196510

196510 196510

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October, 1965

CD
Introducing Pre-School Children to the "Workings" of a Computer

t
r

,
No problem
Bell System data communications services
can move your business data at a wide range
of speeds; speeds that are compatible with
your data processing equipment.
Transmission can be over regular or private-line telephone circuits, across town or
nation, by day or by night.

Designate No. 3 on Readers Service Card

Data communications services can add
new scope and usefulness to your present
EDP system, or to one you may be planning.
Discuss it with one of our Communications
Consultants. He's a trained specialist in data
communications. Just call your Bell Telephone Business Office and ask for his services.

Designate No. 5 on Readers Service Card - -..
~

START

NO
Get a
free 1966
Milwaukee Braves
Schedule. Write:
"Take Me Off Your EDP
Mailing list" Dept.
W. H. Brady Co.
7431 W. Glendale Ave.
Milwaukee, Wis.

You should be!
Write:
"I promise to reform by looking
into this Total
Utilization bit"
fifty times.

53209

NO
Return it to
your nearby
computer store
for credit.

YES

Please tell us why. Is
it somethhlg we've
said? Write:
"Reconciliations Div."
W. H. Brady Co.
743 W. Glendale Ave.
Milwaukee, Wis.

53209

YES
Write for big, FREE, half-pound package of literature,
samples, technical data and other surprises:
W. H.

[3rn(Jill[J

CO.

743 W. Glendale Ave., Milwaukee, Wis. 53209

Est.1914
Manufacturers of Quality Pressure-Sensitive Tape Products, Identification and Labeling Systems, Self-

AD NO. 1~5

Bonding Nameplates, Automatic Machines for Dispensing Labels, Nameplates, Masks and Tape.

Designate No. 4 on Readers Sorvico Card

COMPUTERS and AUTOMATION-for October, 1965

AN OFF-BIT HISTORY OF MAGNETIC TAPE ... #8 of a series by Computape*

Did the Vikings introduce computer tape to our shores
as early as 789 A.D. ?
Dr. Jerome B. Dewdrop believes they did. According
to Dr. Dewdrop, the occasion was the landing in Narragansett Bay of a group of Norse singers bound for the
first Newport Jazz Festival. The group included, in addition to the Vikings, such long-maned attractions as Erik
and the Reds, The Four Norsemen, and one Bea Striceland, who sang"Melancholy Baby"accompanied by lyre.
As for the view that data processing equipment was
not introduced until much later, as a result c: the work of
the 17th century mathematical wizard Descartes, Dr.
Dewdrop poo-poohs it.
·Reg. T.M. Computron Inc.

Inc. 1965

"An interesting theory," scoffs Dr. Dewdrop in his
classic study entitled 'The Vikings and All That Jazz',
"but just one more case of putting Descartes before the
Norse I"
One of a series of documentaries made possible by
COMPUTRON INC., a company even more interested in
making history than fracturing it. Our Computape is so
carefully ,made that it delivers 556, 800 or 1,000 bits per
inch - with no dropout. Available with 7, 8, 9, 10, 16
channel or full-width certification to meet your systems
requirements.
Now - if Computape can write that kind of computer
tape history - shouldn't you be using it?

(+J

CDMPUTRDN INC.
MEMBER OF THE

!ID!A\~Ir GROUP

122 CALVARY STREET, WALTHAM, MASSACHUSETTS

COMPUTAPE - product of the first company to manufacture magnetic tape for computers and instrumentation, exclusively.
Designate No. 6 on Readers Service Card

COMPUTERS and AUTOMATION for October, 1965

The front cover shows a computer
being explained to a group 0/ pre-school children.
George C. Heller 0/ IBM used some pieces 0/ candy
and other small objects to teach the children
how a computer counts in the binary system.

computers and data processors:
the design, applications,
and implications 0/
information processing systems.

OCTOBER, 1965 Vol. 14, No. 10

editor and publisher
EDMUND C. BERKELEY

In This Issue
auistant editors
MOSES M. BERLIN
LINDA LADD LDVETT
NEIL D. MACDONALD

Special Issue on Real-Tilne Conzputing and Supervisory Monitor Programs
14

THE ECONOMICS OF ON-LINE SYSTEMS: SOME ASPECTS
by Walter F. Bauer

contributing editors
JOHN BENNETT
ANDREW D. BOOTH
DICK H. BRANDON
JOHN W. CARR, III
NED CHAPIN
ALSTON S. HOUSEHOLDER
PETER KUGEL

advisory committee
T. E. CHEATHAM, JR.
JAMES J. CRYAN
GEORGE E. FORSYTHE
RICHARD W. HAMMING
ALSTON ~ HOUSEHOLDER
HERBERT F. MITCHELL, JR.
VICTOR PASCHKIS

auociate publisher

by Hal B. Becker

ANN B. BAKER

Real·time applications can operate in the environment of an on-line
time-shared computer system.

