/4 (April), 15 Association for Computing Machinery Meeting, Philadelphia, Sept. 1955, notice, 4/3 (March),30 Association for Computing Machinery Meeting, Philadelphia, Sept. 1955, notice, 4/7 (July), 9 "Association for Computing Machinery Me e tin g , Philadelph'ia, September 1955 -- Titles 0 f Papers and Abstracts", 4/11 (Nov.), 17 Astrono~, use of computers in, 4/11 (Nov.), 10 Atkinson, Cyril P., "A Mechanical Analog Computer for Solving Linear Simultaneous Algebr a i c Equations", 4/3 (March), 12 "Automatic Answering of Inquiries" by L.E. Griffith, 4/11 (Nov.), 6 "Automatic Coding for Digital Computers" by Dr. G. M. Hopper, 479 (Sept.), 21 "Automatic Computers -- Estimated Commercial Population", 4/3 (March), 30 Automatic computers, for business, publications on, 4/9 (Sept.), 13 Automatic computers in savings banks, 4/7 (July), 18- 36 - Automatic computers, justifying the use of, 4 /8 (Aug.), 17 Automatic Computers, Roster of, (cumulative), 4/2 (Feb.), 23 , Automatic Computing Services, Roster, (t;umulative), 4/1 (Jan.), 20; 4/6 (Jun~), 123 "Automatic Data Processing Forum, New York" by W. K. Tarrant, 4/10 (Oct.), 38 "Automatic Literature Searching", by U. S. Dept. of Commerce, 4/1 (Jan.), 26 "Automatic Programmed Component Assembly Sys te m" by Neil Macdonald, 4/2 (Feb.), 34 "Automatic Programming" (in The Editor's Notes) , 4/9 (Sept.), 4 "Automatic Programming: The A-2 Compiler System-Part 1" by Programming Research Section, Remington Rand, 4/9 (Sept.), 25 ' "Automatic Programming: The A-2 Compiler SystemPart 2" by Programming Research Section, Remington Rand, 4/10 (Oct.), 15 "Automatic Programming of Production Machi n ery " by Harmon G. Shively, 4/7 (July), 29 Automation, advance of, 4/11 (Nov.), 31 Automation, economic changes from, 4/5 (May), 4 Automation, human relations in, 3/10 (Dec. 1954), . 6 Automation in an insurance company, 4/2 (FebJ,19 "The Automation of Bank Check Processing" by R. Hunt Brown, 4/8 (August), 6 "Automation Puts Industry on Eve of Fantas t i c Robot Era - Its Effect on Workers Spurs Unions' Drive for Annual Wage" by A. H. Raskin, 4/5 (May), 27 "Automation - A Report to the UAW-CIO Economi c and Collective Bargaining Conference", by UAW-CIO, 4/5 (May), 14 B: Bank checks, automatic processing of, 4/8 (August), 6, Banks, use of automatic computing equipment in, 4/7 (July), 18 Bibliography, for analog computers, 4/1 (Jan.),31 '!A Big Inventory Problem and the IBM 702" by Neil Macdonald, 4/9 (Sept.), 6 "Binary Arithmetic" by J. B. McCall, 4/1 (Jan.) ,11 Binary arithmetic, in testing compute r s, 4/8 (August), 33 "The Book Reviewer" by Rose J. Orente, 4/7 (July), 22 "Books and Other Publications", 4/1 (Jan.), 40; 4/2 (Feb.), 28; 4/3 (March), 25; 4/4 (ApriD, 42; 4/5 (May), 33; 4/7 (July>, 26; 4/8 (AugJ, 28; 4/9 (Sept.), 36 Booth, Andrew D., "Recognhdng Spoken Sounds ,by Means of a Computer", 4/2 (Feb.), 9 Booth, Andrew D., "Some Curiosities of Binary Arithmetic Useful in Testing Binary Computers", 4/8, (August), 33 "The Brain and Learned Behavior" by Dr. Harry F. Harlow, 4/10 (Oct.), 6 Brains, animal and machine, 4/10 (Oct.), 4 Breen, John M., ,"Problems Involved in the Application of Electronic Digital Computers t 0 Business Operations", 4/3 (March), 16 , (continu~d on page 38) M A NUS c R I P T S We are interested in articles, papers, reference information, science fiction, 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. cations. An artic Ie may certainly be con t roversial if the subject is discussed reasonabl~ Ordinarily, the length should be 1000 to 4000 words. A suggestion for an article should be submitted to us before too much work is done. Articles. We desire to publish articles t hat are factual, useful, understandable, 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' knOt;Jledge of some part of the field, but who are laymen in other parts of it. Consequently a wri ter should seek to e xp 1 a i n his subject, and show its context and significance. He should define unfamiliar terms, or use them in' a way that makes their meaning unmis takable. lIe should identify un fa mil i a r persons tvi th a few words. He should use examples, details, comparisons, analogies, etc., whenever they may help readers to understand a difficul t point. He should give data s u pportil1g his argument and evidence for his assertions. We look particularly for articles that explore ideas in the field of computers and au.tomation, and their applications and i mpli- Technical Papers. Many of the foregoing r equirements for articles do not n e c e s sa r i 1 y apply to technical papers. Undefined techni-cal terms, unfamiliar assumptions, mathematics, circuit diagrams, etc., may be entirely appropriate. Topics interesting probably to only a few people are acceptable. Reference Information. We desire to print or reprint reference information: lists, rosters, abstracts, bibliographies, etc., of use, to computer people. We are interested in ma king arrangements for systematic publication from time to time of such information, wi th othe r people besides our own-staff., Anyone who would like to take the responsibility for a type of reference information' should write us. Fiction. We desire to print or reprint ficticn which explores scientific ideas and possibilities 9bout computing machinery, robots, cyber(continued on page 43) *------------------------------------------- -------------------------------------------* - 37 - INDEX {continued from Breen, John M., ''Who Are Manning the New Compu ters?", 4/10 (Oct.), 26 Brown, R. Hunt, "The Application of Auto mat i c Computing Equipment to Savings Bank Operations", 4/1;. (July), 16 Brown, R. Hunt, "The Automation of Bank Check Processing", 4/6 (August), 6 Business operations, use of digital computers in, 4/a (March), 16 Business, publications on computers for, 4/9 (SeptJ, 13 C: Cancer cells, electronic detection of, 4/3 (March), 34 "The Capacity of Computers to 'Think' It, by Russell Chauvenet, 4/1 (Jan.), 21 Carr, John W., III, "Problems for Students of Computers", 4/2 (Feb.), 6 Carr, John W., "Uni vers i ty of Michigan Sum mer Session Notes on Computers and Data Processors", 4/11 (Nov.), 9 Chambers, Francis T., "Computer 'Thinking'lt, 4/3 (March),9 Chapin, Ned, "Justifying the Use of an Automatic Computer", 4/6 (August), 17 Chapin, Ned, "Publications for Business on Au t 0matic Computers: A Basic Listing", 4/9 (Sept.), 13 "Charting on Automatic Data Processing Systems" by Barry Eisenpress, James L. McPherson, and Julius Shiskin, 4/8 (August), 21 Chauvenet, Russell. ''The Capacity of Computers to 'Think"~ 4/1 (Jan.), 21 CIO:UAW report on automation, 4/5 (May), 14 Circuit design of incomplete selection circuits, 3/10 (Dec" 1954), 36 Coding, automatic, 4/9 (Sept.), 21 "Collection of Material on Exploitation of Aut 0matic Digital Computers" by George E. Forsythe, 4/7 (July), 31 Component assembly system. automatic, 4/2 (Feb.),34 "Components of Automatic Computing Machinery -Ust of Types" (cumulative), 4/3 (March), 22 The Computer Directory, 1955, 4/6 (June), whole issue "The Computer Field: Products and Serv ice s for Sale", (cumulative), 4/6 (June), 116 Computer programs, 4/2 (Feb.), 27 "Computer Session at the Conference on Industrial Hydraulics, October, 1955", by Chester A. Arents, 4/9 (Sept.), .30 "Computer 'Thinking''', by Francis T. Chambers, 4/3 (March), 9 "Computers and Computation, Abroad and Here", by Alston S. Householder, 4/2 (Feb.), 32 Computers and data processors, Univ. of Michigan Summer Session, notes on, 4/11 (Nov.), 9 "Computers and Weather Prediction" by Bruce Gi 1christ, 4/3 (March), 8 Computers in Society (in The Editor', Notes), 4/7 (July), 4 Computers, problems for students of, 4/2 (Feb.), 6 "Computers to Make Administrative Decisions?" by Hans Schroeder, 4/3 (March), 28 Computing services, Roster, 4/1 (Jan.), 20 Conference -- see also: Association for Computing Machinery Meetings Easter. Joint Computer Conference Electronic Computer Conference, Darmstadt, Germany Industrial Electronics Conference, Detroit National Simulation Conference o 0 0 0 page 36) National