In Every Issue
35

10
10
10
10

:~:
•••••••••

Elsewhere, THE PUBLISHER
815 Washington St., 617-DEcatur 2-5453
Newtonville, Mass. 02160

The Social Responsibilities of Computer People
Computers North of the Border

tbroughput

advertising representatives

San Francisco 94105, A. S. BABCOCK
605 Market St., 415-YUkon 2-3954

COMPUTING AND DATA PROCESSING NEWSLETTER

market report
9

32
33

Los Angeles 90005, WENTWORTH F. GREEN
300 S. Kenmore Ave., 213-DUnkirk 7-8135

across the editor's desk
editorial

WILLIAM J. MCMILLAN, 815 Washington st.
Newtonville, Mass. 02160, 617-DEcatur 2-5453

Chicago 60611, COLE, MASON AND DEMING
737 N. Michigan Ave., 312-SU 7-6558

A simple time·sharing system, using a master and a slave computer, and
simplified man/machine interfaces, can play an important role in edu·
cation, industry, and government.
REAL· TIME COMPUTING WHILE TIME SHARING
by Thomas N. Hastings

fulfilment manager

New York 10018, BERNARD LANE
37 West 39 St., 212-BRyant 9-7281

The widening gulf between programmers and management could eventually lead to a paralyzing work stoppage, if programmers were organized
in a labor union led by a "John l. lewis."
SUPERVISORY SYSTEMS FOR THE DARTMOUTH TIME·SHARING SYSTEM
by Thomas Kurtz and Kenneth Lochner

art director
RAY W. HASS

The development of a practical philosophy for controlling a computer
to service many users in real time
REAL-TIME PROGRAMMING IN THE SIXTIES: A STUDY IN BUSINESS ALIENATION
by Robert V. Head

PATRICK J. MCGOVERN

production manager

For the convenience and efficiency of on-line systems what increased
costs may we expect to pay and how should they be allocated?
THE EVOLUTION OF REAL-TIME EXECUTIVE ROUTINES

54
50
56

58
58
2B

Standardizing Computer Selection

capital report
readers' and editor's forum
1966 Spring Joint Computer Conference - Call for Papers
Education, as Ruthless as Evolution
Canadian Engineering
Portion of Statement Before Subcommittee No. 3 of the House Judiciary Committee (Part 2), by John F. Banzhaf, III
Coordinated Operations
Calendar of Coming Events

reference information
Computer Census
New Patents, by Raymond R. Skolnick
Books and Other Publications, by Moses M. Berlin

index of notices
Advertising Index
Classified Advertisements
Who's Who in the Computer Field

COMPUTERS AND AUTOMATION IS PUBLISHED MONTHLY AT 815 WASHINGTON ST., NEWTONVILLE, MASS. 02160, BY BERKELEY ENTERPRISES, INC. ADDITIONAL OFFICE OF PUBLICATION: 165; WASHINGTON

~~sT~~i~I~~~~;G~~DDP;;~~E~ ~~AURSF~·R SpU~;i:~:.I~~~~~;S~L~N~b~~oil:~T~SND$~5u~~C~~P~16~E~~IL$~~0~E~~:LE2Y ~~T~~P~~S~~~~~NC~ ~~~ ~UA~~I~I~~;~~~.,I;;EU~~~~~I~~E~'M~~.,5g~I~O.Y~~~6~~
CLASS POSTAGE PAID AT HOLLISTON, MASS.