Telemetering Conference Proposed Symposium on Numerical Analysis Univ. of Wisconsin Conference Western Computer Conference Conference on High-Speed Computers, Louisiana State University, Baton Rouge, La., Feb. 15-17,1956, 4/11 (Nov.), 4 Conference on Industrial Hydraulics, 4/9 (Sept.), 30 "Conference on Instrumentation for Data Handl ing, Atlanta, November, 1955", by D. L. Finn (j n Forum>, 4/9 (Sept.), 30 "Conference on 'The Practical Utilization of Knowledge', Cleveland, January 1956" by Dean Jesse H. Shera, (in Forum>, 4/9 (Sept.), 30 "Cooperative Graduate SUDlDer Session in Statistics", by H. A. Meyer, 4/3 (March)~ 32 CORRECTIONS: of "The Automation of Bank Check Processing" -- SEE 4/9 (Sept.), 4 . ''Binary Addition Table" -- SEE 4/3 (March), 32 "Charting on Automatic Data P~ocessing Systems" -- SEE 4/10 (Oct.), 35; 4/11 (Nov.) 39 "Justifying the Use of an Automatic Com pute r" -- SEE 4/10 (Oct.), 35 . "Linear PrograDDlling and Computers" by Chandl er Davis -- SEE 4/9 (Sept.), 4 May issue masthead -- SEE 4/7 (July), 32 Cow, The Tale of a, by M. E. Salveson,4I6 (AugusV, 20 0: Danch, 'Bill, "Quadrupled Production", 3/10 (Dec. 1954),4; "A Boon to Government", 4/1 (Jan.), 44; "Decimal Places", 4/1 (Jan.), 38; "Astronomical Numbers", 4/2 (Feb.), 40; "He Mad e His Mark", 4/3 (March), 36; "To Program 0 r Not to Program", 4/4 (April), 50; "Cost Alloca,tion", 4/5 (May), 44; "Computer Repair", 4/6 (June), 154; "L!ke Rabbi ts", 4/7 (July) , 36; "Square Root to Eight Decimals", 4/9 (SeptJ, 40; "Computer Applications", 4/10 (Oct.), 40; "Supervision of Human Operators", 4/11 (Nov.), 36 Data processors: ''Reliability in Electronic Dat a Processors", 4/5 (May), 6 \ Davis, Chandler, "Linear Programing and Computers: Part 1",4/7 (July), 10 Davis, Chandler, "Linear Progranming and Computers: Part 2", 4/6 (August), 10 "Debugging Computer Programs" by D. D. McCracken, 4/2 (Feb.), 27 Dickson, Gordon R., "The Monkey Wrench", 4/6 (May), 21 Differential analyzer, digital, 4/1 (Jan.), 8 Digital computer, coding for, 4/9 (Sept.), 21 "The Digital Differential Analyzer" by George F. Forbes, 4/1 (Jan.), 6 Directory: The Computer Directory, 1955,4/6 {J~ whole issue Dumey, Arnold I., "Economies in Design of Incomplete Selection Circuits with Diode Elements", 3/10 (Dec. 1954),36 E: Eastern Joint Computer Conference, B 0 s ton, November, 1955, notice, 4/9 (Sept.), 30 Eastern Joint Computer Conference, Boston, Nov., 1955 -- Titles of Papers and Abstracts, 4/11 (Nov.), 12 "Eastern Joint Computer Conference, Philadelphia, Dec. 1954" by Milton Stoller, 4/1 (Jan.), 14 "Eastern Joint Computer Conference, Philadelphia, Dec. 1954" -- Titles of Papers and Abstracts, 4/1 (Jan.), 15 Eckert, W. J., "The Significance of the New Computer NORC" , 4/2 (Feb.), 10 0 (continued ~38- on page 40) -----------------------------. CIRCUIT DESIGN ENGINEERS for the FALCON GUIDED MISSILE r~-------------I I I Write to : I ENGINEERING I I STAFF RELATIONS HUGHES Aircraft Company : Tucson, Arizona I I L ______________ ~ So accurate and deadly is the Hughes Falcon guided missile produced in Tucson, Arizona~ for the u.s. Air Force, that it has knocked maneuvering drone bombers out of the air even without an explosive warhead. Although its electronic brain can outwit any enemy bomber, it is the smallest guided missile in production. Because of this small size and consequent extr~me miniaturized packagillg, new production techniques have had to be conceived. This leads to production testing of individual parts, small integrated units, self-contained components, complete integrated sy-stems, and simulated environmental performance. The development of equipme~t for producing and testing of such a missile provides a continuous challenge to engineers experienced in electronic circuit design including the following: Pulse-Power Supply-Transistor-IF and RFClamping-Wave Shaping-Switching-Phase Shift-Input-Output-Modulator-Discriminator-Feedback-Video Circuits. -.39 - INDEX {continued from "Economic Changes from Automation" (in The Editor's Notes),4/5 (May), 4 "Economies in Design of Incomplete Selection C i rcuits with Diode Elements", by Arnold 1. Dumey, 3/10 (Dec. 1954), 36 Eisenpress, Harry, and others, "Charting on ,Auto~ matic Data Processing Systems", 4/8 (Aug.), 21 Electronic Computer Conference, Darmstadt, Germ~, Oct. 1955,4/8 (August), 1955 "Electronic Computers and Related Topics -- Fo u r Special Surmner Courses", by Arvid Jacobson, 4,.5 (May),20 "Electronic Scanning and Detection of Poss ib 1 e, Cancer Cells" by Neil' Macdonald (in Forum), 4/3 (March), 34 ' Elmore, William B., "Reliability in Elec t ron i c Data Processors", 4/5 (May) , 6 Equations, solution by analog computer, 4/3 (Ma~, 12 ' F: "Fences" Un The Editor's Notes), 4/4 (Aprill,4 "The Finan-Seer" by E. L. Locke, 4/2 (Feb.), 14 "Finding Out that Somethin'g Exists" by Neil Macdonald, 4/1 (Jan.), 23 Finn, D. L., "Conference on Instrumentati 0 n for Data Handling, Atlanta, November, 1955" (i n Forum), 4/9 (Sept.), 30 "First Supersonic Flight Simulator" by Neil Macdonald, 4/5 (May), 40 Fixed-point computers, numerical representation,in 4/5 (May), 10 ' Fluid flow, use of analog computers, 3/10 {Dec. 1954),24 Forbes, George F., "The Digital Differential AnalY2:er", 4/1 (Jan.), 8 Forsythe, George E.,' "Collection of Materia 1 . 0 n , Exploitation of Automatic Digi tid Computers " (in Forum), 4/7 (July), 31 Forum -- SEE specific author, subject, or title "Found -- A 'Lost' Moon" by Dr. Paul Herget, 4/11 (Nov.), 10 "Franchise" by Isaac Asimov, 4/9 (Sept.), 17 G: Generation of random numbers, 4/3 (March), 10 Gilchris t, Bruce, "Computers and Weather Pre di ction, 4/3 (March), 8 "Glossary of Terms in the Fi~ld of Computers and Automation" (second edition, cumulative), 3/10 (Dec. 1954), 8 Greeting to Computers, pU2:2:1e, 3/10 (Dec. 1954),4i solution, 4/1 (Jan.), .13 Griffi th,' L. E., "Automatic Answering of Inquiries"', ' 4/11 (Nov.), 6 Gruenberg, Elliot L., "Thinking Machines and Human Personali ty", 4/4 (April), 6 . H: Harlow, Dr. Harry F., "The Brain and Learned Behavior", 4/10 (Oct.r, 6 Heat Transfer, use of analog computers, 3/10 (Dec. 1954),24 Herget, Dr. Paul, "Found --A 'Lost' Moon", 4/11 (Nov.), 10 Hopper, Dr. G. M., "Automatic Coding for Digi ta 1 Computers", 4/9 (Sept.), 21 Householder, Alston S., "Computers and Computation, Abroad and Here", 4/2 (Feb.), 32 Householder, Alston S., "Mathematics, the Schools and the Oracle", 4/7 (July), 6 "The Human Relations of Computers and Automation", by Fletcher Pratt, 3/10 (Dec. 1954), 6 I: IBM 702,4/9 (Sept.), 6 Index, Dec. 1953 to Nov. 1954, 3/10 (Dec. 1954~40 Industrial Electronics Conference, Detroit, Sept. 1955,4/7 (July), 32 page 38),', Inquiries, automatic answering of, 4/11 (Nov.), 6 "An Inside-Out Magnetic Drum" by Neil Macdonald, 4/1 (Jan.), 26 Intelligence, variation in, 4/10 (Oct.), 4 Inventory problem, 4/9 (Sept.), 6_ J: Jacobson, " Arvid, "Electronic Computers and Related Topics -- Four Special Summer Courses", 4/5 (May), 20 Joint Computer Conference -- SEE Eastern J 0 i n t Computer Conferencei Western Computer Confer. ence , Jones, J. Melvin, "Marginal Checking: An Ai d in Preventive Maintenance of Computers", 4/4 (A, pril) , 10 ' "Justifying the Use of an Automatic Computer" by Ned Chapin, 4/8 (August),' 17 K: Keefe, T. J., Jr~,' "Truer Input Functions in Electronic Analog Computers", 4/1 (Jan.), 27 L: Learned'behavior and the brain, 4/10 (Oct.),6 "Linear Programming and Computers: Part 1" b Y Chandler Davis, 4/7 (July), 10 "Linear Programming and Computers: Part 2" b Y Chandler Davis, 4/8 (August), 10 Literature searching, 4/1 (Jan.), 26 Locke, E. L., "The Finan-Seer", 4/2 (Feb.), 14 M: Macdonald" Neil, "Automatic Programmed Co mponent Assembly System", 4/2 (Feb.), 34 Macdonald, Neil, "A Big Inventory Problem and the IBM 702", 4/9 (Sept.), 6 Macdonald. Neil, "Electronic Scanning and Detection of Possible Cancer Cells", 4/3 (March), 34 Macdonald, Neil, "Finding Out that Something Exists", 4/1 (Jan.), 23 Macdonald, Neil, "First Supersonic Flight S i mulator", 4/5 (May), 40 Macdonald, Neil, "An Inside-Out Magnetic Drum", 4/i (Jan.), 26 Machinery and Allied Products Institute (MAPI) , address of, 4/10 (Oct.), 38 Maginniss, F. J., '~roposed Symposium on Numerical Analysis" Un Forum), 4/9 (Sept.), 31 Magnetic drum, 4/1 (Jan.), 18i 26 Magnetic Reading Head, 4/8 (August), 24 Maintenance of computers, 4/4 (April), 10 Manning of computers, 4/10 (Oct.), 28 "Marginal Checking: An Aid in Preventive Ma i ntenance of Computers" by J. Me~vin Jones, 4/4 (April), 10 "The Marketing of a Computer" (in The Ed i tor's . Notes), 4/9 (Sept.), 4 "Mathematics, the Schools and the Oracle", b y Alston S. Householder, 4/7 (July), 6 , frkCall, J. B., "Binary Ari thmetic" (in For u m) , 4/1 (Jan.), 11 McCracken, D. D., "Debugging Computer Programs" (in Forum), 4/2 (Feb.), 27 -McPherson, James L., and others, "Charting 0 n Automatic Data Processing Systems", 4/8 (August), 21 "A Mechanical Analog Computer for Solving Linear Simul taneous Algebraic Equations" by Cy r i 1 P. Atkinson, 4/3 (March), 12 Meeting -- SEE Conference MIDAC (Michigan Digital Automatic Comp u te r) , problems for, 4/2 (Feb.), 6 Michigan, Universi ty of, SUlllIler Session Not e s on Computers and Data Processors, 4/U(Nov.), 9 . (continued - 40 - ' "Mister Andrew Lloyd" by Richard W. Wa 11 ace , 4/11 (Nov.), 14 on page 42) ·. . ..; ., ~ ~ . ~ T '~O""_ "'" ••W • il "'.~' -., ~ t ;'.~ • r i\ : ,.• :.novv Univac·s speed is doubled! The famous Univac® of Remington Rand has widened still further 'its lead over other electronic business computing systems. Univac is still the only 'completely self-checked system ... the only 'one which can read, write, and compute simultaneously without extra equipment. ,And now, the Univac II adds to these superior features the speed of magnetic-core memory. The Remington Rand magnetic-core a ELECTRONIC COMPUTER DEPARTMEN, memory is more than a laboratory promise. It has been in actual customer use for over a year, passing all tests with flying colors in the first cotpmercially available electronic computer to use core storage successfully; , Univac's internal memory capacity has also been doubled, giving instantaneous access to 24,000 alpha-numeric characters. If needed, this can be further increased to 120,000 characters. .~«IIJTL ,-.:.--~-~- DIVISION .... ~. -_. ~ OF SPERRY RAND CORPORAl ION - 41 - Univac's external memory-magnetic tape-now has greater capacity, too, increasing input and output to 20,000 characters per second ... equivalent to reading or writinK' every character on this page over 1,000 times a minute. These new Remington Rand developments can be incorporated into any existing Univac installation to double its speed of operation and to increase still further its proved economies. ROOM i23,4, 315 FOURTH AVENUE, NEW YORK 10, N. Y. INDEX ( con tin ue d iii tchell, James P., "The Skills of the Am e ric an fro m p age Work Force", 4/5 (May), 29 Monkey Wrench" by Gordon R. Dickson, 4'5 (May), 21 !!:. National Bureau of Standards, "A Rotating Reading Head ,for Magnetic Tape and Wire': 4/8 (Aug.), 24 National Simulation Conference, Jan. 1956, 4/7 (July), 3 2 ' N?tional Telermtering Confer.ence, 4/1 (Jan.), 4 Naval Ordnance Research Computer (NORC), 4/2 (Feb.), 10 "New Patents" by Raymond R. Skolnick, 4/11· (Nov.\34 Nolan, John E., "Analog computers and Their AWlication to Heat Transfer and Fluid Flow--Part 2", 3/10 (Dec., 1954), 24 Nolan, John E., "Analog Computers and Their AWlication to Heat Transfer and Fluid Flow--Part 3", Bibliography, 4/1 (Jan,), 31 Nurmrical analysis, proposed symposium, 4/9 (S~t.), 31 "Nurmrical Representation in Fixed-Point Computers" by Beatrice H.,~.Qrsley, 4/5 (May), 10 0: Oracle, 4/7 (July), 6 Orente,:Ro~e J., "The Book Reviewer", 4/7 (July),22 Orkild, CarlO., "Approaching Automation in a Casualty Insurance Company", 4/2 (Feb.), 19 P: Papers and Articles on Computers (in The Editor's Notes), 4/10 (Oct.), 4 "Patents", by Hans Schroeder, 3/10 (Dec. 1954),35; 4/1 (Jan.), 17; 4/2 (Feb.), 33; 4/3 (March~29; 4/4 (April), 46; 4/7 (July), 30 Patents by Raymond R. Skolnick, 4/11 (Nov.), 34 Personality, and thinking machines, 4/4 (April), 6 Personnel for computers, 4/10 (Oct.), 28 "The Place of Computers in Society" (in The Editor\; Notes), 4/7 (July), 4 Population of automatic computers, estimated comrmrcial, 4/3 (March), 30 Pratt, Fletcher, ''The Human Relations of Computers and Automation", 3/10 (Dec., 1954), 6 "Problems for Students of Computers" by John W. Carr III, 4/2 (Feb.), 6 ''Problems Involved in the Application of Electronic Digi ial Computers to Business Operations" by John M. Breen, 4/3 (March), 16 ''Products and Services for Sale in the Com p u ter Field", (cumulative roster) 4/6 (June), 118 "Products and Services in the Computer .Fie1d'! ~.1pha~ betic list of types 4/4 (April), 37; 4/6 (June)" 48 . • Programming, automatic, 4/9 (Sept.), 4, 25; 4/10 (Oct.), 15 Progranming, automatic progranming of produc tio n machinery, 4/7 (July), 2 9 . Programming, linear, 4/7 (July), 10; 4/8 (AugJ,lO Progranming Research Section, Remington Rand, "Automatic Progranming: The A 2 Compiler S y s t em" Part 1,4/9 (Sept.), 25; Part 2,4/10 (OctJ15 "Proposed Symposium on Numerical Analysis" by F.J. Maginniss (in Forum), 4/9 (Sept.), 31 "Publications for Business on Automatic Computers: A Basic Listing" by Ned Chapin, 4/9 (Sept.), 13 .Q:. "Question" by Issac Asimov, 4/3 (March), 6 R: "Random Numbers and Their Generation" by Gordon Spenser, 4/3 (March), 10 Raskin, A. H., "Automation Puts Industry on Eve of Fantastic Robot Era--Its Effect on Wo rker s Spurs Unions' Drive for Annual Wage", 4/5 (May),27 "~e 40 ) "fRecognh:ing Spoken Sounds by Means of a Comp1'ter': by Andrew D. Booth, 4/2 (Feb.), 9 Reference information, types published, 4/1 (Jan.), 23 . "Reliability in Electronic Data Processors" by William B. Elmore, 4/5 (May), 6 Remington Rand, Programming Research Section, '~ur matic PrograJ1DIling: The IA 2 Compiler System" Part 1, 4/9 (Sept.), 25; Part 2, 4/10 (Oct.\15 "Roster of Automatic Computers", (cumulative),' 4/2 (Feb.), 23; (supplermnt)-, 4/4 (April):41 ''Roster of Automatic Computing Services': (cumulative) , 4/1 (Jan.), 20; 4/6 (June), 123 "Roster of Organizations in the Computer Fi e 1 d" (cumulative), 4/6 (June), 103 "Ros ter of Organizations in the Field of CanJllters and Automation", supplements: 3/10 ( Dec. 1954),23; 4/1 (Jan.), 36; 4/2 (Feb.), 30; 4/3 (March), 24 ,"A Rotating Reading Head for Magnetic Tape and Wire", by National Bureau of Standards, 4/8 (Aug.), 24 S: Salveson, M. E., "The Tale of a Cow", 4/8 (Aug.), 20 "Schroeder, Hans, "Computers to Make AdministratiYe Decisions?", 4/3 (March), 28 Schroeder, Hans, "Patents", 3/10 (Dec. 1954),35; 4/1 (Jan.), 17; 4/2 (Feb.), 33; 4/3 (March), 29; 4/4 (April), 46; 4/7 (July), 30 .Science Fiction (in The Editor's Notes), 4/2 (Feb.),4 Science Fiction: "The Book Reviewer" by Rose J. Orente, 4/7 (July), 22 "The Finan-seer", by E. L. Locke, 4/2 (Feb.),14 "Franchise" by Isaac Asimov, 4/9 (Sept.), 17 "Mister Andrew Lloyd", 4/11 (Nov.), 14 "The Monkey Wrench", by Gordon R. Dickson, 4/5 (May), 21 "Question", by 1. Asimov, 4/3 (March), 6 Shera, Dean Jesse H., "Conference on 'The Practical Utilization of Knowledge', Cleveland, January 1956", 4/9 (Sept.), 30 Shiskin, Julius i "Charting on Automatic Data· Processing Systems", 4/8 (Aug.), 21 Shively, Harmon G., "Automatic Progranming of Production Machinery", 4/7 (July), 29 "The Skills of the Armrican Work Force" by Jarms P. Mitchell, 4/5 (May), 29 Skolnick, Raymond R., "New Patents", 4/11 (Nov), 34 "The Significance of the New Computer NORC" by W. J. Eckert, 4/2 (Feb.), 10 . Simulator, supersonic flight, 4/5 (May), 40 "A Small High-Speed Magnetic Drum" by M. K. Taylor, . 