POSTMASTER: PLEASE SEND ALL FORMS 3579 TO BERKELEY ENTERPRISES, INC., 815 WASHINGTON ST., NEWTONVILLE, MASS. 02160. © COPYRIGHT, 1965, BY BERKELEY ENTERPRISES, INC. CHANGE
OF ADDRESS: IF YOUR ADDRESS CHANGES, PLEASE SEND US BOTH YOUR NEW ADDRESS AND YOUR OLD ADDRESS (AS IT APPEARS ON THE MAGAZINE ADDRESS IMPRINT), AND ALLOW THREE WEEKS
FOR THE CHANGE TO BE MADE.
COMPUTERS AND AUTOMATION, FOR OCTOBER, 1965

Introducing:
A standard integrated-circuit core memory
system with "off-the-shelf" economy!
Standard relay-rack packaging.
Interlaces with either integrated
or discrete circuits • Far
less interconnections and

components lor increased
reliability - Lower power
dissipation, lower cost, and
laster delivery than any previous
coincident-current core memory system.

If you're looking for an optimized, standard memory system that can be ordered out of a catalog
without lengthy specifications, tiresome telephone
discussions, and several months of waiting-and
have been looking for the economies of integratedcircuits to show up in core memory systems, then
this is your answer!
The Fabri-Tek Series MLA5 Integrated-circuit Core
Memory System:
Memory-type-coincident-current, random access,
ferrite core
Cycle time-5 microseconds
Capacities available-128, 512, 2048 words with
from 2 to 26 bits per word in increments of 2 bits.
Relay rack packaging-All capacities are packaged
in one relay rack size (5-7/32" high by 19" wide)

Circuitry-Integrated circuits used in memory
logic, decoding, timing and interface circuits.
Standard options available-address register,
power supply, current-accepting input interface,
high-power drive output interface.
A separate portable exerciser is available to check
out Series MLA5 systems.
The Fabri-Tek Series MLA5 memory system has
been engineered to provide maximum reliability
and economy for a particular set of standard requirements. If you want faster, larger, or more
versatile memories, just ask us. There is a FabriTek core memory system to meet every memory
problem.

For complete operational, data and ordering inlormation on the
Fabri-Tek Series MLAS Integrated-circuit core memory system:
Call, wire, or write Fabri-Tek Incorporated, Amery, \Visconsin.
Phone: COngress 8-7155 (Area 715). TWX: 510-376-1710.

FABRI-TEK INCORPORATED
Designate No. 7 on Readers Service Card

COMPUTERS and AUTOMATION for October, 1965

c&a
EDITORIAL

The Social Responsibilities of Computer People

One of the most ,,,'orId-changing developments of the 20th
century is the Second Industrial Revolution: the electronic
revolution in the handling of information, processing data,
and computing.
The speed alone, of operating in reasonable ways on information, has increased a million times in 20 years.
What does this great change imply about what computer
people ought to do? What about their social responsibilities
as computer people?
Several computer people were discussing this with me a
few weeks ago. We looked up the report to the Council of
the Association for Computing Machinery, made by the Committee on the Social Responsibilities of Computer People,
which was presented to the Council in December, 1958,
almost seven years ago. Using that report as a starting point,
we arrived at a current "position paper," and here it is.

Part 1. RESPONSIBILITIES
1. Basic Responsibilities. Each human being shares in a
basic social responsibility - a duty towards society. This
duty is in part enforced legally and in part assumed ethically.
2. Special Responsibilities. Each individual involved in
computer activities has in addition to his other social responsibilities some special social responsibilities placed upon
him by his computer activites - his knowledge, position,
and experience in the computer field.
3. Ignoring. He cannot rightly ignore his responsibilities.
He should consider what they are.
4. Delegating. He cannot rightly delegate his responsibilities to any other person or organization. He needs to assume
them himself.
5. C onfiicts. Where conflicts occur between different duties, each individual should face and resolve these conflicts
for himself. He cannot rightly avoid deciding; he should
think how to choose.
6. Direction. He cannot rightly neglect to think about how
his special position as a computer person can be directed to
benefit society and not harm it. He should consider how his
special capacities can help advance socially desirable applications of computers and can help prevent socially undesirable applications.
COMPUTERS and AUTOMATION for October, 1965

7. Action. He cannot rightly do no work, spend no time,
contribute no resources, devote no effort - towards promoting the use of computers for the greater advantage of
society. He should translate his special social responsibility
in the computer field into at least some kind of positive,
continuing, significant action.