4/1 (Jan.), 18 "Some Curiosities of Binary Arithmetic Useful in Testing Binary Computers" by ~drew D. Booth, 4/8 (Aug.), 33 Spenser, Gordon, '~andom Numbers and. Their Generation", 4/3 (March), 10 . Spenser, Gordon, "Statistics and Automatic Computers", 4/1 (Jan.), 6 Spoken sounds, recognition by a computer, 4/2 (Feb.), 9 . "Statistics and Automatic Computers" by Go r d Qg. Spenser, 4/1 (Jan.), 6 Stoller, Mil ton, "Eastern Joint Computer Conference, Philadelphia, Dec. 1954'\ 4/1 (JanJ,14 Students of computers, problems for, 4/2 (Feb.),6 Symposium--SEE Conference . (continued - 42 - on page 46) NEW PATENTS Raymond R. Skolnick, aeg. Patent Agen~ Ford Instrument Co., Div.,of Sperry Rand Corp., Long Island City, N.Y. The"following is a compilation of patents pertaining to computers and associated equipment from the Official Gazette of the UniUrl States Patent Office, dates of issue as in d ic a ted. Each entry consists of: patent numbe r I i n- . ventor(s) I assignee I invention. July 5. 1955: 2,712,269 I Robert F. Garbarini. Woodside, Lisle L. Wheeler, Garden Ci~ •. and John R. Ericson, Westbury, N.Y. I The ~errj Corp. / Computing apparatus for a dive-borrtr sight. 2,712, 415 / Raymo.nd G. Piety, Bartlesville, Okla. / Phillips Petroleum Co. / Op tic a 1 computer for multiplying algebraically two functions. July 12. 1955: 2,713,135 / F. Sutlerland Macklem, Freeport, N. Y. I Servo Corp. of America, New Hyde Park, N.Y. / An interpolation servomechanism. 2,713,143 I Charles Dickens Bock, New York, N. Y. / American Bosch Arma Corp. / An electromechanical resolver. July 19, 1955: 2,713,456 / Eugene E. Reynol~ Richmond, Calif.·1 Marchant Calculators, Inc. / A machine for translating binary values to decimal values. 2,713,457 / Frank W. Bubb, Webster Groves, Mo. I Phillips Petroleum Co. / A colDftlting system. 2,713,674 / William F. ~chmitt, Philadelphia, Pa. I Remington. Ra~dt .Inc., Philadelphia, Pa. / A flip-flop circuit using a sfngle core. 2,713,675 I William F. Schmitt, Philadelphia, Pa. / Remington Rand,' Inc., Philadelphia, Pa. / A single core binary counter. 2,713,680 I Erik Acket'lrlind, Redondo Beac h, Calif. / Northrop Aircraft, Inc., Hawthorne, Calif. I A device for connecting rotational . motion of an object to significant electrical potentials. July 26. 1955: 2,714,180 I John C. Man 1 e y, Barrington, R.I. / Reconstruction Finance Corp., Boston, Mass. / An electronic imp~e counting device. 2,714,202 / James R. Downing, Chicago, 111./ Cook Electric Co., Chicago, Ill. / A recording system utilizing a single control signal capable of controlling two characteristics of the signal. 2,714,204 I Bernard Lippel and.Joseph A. Bue~ ler, Red Bank, N.J. I United S tat e s 0 f America I Apparatus for parallel translation of digital code group signals from cy c 1 i c binary to standard binary code. August 2. 1955: 2,714,658 / Alexander Greenfield, Detroit, Mich. I Bendix Aviation Oor~, Detroit, Mich. I A pulse source for providing a plurality of pulses in a given sequence. 2,714,693 I Christiann J. Van Eyk, Byram, Con~ I - / Electric servo control circuit. 2,714,701 I Edward Joseph Henley, Chicago,Ill.1 American Telephone and Telegraph Co. I Voltage regulation circuit • . 2,714,704 / Wendell C. Morrison, Pr in c e ton, N. J. / Radio Corp. of America I Quantizin g modulation circuit arrangement. 2,714,705 / Philip Eckert Volz, Florham Park, N. J. I Radio Corp. of America / Electr on i c phase shifting system •. 2,714,708 I Glenn N. Howatt and Abraham I. Dranetz, Metuchen, N. J. / Gul ton Mfg. Cor p • , Metuchen, N. J. I Delay lines. August 9, 1955: 2,714,901. I Louis Cas per, Richmond Hill, N. Y. I Electrotex Corp., New York, N. Y. / Electrical control system and apparatus. 2,714,947 I Roman J. Dolude, Los Angeles, Calif. I Summers Gyroscope Co., Santa Monica, Calif. I Servo mechanism (mechanical). 2,715,182 / Amasa S. Bishop,. Cambridge, Mass.1 United States of America I Variable rat e sweep voltage generator. 2,715,188 I Donald F. Jameson, Rochester, N.Y.I Stromberg-Carlson to. / Pulse generator. * * • MANUSCRIPTS \ con tin u e d • p age 37) Discussion. We desire to print in "Forum" briEf discussions, arguments, announceroonts, news, letters, descriptions of remarkable new devel~ opments, etc., anything liketly to be of ~ter est to computer people. Payments. In many cases, we make small to ken payments for articles, pa~rs, and fiction, if the author wishes to be paid. The rate is ~ or 1 c a' word, the maximum is $20 or $40, and both depend on length in words, whether prinUd before, whether article or paper, etc. - - 43 - . ! r' 0 netics, automation; etc., ancr-Uleir 1inplicat-ions, and which at· the same time is a good stoty. Ordinarily, the length should be 1000 to 4000 words. END - MAGAZINES RELATED TO COMPUTERS AUTOMATION - ROSTER (Edition 2, Cumulative, information as of November 3, 1955) The purpose of this Roster is to report mag~es having some relation ,to the field of computers am automation: computing· machinery,' computing'sys tens, data-handling equipment, automatic control, automatic materials handling, etc. Each Roster entry when complete contains: ,name of the magazine I frequency I publisher and address I emphasis I audience and availability I circulation I advertising'l some notes and comments. We shall be grateful for any additions or corrections that· any reader is able to 'send us. Although we have' tried to make this Roster complete and accurate, we assume no liabil'i ty for any statements expressed or implied. , For more information about any of these magazin~ inquiry should be addressed to the publisher of ,the magazine. American Business I monthly I Dartnell Ptbl.icatiom, 4660 Ravenswood Ave., Chicago 40, Illinois I ,emphasis: management, office administration, 'office methods, finance I annual subscription rate, $4.00 I -'I contains advertising. Occasional articles on computers. Automatic Control I' monthly I Reinhold Publishing Co., 430 Park Ave., New York 22, N. Y. /' elJlXIasis: aid management in making more and better use of automatic control in every possible way I free to management men in the control field; $10~00 annual subscription to others I about 30,000, controlled I contains advertising. ,Articles on computers in each issue. Usually one or more. Automation I monthly I Penton Publ ishing Company, Penton Bldg., Cleveland 13,Ohiol emphasis: management, supervision, and engineering,phases·of automation in their broadest sense I' free to selected prospective buyers or specifiers of components, machines, or equipment~ .v~lved in automatic operations; $10.00 annual subscription to others I about 25,00~anbriUed ,I contain~ advertising. Ordinar.:Uy an article on computers in , each issue. Computers and Automation I monthly I Berkeley Enterprises, Inc., 36 West 11 St., New York 11, N. Y. I emphasis: articles, papers, reference information and some science fiction' on computers and their implications and applications, including automation I directed to persons interested in automatic computers and their im-plications and applications; paid-for; annual subscription rate $5.50 I about 2000 Icontaim advert'is ing. ,' ' " Devoted to' 'computerS and their, implications and appl ications. " Control Engineering I monthly / McGraw Hill Publishing'Co., 330 West 42 St.,' New York' 36, N.y. I emphasis: use of a small amount of power to control a large aroount; instrumentation; automatic' control systems I directed to design and process engineers and technica11ytrained'man;.. agement men; annual subscription rate $3.00 I about 28,000 I contains advertising. Several. articles on computers in each issue. Data Processing Digest I IOOnthly I Canning, Sisson and Associates, 914 South Robertson Blvd., Los Angeles 35, Calif. I emphasis: digests of co~ puter articles; information, appli~ations,eq~ ment, etc. I directed to management; paid-fori annual subscription $24.00 I no advertising. A collection of abstracts or excerpts from articles originally appearing in a wide variety, of publications. ,Material is selected from these publications for condensation when it is "meaningful in the field of data processing". Digi tal' Compu'ter Newsletter I quarterly' I Office of Naval Research, U. S. Navy Dept'." Washington '25, D.C. I emphasis: news of digital ,computers and data-processing I a,vailable .free .to government agencies' and government contractors 'only; reprinted in the "Journal of the Association1br Computing Machinery", which see I est~ 1000 I no advertising. Electronic Design I monthly I Hayden, 'Publishing Co., 127 East 55,St., New York 22, N. Y. /. emphasis: electronic design I circulation only to electronic design engineers I 24,000; controlled,l contains advertising. Its relation to computers is the design of electronic gear that may be,used in them. Vol. 3, No. 10, October, 1955, included articles on components and building blocks needed for analog ,and digitm computers, and ideas for computer de~ Electronics I monthly'l McGraw-Hill Publishing 'Co" 330 West 42 St., New York 36, N.Y. I emphasis: electronic equipment, its design, specifications, uses, production techniques Icirculation , only to persons engaged in theory, research, design production, maintenance and ,use of ele'ctronic and industrial control equipment; $6.00 annual subscription I - I contains aavertising. Its relation t~ computers is the design of electronic equipment that may be used in them~ Industrial'Laboratories I Industrial Laboratories Publishing Co., 201 North Wells St.; Chicago 6, Ill. I monthly I. emphasis: reporting significant developments ,to scientists and engineers interested in technological progress I,free to persons holding responsi~le positions in industrial research; to others, annual subscription $10.00 I contains advertising. " Occasional articles deal with computing machinery and its uses. Computing mach(continued - 44 - OD page 46) ARE YOU TROUBLED BY PEOPLE ? etc. AGE Years m m erhaps you are concerned with ACTUARIAL or DEMOGRAPHIC situations. f not, you may have other RENEWAL or REPLACEMENT problems. [El ere is a COMPUTOR MODEL which represents in rough outline the essential DYNAMICS of POPULATION GROWTH. Wuch a SIMULATOR can swiftly yield countless answers concerning BIRTH RATES, DEATH RATES, MORTALITY and other situations involving VITAL STATISTICS. o till more - and less - rigorous treatments of tliis problem and many other phenomena can be handled readily by these operational blocks o illit~~ir~~\\ POPULATION dder - @oefficient - m ag as well as the wide assortment of other standard ELECTRONIC ANALOG COMPUTING COMPONENTS. available from GAP/R George A. Philbrick Researches, Inc., 230 Congress St., Boston 10, Mass. . Write to us for more information - 45 - MAGAZINES (continued mentioned in ~ ines and components are New Products section. Instruments and Automation / monthly / Instrumen~ Publishing Co., 845 Ridge Ave., Pittsburgh 1, Pa. / emphasis: instruments, instrumentation, and automatic control/directed to management and engineers primarily responsible for the specification, purchase, and installation of instruments and automatic controls; paid-for; annual subscription rate $4.00 / about 18,000/ contains advertising. Occasional articles on co~uters. IRE Transactions on Electronic Computers /quarterly / Professional Group on Electronic Computer~ Institute of Radio Engineers, One East 79 St., New York 21, N.Y. / emphasis: the entire field of electronic computers / annual subscription for nonmembers, $17.00 / - / no advertising. Issue of June 1955 contains a survey of analog computer installations. , ISA Journal/monthly / Instrument Society afAmerica, 1319 Allegheny Ave., Pittsburgh 33, Pa. / emphasis: instruments and instrumentation, and news and information for members / directed to members of the society; paid-for; annual subscription rate $5.00 / about 8000 / contains advertising. Occasional articles on computers. The Journal of Computing Systems / at intervals / The Institute of Applied Logic, 3101 East 42 St., Minneapolis 6, Minn. / e. . asis: a "coDDnon rmeting ground" for the fields of logical and ma1tematical systems and computing machinery / $5.00 annual subscription / - / no advertising. Papers on logical and mathematical~ms in the field and topics of computing machinery. Journal of the Association for Computing Machinety, 2 East 63 St., New York 21, N. Y. / emphasis; technical papers on automatic computing machinery submitted by members / directed to members of the 'association; annual subscription rate $6.00 (includes dues) / est. 1800 /no advertising. Journal of the Society for Industrial and Applied Mathematics / quarterly / Society for Industrial and Applied Mathematics, P.O. Box 7541, Philadelphia 1, Pa. / emphasis: mathematical techniques and methods and their applications /directed to mathematicians and other technical and scientific personnel; annual subscription $8.00 / - / contains advertising. Has incl uded a series of articles on automatic digi tal computers in industrial :research. Mathematical Tables and Other Aids to Computation / quarterly / National Research Council, Wa sitington, D.C. / emphasis: mathematical tables, numerical analysis, some developments in computing'machinery / directed to mathematicians, computer men, etc; paid-for; annual subscription rate $5.00 / est. 1500 / no advertising. Mechanical Translation / - / Dept. ~f Modern Langu~ges and Research Laboratory of Electronics, Mass. Inst. of Technology, Cambridge, Mass. / emphasis: exclusively on the translation of languages with the aid of machines / annual subscription $1.00 / - / no advertising. Proceedings of the IRE / monthly / Institute of Radio Engineers, One East 79 St., New York 21, from page 44) N.Y. / emphasis: technical developments in radio, electronics, television, communication, etc. / directed to members of the IRE, radio engineers, etc.; paid-for; annual subscription rate about $13.00 (includes dues) / about 38,000 / contains advertising. Most technical papers on electronic aspects of computers, submitted by ~, are published in the "IRE Transactions on Electronic Computers" (see above) Scientific American / monthly / Scientific American, Inc., 2 West 45 St., New York 36, N. Y. / emphasis: ideas and developments in all ph~s of science, reported for educated men in other specialties / directed to technical management; paid-for; annual subscription $5.00 / abo u t 120,000 / contains advertising. Occasional articles on computers and automation. Systems / bi-monthly / Systems Maga~ine,Remingtqn Rand, Inc., 315 Fourth Ave., New York 10, N.Y. / emphasis: interchange of ideas on business operation by management / free to many management men; 35~ single copy price / - / contains Remington Rand advertising. Many articles on computer applications, especially Univac. - * END * INDEX (continued - from T: * page 42) "The Tale of a Cow" by M. Eo. Salveson (i n Forum), 4/8 (Aug.), 20 Tarrant, W. K., "Automatic Data Processing Forum, New York", (in Forum), 4/10 (Oct.), 38 Taylor, M. K., "A Small High-Speed Magnetic Drum", 4/1, (Jan.), 18 Telerretering: National Telemetering Conference, 4/1 (Jan.), 4 "Thinking Machines and Human Personality" by Elliot L. Gruenberg, 4/4 (April), 6 "Truer Input Functions in Electronic Analog Computers" by T. J. Keefe, Jr., 4/1 (Jan.), 27 U: UAW-CIO, "Automation: A Report to the U A WCIO Economic and Collective Bargaining Conference", 4/5 (May), 14 Unions' drive for annual wage, effect of automation on, 4/5 (May), 27 "University of Michigan Sunmer Session Note s on Computers and Data Processors" by John W. Carr, (in Forum), 4/11 (Nov.), 9 University of Wisconsin Conference, August, 1955, 4/1 (Jan.), 4 V: "Variation in Intelligence" (in The Edi tor's Notes), 4/10 (Oct.), 4 W: Wallace, Richard W., "Mister Andrew Lloyd" , 4/11 (Nov.), 14 Weather prediction, 4/3 (March), 8 Weber, F. Palmer, "The AdVance of Automation" (in Forum), 4/11 (Nov.), 31 "Western Computer Conference and Exhibit, Los Angeles; March, 1955: Titles of Papers and Abstracts", 4/4 (April), 38 Western Joint Computer Conference, notice, 4/1 (Jan.), 4 "Who Are Manning the New Computers?" by J 0 h n M. Breen, 4/10 (Oct.), 28 "Who's Who in the Computer Field", cumulative, 4/6 (June), 6; supplement 1, 4/6 (June), 148; supplement 2, 4/10 (Oct.), 29 Worsley, Beatrice H., "Numerical Representation in Fixed-Point Comput.ers". 