Part 2. AREAS
Among the areas where computer people can particularly
help in the use of computers to the greater advantage of
society, thus fulfilling their special social responsibilities, are
the following:
1. Education the use of computers to improve and
benefit education
2. Employment - the stimulation of employment by the
use of computers, and the mitigation of unemployment as a result of the computer
3. World Peace and World Law - the application of
computers to increase the degree of world peacefulness,
to promote the settlement of conflicts, and to develop
international law and order
4. Underdeveloped Countries the economic applications of computers in underdeveloped countries; the
transmission of skills by means of computers
5. Public Understanding - increasing the degree of understanding by the public of what computers can do
and will do; encouraging the better utilization of computers
6. Health - the use of computers in applications directed
towards increasing health and mitigating disease
You as a reader of this magazine are invited to discuss
this position paper. Do you think it makes sense? Do you
think it should be changed? How?

c.~
EDITOR

NOW PATTERNS CAN BE
REPEATED AUTOMATICALLY
WITH DIGITAL ACCURACY
CalComp's new Model 471 Incremental Curve Follower
permits you to trace any silhouette pattern and record
it digitally on magnetic tape.
Process the tracer tape by digital computer and you
can reproduce the pattern off-line on any CalComp
Magnetic Tape Plotting System.
The same CalComp plotter used to record the pattern
on tape can be used to return it to graphic form. Just
replace the pen assembly with a Model 471 photocell
tracer head to trace and record the pattern, then
restore the pen assembly to draw the pattern automatically and accurately-in any quantity and any scale

MODEL 471
INCREMENTAL
CURVE FOLLOWER
• Automatic tracing and digital recording of graphic data
• IBM 729 tape format
• Compatible with both character and word oriented computers
• Resolution

.01 inch, lineal speed up to 45 inches-per-minute

Write "Marketing" for additional features and specifications

Designate No. 8 on Readers Service Card

COMPUTERS and AUTOMATION for October, 1965

MARKET
REPORT
The report, called the Census of Computers
in Canada, is a supplementary issue of the Quarterly
Bulletin of the Computer Society of Canada, issued June
30, 1965. Among the information included in the report
is:

COMPUTERS NORTH OF THE BORDER
The Computer Society of Canada issued recently

its second annual census of computers installed or on order in their country. The report provides some interesting statistics on the use of computers by our northern
neighbor.

(1) A table showing the number of computers by
prime shift monthly rental, subdivided by
industry (reproduced below);
(2) A listing of computers by user, subdivided by
computer model and location;
(3) A listing of computers by province and city,
subdivided by user and computer model;
(4) An alphabetical listing of the names and addresses of computer users in Canada; and
(5) A listing of the numbers of computers by their
manufacturer, subdivided by province.

One striking feature of the new census is that in
the fifteen months since the publication of the previous
census the number of computers reported as being installed in Canada increased by over 50%, from 538 reported on March 31, 1964, to 820 reported on June 30,
1965. Whether this increase is due to a booming market for computers in Canada or to more thorough coverage of the total installation population by contributing
members of the installation survey team of the Computer
Society of Canada is not clear.

A copy of the Census of Computers in Canada can
be obtained for $2. 00 each from: The Book Department,
University of Toronto Press, University of Toronto,
Toronto 5, Ontario, Canada.

The quantity of computers on order (reported as
69 Systems) is artificially low due to the fact that many
organizations in Canada did not wish to report their
plans for new computers for publication in the Computer
Society of Canada report.

COMPUTERS INSTALLED (OR ON ORDER) IN CANADA AS OF JUNE 30, 1965
DISTRIBUTION BY INDUSTRY BY COMPUTER SIZE
(IN TERMS OF PRIME SHIFT RENT PER MONTH)

INSTALLED
MANUF ACTURING
DISTRIBUTION
FINANCE (BANKS, TRUST COS.
INSURANCE)
TRANSPORT & COMMUNICATION
UTILITIES
PETROLEUM
SERVICE BUREAU
INSTITUTIONS (UNIVERSITIES,
SCHOOLS, HOSPITALS)
GOVERNMENTS
OTHERS
TOTAL INSTALLED
TOTAL ON ORDER
GRAND TOTAL