4/5 (May), 10 - - 46 - ~N D, - ARE YOU LOOKING FOR A CHRISTMAS PRESENT FOR AN INTELLIGENT BOY OR A BRIGHT YOUNG MAN? G E N I A Electric SOME OF THE SIMPLE ELEC'IRIC BRAIN MACHINES THAT YOU CAN MAKE WITH TIIE GENIAC KIT Logic Machines Comparing Reasoning Syllogism Machine Intelligence Testing Cryptographic Machines Secret Coder Secret Decoder Combination Locks Game Playing Machines Tit-Tat-Toe Nim Brain c Construction Kit With this kit you can make over 30 small electric brain machines that compute ar i th metic a 11 y, sol v e puzzles, play games, reason logically, handle ciphers, and exhibit intelligent behavior. The kit con t a ins over 400 parts, including six multiple swi tches 0 f a new design, and a 64-page manual wi th simple and c 0 mplete instructions. Each machine 0 per ate son 0 n e flashlight battery; all connections with nuts and bolts, no soldering required. This kit is the outcome of five years of design and development work with small robots by Berkeley Enterprises, Inc. It is simple emugh for intelligent boys, yet instructive to anyone because it exhibits the amazing capacities of computing and reasoning circuits. MONEY BACK GUARANTEE: Returnable in seven days (if in good condition) for full refund, ~f not satisfactory. PARTS LIST: Arithmetic Machines (Decimal and Binary) Adding Machine Subtracting Machine Multiplying Machine Dividing Machine Arithmetical Carrying Binary-Decimal Converters 1 64-page Manual written by Edmund C. Berkeley) 6 Multiple Switches of a new design 1 Mounting Panel 1 Flashlight Battery 1 Battery Clamp 10 Flashlight Bulbs 10 Bulb Sockets 50 Feet of Insulated Wire Nuts, Bolts, Jumpers, and other necessary hardware Simple Circui ts Burglar Alarm Automatic Oil Furnace Circuit, etc. Puzzle Machines The Space ,Ship Airlock The FOX, Hen, Corn, and Hired Man Douglas Macdonald's Will The Uranium Shipment and the Space Pirates The TWo Jealous Wives (NO SOLDERING REQUIRED -- COMPLETELY SAFE -SCIENTIFIC -- ENTERTAINING -- INSTRUCTIVE) nuy YOUR KIT FROM THE ORIGINATOR -------------------Mail this Request or a Copy of It------------------------Berkeley Enterprises, Inc. 36 West 11 St., R137, New York 11, N. Y. Please send me the Geniac Kit. I enclose in full payment: ( ). $17.95, U. S. eastof Mississippi; ( ) $18.95, elsewhere in U. S.; ( ) $19.95, outside of U. IS. (I~ in good condition, it is returnable in seven days for full refund.) My name and address are attached. - 47 - (2) ROSTER ENTRY FORMS "Computers and Automation" publishes from tine to time reference information of the followin g three types: (1) a who's. who or roster of individuals interested in the computer field; (2) a roster of organi~ations active in the computer field; and (3) a classified directory o"r roster of produc t s and services offered in the computer field. The last cumulative editions of rosters' (1) an d (3) appeared in "The Computer Directory, 1955". The last cumulative roster (2) appears in this issue. If you are interested in sending information to us for these rosters and their supplements, following is the form of entry for each of these three rosters. To avoid tearing the magazine, the form may be copied on an, sheet of paper. (1) Name (please print) 2. Your Address? 3. Your 4. Its Address? 5. Your Title? 6. YOUR MAIN COMPUlER INTERES1S? Entry Form 1. Your 2. Address? _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ 3. Telephone number? _ _ _ _ _ _ _ _ _ _ __ 4. Types of computing machinery or components, or computer-field products and services that you are interested in? 5. Types of activity that you engage in: ( ) research ( )other (please explain): ( ) manufacturing ( ) selling ( ) consulting 6. Approximate number of your employees? _ ___ 7. Year when you were established? _ _ _ _ __ 8. Any conunents? _ _ _ _ _ _ _--'_ _ _ _ __ Who's Who Entry Form 1. Organi~ation organi~ation 's name? _ _ _ _ _ _ _ __ Organi~ation? Filled in by ______________________ Applications Business Construction Design Electronics Logic ( (\, ( ( ) ) ) ) Ti tIe _ _ _ _ _ _ _ _ _ _ _ Date ________ Mathematics Programming Sales Other (specify): 7. Year of birth? _ _ _ _ __ 8. College or last school? _ _ _ _ _ _ _ __ 9. Year entered the computer field? _ _ _ __ II; ----------_* - ________ * (3) Product Entry Form 1. Name or identification of product (or service)? 2. Brief description (20 to 40 words)? _____ 3. How is it used? _ _ _ _ _ _ _ _ _ _ _ __ 4. What is the price range? _ _ _ _ _ _ _ __ 5. Under what headings should it be listed? 6. Your 7. Address? _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ 10. Occupation? _ _ _ _ _ _ _ _ _ _ _ _ __ 11. Anything else? (publications, distinctions, etc.) organi~ation 's name? _ _ _ _ _ _ __ Filled in by ___________________ Title _ _ _ _ _ _ _ _ _ _ _ Date _ _ _ __ - 48 - ( NOW! dependable relays for printed circuits Maybe you, too, have been awaiting availability of a good relay for direct insertion into printed circuits. Now Automatic Electric can solve your problem with a miniature relay that is just right. 120 million operations, without a single readjustment or relubrication! That's what you get from.this rugged, improved Series SQD Relay, because it features a special heavy-duty bearing and bearing pin. Also a recess in the bearing plate retains an adequate supply of lubricant for long-term lubrication of the bearing pin. Consider these additional advantages: 1. The sections of the terminals that insert into the printed circuit board are NOT brazed or welded into place, but are integral parts of the coil terminals and contact springs-thus preventing IDternalloss in conductivity or continuity. 2. Terminal design permits direct plug-in of the relay into a printed circuit board, ready to be secured 'in place with any acceptable soldering technique. Usually the desired contact spring combination, or pile-up, is sufficiently large so that additional mounting (support) of the relay is not necessary. SQD Miniature Printed Circuit Relays are available with many different contact spring arrangements, and for a multitude of applications. Springs can be made of phosphor-bronze, ttBronco" metal, or other specialpurpose materials, as required. Of course the long life, heavy-duty features of the improved SQD Relay can be had in the conventional type of plug-in relay, if regular sockets are preferred for use, whether in printed circuitry or other applications. To get complete details, write: Automatic Electric Sales Corporation, 1033 West Van Buren St., Chicago 7, Illinois. In Canada: Automatic Electric (Canada) Lt~., Toronto. Offices in principal cities. RELAYS SWITCHES ..,,"m " """"'"' ",""'"~' " AUTDMATI[ - 49 - ELE[TRI[ CHICAGO COMPUTERS AND AUTOMATION December. 1954: The Human Relations of Computers and Automation -- Fletcher Pratt Analog Computers and Their Application to Heat Transfer and Fluid Flow -- Part 2 -- John E. Nolan Economies in Design' of Inco m plete Selection Circuits with Diode ElelOOnts -- Arnold I. DulOOY January. 1955: Statistics and Automatic Computers -- Gordon Spenser Eastern Joint Computer Conference, Philadelphia, Dec. 8-10,1954 -- Milton Stoller The Digital Differential Analy~er -- George F. Forbes A Small High-Speed Magnetic Drum -- M. K. Taylor ' An Inside-out Magnetic Drum -- Neil Macdonald February: Problems for Students of Computers John W. Carr, III Recogni~ing Spoken Sounds by Means of a Computer -- Andrew D. Booth The Significance of the New Computer NOR C W. J. &kertThe Finan-8eer -- E. L. Locke Approaching Automation in a Casuaity Insurance Company ~ CarlO. Orkild March: Question -- Isaac Asimov Computers and Weather Prediction -- Bruc e Gilchrist Random Numbers and Their Generation -- Gord 0 n Spenser Problems Involved in the Application of Electronic Digi tal Computers to Business Oper ations -- John M. Breen Computers to Make Administrative Decisions? -Hans Schroeder April: Thinking Machines and Human Personality-Elliot L. Gruenberg Marginal Checking -- An Aid in Preventive ~ tenance of Computers -- J. Melvin Jones May: Reliability in Electronic Data Process 0 r s -- William B. Elmore NUlOOrical Representation in Fix e d - Poi n t Computers -- Beatrice H. Worsley Automation -- A}Report to the UAW-CIO Economic and Collective Bargaining Conference The Skills of the AlOOrican Labor Force -- James P. Mitchell Automation Puts Industry on Eve of Fantas tic Robot Era -- A. H. Raskin The Monkey Wrench -- Gordon R. Dickson June: THE COMPpTER DIRECTORY, 1955 (164 page s) : Part 1: Who's Who in the Computer Field Part 2: Roster of Organi~ations in the Co mputer Field Part 3: The Computer Field: Prod uc ts and Services for Sale July: Mathematics, the Schools, and the Oracle-Alston S. Householder . The Application of Automatic Computing EquipIOOnt to Savings Bank Operations -- R. Hu n t Brown The Book Reviewer -- Rose Orente Linear Programming and Computers, Par t I -Chandler Davis August: The Automation of Bank Check Processing-R. Hunt Brown Linear Programming and Computers, Par t II -Chandler Davis I - 50 - Back Copies Justifying the Use of an Automatic Computer -Ned Chapin Charting on Automatic Data Process ing System s -- Harry Eisenpress, James L. McPherson, and Julius Shiskin A Rotating Reading Head for Magnetic Tape an d Wire -- National Bureau of Standards Sorre Curiosities of Binary Arithmetic Usefu 1 in Testing Binary Computers -- Andrew D. Booth September: A Big Inventory Problem an d the IBM 702 -- Neil Macdonald Publications for Business on Automatic Computers: A Basic Listing -- Ned Chapin Franchise -- Isaac Asimov Automatic Coding for Digital Computers -- G. M. Hopper Automatic Programming: The A-2 Compiler System -- Part 1 October: The Brain and Learned Behavior -- Dr. Harry F. Harlow Automatic Programming: The A-2 Compiler Syste m -- Part 2 Who Are Manning the New Computers? -- John M. Breen November: Automatic Answering of Inquiries -- L. E. Griffith Found -- A "Lost" Moon -- Dr. Paul Herget Mister AndreI" Lloyd -- R. W. Wallace REFERENCE INFORMATION (in various issues): Roster of Organi~ations in the Computer Field / Roster of Automatic Computing Services / Ros. ter of Maga~ines Related to Computer san d Automation / Automatic Computers: List/ Automatic Computers: Estimated Commercial Population / Automatic Computing Machinery: List 0 f Types / Components of Automati c Computing Machinery: List of Types / Products and Se rvices in the Computer Field / Who's Who in the Computer Field / Automation: Lis t 0 f Outstanding Examples / Boo k sand 0 the r Publications / Glossary / Patents BACK COPIES: Price, if available, $1. 25 eac h, except June, 1955,$6.00. Vol. I, no.l,Sept. 1951, to vol. 1, no. 3,. July, 1952: 0 u t 0 f print. Vol. 1, no. 4, Oc t. 1952: in. print. Vol. 2, no. 1, Jan. 1953, to vol. 2, no. 9, Dec. 1953: in print exce pt Ma rch, no.2, and May, no. 4. Vol. 3, no. 1, Jan. 1954, to vol. 3, no. 10, Dec. 1954: in print. Vo 1. 4, 1955: in print. A subscription (see rates on page 4) may be spec, ified to begin with the current month's or the preceding month's issue. WRITE TO: Berkeley Enterprises, Inc. Publisher of COMPUTERS AND AUTOMATION 36 West 11 St., New York 11, N. Y. The terminal with the right connections Looking for a special solder terminal? Your special is probably a standard at CTC. You'll find many terminals that you would normally consider specials included in CTC's 50 types of standard solder terminals. Whether you want regular size or miniature rivet type terminals for printed circuits to be dip soldered, CTC has a complete selection. Whatever your requirements - standard or custom, you can depend on CTC's guaranteed components. And there are good reasons for this dependability. Each manufacturing detail of every CTC terminal is double-checked for material and reliable performance. This quaUty control enables us to offer you guaranteed components - whether to government standards or your own. Standard CTC solder. terminals are silver plated brass, coated with water dip lacquer to keep them chemically clean for soldering. Special order finishes include hot tin, electro-tin, electro-tin-Iead, tinzinc, cadmium plate, gold flashing or gold plate. All finishes go through a periodic microscopic inspection for coating thickness and adhesion. This is but one of many ways "CTC's quality control serves you. In addition to terminals and boards, our quality control pays off for you in CTC capacitors, swagers, insulated terminals, coil forms, coils and a wide variety of hardware. For complete specifications and prices, write to Cambridge Thermionic Corporation, 430 Concord Avenue, Cambridge 38, Mass. West Coast Manufacturers contact: E. V. Roberts, 5068 West Washington Blvd., Los Angeles 16 and 988 Market St., San Francisco, California. Standard eTe Terminal Boards as well as those made to your own specifications by CTC are available. Standard in cotton fabric phenolic, nylon phenolic or grade L-5 silicone impregnated ceramic. Custom made in cloth, paper phenolic. melamine. or silicone fibreglas laminates. imprinted as required and lacquered or varnished to specifications MILV-173 and JAN-T-152 or to commercial standards. CAMBRIDGE THERMIONIC CORPORATION makers 0/ guaranteed electronic components, custom or standard - 51 - ADVERTISING IN ~~COMPUTERS AND AUTOMATION" Memorandum from Berkeley Enterprises, Inc. Publisber of COMPUTERS AND AUTOMATION 36 West 11 St., New York 11, N.Y. 1. What is "COMPUTERS AND AUTOMATION"? It is a monthly magazine containing articles, papers, and reference information related to computing machinery, robots, au tom a ti c con tro 1 , cybernetics, automation, etc. One importantpiece of reference information published is the "Roster of Organizations in the Field of Computers and Automation". The basic subscription rate is $5.50 a year in the United States. Single copies are $1.25, except June, 1955. "The Computer Direc't:ory" (164 pages, $6.00). For the titles of articles and papers in recent issues of the magazine, see the "Back Copies" page in this issue. 2. What is the circulation? The circulation includes :1900 subscribers (as or Nov. 10): over 300 purchasers of individual back copies; and an estimated 2500 nonsubscribing readers. The logical readers of COMPUTERS AND AUTOMATIO N are people concerned wi th the field of computers and automation. These include a great number of people who will make recommendation s t 0 their organizations about purchasing computmg machinery, similar machinery, and components, and whose decisions may involve very supstan~ tial figures. The print order for the De~. issue was 2400 copies. The overrun is largeiy held for eventual ~ale as back copies, and in the case of several issues the overr u n has been exhausted through such sale. copy that may be put under the photooffset camera without further preparation. Unscreened photographic prj nts and any other copy :requi ring additional preparation for photooffs e t should be furnished separately; it will be prepared, finished, and charged to the advertiser at small additional costs. In the cas e 0 f printed inserts, a sufficient quantity for the issue should be shipped to our printer, address on request. Display advertising is sold in units of a full page (ad size 7" x 10", basic rat e, $l90), tlVOthirds page (basic rate, $145), and half page (basic rate, $97); back cover, $370; inside front or back cover, $230. Extra for co lor red (full pages only and only in certain positions), 35%. Thto-page printed insert (0 n e sheet) , .$320; four-page printed insert (tw 0 sheets), $590. Classified advertising is sohl by the word (60 cents a'word) with a minimum of 20 words. ' 5. Who are our advertisers? Our advertisers in recent issues have included the following companies, among others: The Austin Co. Automatic Electric C04 Cambridge Thermionic Corp. Federal Telephone and Radio Co. Ferranti Electric Co. Ferroxcube Corp. of America General Electric Co. Hughes Research and Development Lab. International Business Machines Corp. Lockheed Aircraft Corp. Logistics Research, Inc. Monrobot Corp. Norden-Ketay Corp. George A. Philbrick Researches, Inc. Potter Instrument Co. Raytheon Mfg. Co. Reeves Instrument Co. Remington Rand, Inc. Sprague Electric C~ Sylvania Electric Products, Inc. 3. What type of advertising does COMPUTE R S AND AUTOMATION take? The purpose of the magazine is to be factual and to the point. For this purpose the kind of advertising wanted is the kind that answers questions factually. We recommend for the audience that we reach, that advertising be factual, useful, interesting, understandable, and new from issue to issue. We reserve the right not to accept advertising that does not meet our standards. 