COMPUTERS and AUTOMA nON for October, 1965

UP TO
$1999

$2000
to
$4999

72
9
15

78
18
24

7
1
7
8
34

$5000
to
$9999

$10,000
to
$19,999

$20,000
to
$49, 999

34
9
20

50
8
30

27
18
17
36
32

12
5
5
4
7

2
3
3
5
7

7
20
13
6

22
13

21
29

15
5

75
58

188

300

116

168

820

193

321

141

184

over
$50,000

TOTAL
241
44
100

63
34
52
66
87

69
3

889

c&a
READERS' & EDITOR'S FORUM

1966 SPRING JOINT COMPUTER CONFERENCE
- CALL FOR PAPERS
The 1966 Spring Joint Computer Conference of the American Federation of Information Processing Societies will be
held at the new Boston War Memorial Auditorium, Boston,
Mass., April 26 to 28, 1966. You are invited to help create
an interesting and informative technical program. Papers from
all corners of the information processing field will be welcome. Sessions covering computer systems, hardware, software, and applications are planned. Papers describing original research, development, engineering design, software design, system selection and installation problems, state-ofthe-art surveys, etc., are all appropriate. Every attempt will
be made to achieve a balanced program.
Your contribution is cordially invited. If you plan to send
a paper please fill out the attached card and return it immediately. Returning the card does not imply a commitment;
however, it will be helpful in general planning. The deadline
for papers is November 1, 1965. Send five complete copies
together with a 150-word abstract to J. L. Mitchell, Chairman, Program Committee, 1966 SJCC, Post Office Box 460,
Lexington, Massachusetts, 02173.

EDUCATION, AS RUTHLESS AS EVOLUTION
Mrs. Helen Solem
Hillsboro, Oregon 97123

In regard to Professor Galbraith's article on unemployment
in your August issue: Professor Folkert Wilken in West Germany sees that more and better education is required, but
he also sees that many people cannot or will not measure up
to the new demands; and so he asks how can the wealth
produced by machines be equitably distributed?
Since in all mankind's history there never has been an
equitable distribution of any sort of wealth be it money,
brains or health, it seems highly unlikely that things will
change now.
The day is not far off when a great many people will have
much more leisure time due either to direct unemployment
or just shorter work weeks. It was reported recently in "The
Wall Street Journal" that big steel doesn't care that unions
are demanding the biggest share of profits ever: on the
drawing boards are plans to automate as never before.
Education is undoubtedly the ultimate solution to the social
problems automating creates. However, it seems to me that
it will be as ruthless as evolution.

CANADIAN ENGINEERING
MANPOWER STUDY
Andrew C. Gross, P.E.
Centre for Community Studies
Univ. of Saskatchewan
Saskatoon, Sask.

Currently I am working on a research project which will
deal with engineering manpower in Canada. This study will

focus especially on graduate Canadian electrical engineers,
whether they reside in Canad

PREPROCESSOR FOR
CONVERTING DECISION TABLE
LANGUAGE

Decision tables are being
used by more and more people for
problem specification, system analysis, and programming. To encourage increased use of decision
tables in business data processing, a preprocessor has been built
to convert a decision-table language -- DETAB/65 -- into COBOL.
The preprocessor was developed
by Working Group 2 on Decision
Tables of the ~ecial Interest
~roup on frogramming Languages
(SIGPLAN) of the Los Angeles Chapter of the Association for Computing Machiners.
The preprocessor is written
in required COBOL'61. It converts
limited-entry decision tables, incorporated by the user into his
COBOL program, into required COBOL
'61. The preprocessor was designed
to be used with any computer that

COMPUTERS and AUTOMATION for October, 1965

has a COBOL'61 compiler. So far,
it has been successfully compiled
and executed on seven computers
(two manufacturers). .
(For more information, designate
#50 on the Readers Service Card.)

Data TransmiHers
and AID Converters

HIGH SPEED DATA SET MODIFIED
FOR UNATTENDED TRANSMISSION

Bell System Data-Phone service
now enables business machines transmitting at speeds up to 2,000 bits
per second (about 2,700 words per
minute) to converse with one another without any human intermediary. Operating in conjunction
with Bell System 801-type Automatic
Calling Units, the 201A Data-Phone
data set now is compatible with
computer-to-computer transmission
as well as with machines that transmit punched paper tape, magnetic
tape and card media.
With this new feature of the
201A Data-Phone data set, companies
with several branch offices will be
able to poll these offices automatically over the regular telephone switched network for sales,
production and other information.
By making such polls in off-hours,
companies will be able to take advantage of lower evening telephone
rates and also reduce the transmission traffic which their telephone service must handle during
regular hours.
(For more information, designate
#51 on the Readers Service Card.)