4. What are the specifications and cos t of advertising? COMPUTERS AND AUTOMATION~ published on pages 8~" x 11" (ad size, 7" x 10") and produced by photooffset,exceptthat printed sheet advertising may be inserted and bound in with the magazine in most cases. The closing date for any issue is approxima tely the 10th of the month preceding. If possible, the company advertising should produce final copy. For photooffset, the copy should be exac t 1 y as desired, actual size, and assembled, and may include typing 9 writing, 1 in e dra win g, printing, screened half tones, and any 0 th e r - 52 - MISSILE SYSTEMS MATHEMATICS The technology of guid~d missiles is literally a new domain. No field of science offers greater scope for creative achievement. The increasingly complex problems associated with missile systems research and development are creating new positions in the following areas for Mathematicians possessing exceptional ability: • • • • Guided Missile Systems Nuclear Physics Computer Research and Development Engineering Management Problems Inquiries are invited from those interested, in personal development in an appropriate scientific environment. AMERICAN MA~"HEMATICAL SOCIETY MEETING MISSILE SYSTEMS DIVISION Houston, Dec. 27·30 research and engineering staff Senior members of our technical staff will be available for consultation at the meeting. If you plan to attend, please contact our research and engineering staff for interview. LOCKHEED AIRCRAFT CORPORATION V.A.N NUYS, CALIFORNIA - 53 - ADVERTISING INDEX Ferroxcube Corp., East Bridge St . , Saugerties, N. Y. I Magnetic Core Materials I page 37 I CA No. 57 General Electric Co., Elec tronics Di v., Tub e Dept., Schenectady, N. Y.. I Computer Tubes I page 55 I CA No. 58 George A. Philbrick Researches, Inc .. , 230 Congre s s St., Bos ton 10, Ma s s. lEI e c t ron i c Analog Computing Components I page 45 I CA No. 59 Hughes Aircraft Co., Culver City', Cal if . I Help Wanted I page 39 I CA No. 60 Lockheed Aircraft Corp., California Div., Burbank, Calif. I Career Opportuni tit.s I p age 53 I CA No. 61 Lockheed Missile Systems Div., 7701 Woodle y Ave .. , Van Nuys, Calif .. I Missile Sys te m s Mathematics I page 2 I CA No. 62 Remington Rand, Inc . , 315 4th Ave .. , New Yo r k 10, N. Y. I Univac I page 41 I CA No.' 63 Sprague Electric Company, 377 Marsha 11 St., North Adams, Mass . I Pulse Transformer Ki t I page 56 (back cover) I CA No . 64 Sylvania Electric Products, Inc., 1740 BroOOway, New York 19, N. Y. I Pot'ITer Trans istor I page . 33 I CA No. 65 The purpose of COMPUTERS AND AUTOMATION is to be factual, useful, and understandable. Fo r 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, Wh at i s i t called? What does it do? Hmv well doe s i t work? What are its main specifications? We reserve the- right not to accept adverti sin g that does not meet our standards. is the index and a summary of advertisements. Each i tern contains: N arne and address of the advertiser I subj ec t 0 f the advertisement I page number where it appears I CA number iq case of inquiry (see note below) • FollOt~ing Arma Division American Bosch Arma Corp., Roosevelt Field, Garden City, L. I., New York I Engineering Opportuni ties I page 35 ICA No. 50 Automatic Electric Company, 1033 W. Van Buren St., Chicago, Ill. I Circuits I page 49 I CA No. 51 Bendix Aviation Corp., Research Lab. Div., Detroit 1, Mich. I Analog Computer Engineers I page 7 I CA No. 52 Berke ley Enterprises, Inc., 36 West 11 St., Net'IT York 11, N. Y. I Geniacs I page 47 I CA No.53 Cambridge Thermionic Corp., 447 Concord Ave., Cambridge 38, Mass. I Terminals I page 51 I CA No .. 54 Computers and Automation, 36 West 11 St., New York 11, N. Y. I Roster Entry Forms; B a c k Copies; Advertising I pages 48,50,52 I CA No. 55 Epsco, Inc., 588 Commonwealth Ave., Boston 15, Mass. I Delay Lines I page 7 I CA No. ~6 READER'S INQUIRY 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 below and send that form to us (lV'e pay postage; see the instructions). We shall then \forward your inquiries, and you will hear from the advertisers direc t. If you do not wish to tear the magazine, just drop us a line on a postcard. * _______________________________________ 0 0 - - - - - - - -_______________________________ READER'S INQUIRY FORM Paste label on envelope:~ Enclose form in envelope:-t - - - ---....-.--- -- - -- --...... --j- -- ----... - - - - - - --- - - - -- - - - - - - - - - - - - --: I I I READER'S -c 0 Name (please print) - __ .. -----.------ 0 ~; i~ - Please send me additional information on the following subjects for which I have circled the CA number: !! I 2 7 12 17 3 8 13 18 4 9 14 19 5 26 Z1 28 29 10 31 32 33 34 15 36 37 38 39 20 41 42 43 44 "n n U -.-'-- - - - - ~U u - - - - 54 - - - - 30 51 52 53 54 35 56 !iT 58 59 40 61 62 63 64 45 66 67 68 69 55 76 77 78 79 80 101 102 103 104 60 81 82 83 84 85 106 107 108 109 65 86 87 88 89 90 111 112 113 114 70 91 92 93 94 95 116 117 118 119 7\12 n ' ' ' ' U - - - - - - - - ~ ~ 100 - - 1211nIZ - - - - - 105 ilO 115 120 11 2361 11~ 11 2338 11 29 34 11 30 35 -. 136 1371381391.40 141 142 143 144 145 12"~ I~ I~"••I~ - - - - - - - IQ 1 -- ------ ~ LEFT: G-E computer tubes undergo a cut-off life test. The tubes are operated for long intervals with their grids biased to cut-off. Period·ic~lIy the tubes are given a cathode interface check, to make sure no "sleeping sickness", or failure to respond to changed grid voltage, has developed during_!ncctivity. RIGHT: extensive instrumentation is used to test tube electrical qualities that closely affect operation in computer circuits. Zero-bias plate current; cut-off performance; any difference in cut-off between twin- ... triode sections-these are three of many characteristics checked. ,.. G-E Computer Tubes are specially tested for qualities that safeguard computer reliability! General Electric pioneered special tubes for computers ... also developed tests such as those above, which assure that G-E tubes in your computer circuit can be relied on to meet designers' aims in all respects. The tests are specific in purpose. Each covers one or more tube characteristics important in computer use, and which closely influence the accuracy and reliability of tl)e equipment. There is 110 substitute for G-E computer-tl}./Je quality, which starts with special tube designextends through precision manufacture-concludes with exhaustive tube tests that relate directly to computer service. available for your present circuit needs, with new tubes constantly being added. Ask for "G-E Computer Tubes And Their Applications" (ETD-1140). 54 pages-just off the press. A book every designer and builder will find useful! Tube Department, General Electric Company, Schenectady 5, New York. * Also . . . there is no counterpart to G.E.'s range of special computer tubes now ill production. You have a choice of proved G-E types Progress /s * * • G-E computer-tube development is a continuing process, with new types being added regularly for faster, more advanced equipment, or to meet special customer requirements where volume warrants. Five types - proved, popular-already are in full production: GL-5844 GL-6211 GL-5965 GL-5915A GL-6463 Our Mosf /mpodt?ll1f P,otlvl!f GENERALfJ ELECTRI,~ - 55 - ~ ln "" ,." -.. .,,'.... ".," s. u,,' "H' " '.... " " ... - HERE'S THE IDEAL TOOL ENG I NEERING DEVELOPMEN T OF CI RC UITS USING PULSE TRANSFORMERS CHARACTERISTICS OF KIT TRANSFORMERS Type Induct. Leakag Pr i ~ (.H) (.H) 41Z1 0.5 1.5 4.0 4.5 7.0 41H 5.0 Ion 10 13 15 15 30 10 40 Dis!. Cap of Pri. ( •• F) Max . Nom P.W. Rang Ava il. Ratios (.sec) 0.5 1:1 1:1 3:1 5:1 15 11 11 1:1 1:1 3:1 5:1 1:1 8:1 1:1:1 8:8:1 "I,' :~ ,bl} ",{l..ll' """ 1
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