Input-Output

HIGH SPEED SERIAL
ENTRY PRINTER

The Data-Master Division of
The Bristol Company, Waterbury,
Conn., has announced the ~evelop
ment of a new high-speed, alphanumeric data printer. This printer, the Model 750 combines the
speed and reliability of a line
printer with the ease of operation,
flexibility and low cost of a serial entry printer. Uses include
on- or off-line operation with tab
card, punched tape, and magnetic
tape devices.

Newsletter
The Data-Master® Model 750
prints data at the same rate at
which data is received up to a
maximum of 75 characters per second. It will accommodate roll
paper 'as wide as 50 inches and all
standard sizes of fan-fold paper.
Versatility of this printer is indicated by the fact that the input
code and print-out characters can
be selected by the user to meet
his specific needs.
(For more information, designate
~52 on the Readers Service Card.)

ELECTRONIC TYPING ELEMENT
AUTOMATION

The Electronic Typing Element
developed by Camwil Inc., Los Angeles, Calif., for use with IBM
Selectric typewriter mechanisms
enables production of schematics
by simple keyboard operation.

In Everett, Wash., automatic
measuring devices "talk" to government flood-control specialists over
conventional telephone lines to assure that residents are evacuated
promptly from flood-threatened
areas.
The devices, installed by the
state of Washington, measure the
depth of the many normally placid
rivers that feed into Puget Sound.
When melting snow from the Cascade
Mountains creates a flood threat,
this information is transmitted in
code to the flood-control specialists when they telephone the individual measuring stations. West
Coast Telephone Company, a subsidiary of GT&E, provides telephone
relays that link such floOd-warning
installations on the Snohomish River
nearby to conventional telephone
faci Ii ties.

MICRO PUNCH 461 PORTABLE KEY PUNCH DEVICE

The Micro Punch 461 weighs
only eight pounds and punches fully interpreted numeric data into
standard tabulating cards.
This device, developed by the
Paul G. Wagner Co., Los Angeles,
Calif., uses standard 80-column
cards for source input. Data is
set up on a slide-type keyboard
which displays selected numbers
in visible windows for full verification. A single stroke of the
platen punches and interprets
eight columns of data. Application-tailored program bars make
it possible to cover full-card
capacity in a series of sequenced
operatio ns.
(For more information, designate
~53 on the Readers Service Card.)

Type this

The measuring device, known as
Stevens Telemark, is housed in a
specially-designed well attached to
a bridge at each of the Snohomish
River locations. The water in each
well reflects the depth of the river at that particular point, and a
float mechanism positions recording
drums within the Telemark equipment
to indicate the water level.

Components

with this
KYREAD TAPE DEVELOPER

KYREAdID, a new tool for the
computer industry, is a high precision visual tape developer. It
is available from Kyros Corporation,
Madison, Wisc.
Accurate to better than 10- 3
inches, Kyread can be used to determine recorder head alignment,
track placement, dropouts, and
interblock spacing. The product
is easy to remove after use and
yields zero read back error. It is
non-flammable and non-toxic.
Kyread is now available from
stock in bulk, eyedropper bottles,
dip jars, and aerosol bottles (both
metered and continuous spray).
(For more information, designate
#53 on the Readers Service Card.)

AUTOMATIC MEASURING DEVICES
AID FLOOD-CONTROL SPECIALISTS

The special characters on the
electronic element will create all
components needed for electrical
and electronic diagrams and schematics. The use of an electronic
element with a tape or card punch
machine will provide a library of
pre-punched standard schematics
ready for incorporation into new
designs, reports and articles.
The library also permits rapid
construction of modified diagrams.
The electronic element assures neatness and legibility in
an exacting medium. Accuracy and
uniformity are achieved through
standardization of symbols and
letters.
(For more inf'ormation, designate
#55 on the Readers Service Card.)

When the unlisted telephone
number of the Telemark station is
called, a motor is energized and
sweeps a contact arm across the
;face of each recording drum. Thi s
action produces the code signals,
which are directed into the telephone tranmitter by a nearby "buzzer". The buzzer tone transmits a
series of dots and dashes at sixsecond intervals, with a dot representing "one" and a dash "zero".
A government caller hearing two
dots, one dash, and three dots
would be provided with a waterlevel reading of 20.3 feet.
Similar devices are used in
rivers throughout Washington by
the weather bureau, water conservation district, Army engineers, and
other state and federal agencies.
It is anticipated that supplemental equipment will be added in the
future to transmit the data in a
form suitable for direct input
into computer systems.

COMPUTERS and AUTOMATION for October, 1965

Newsletter

MEETING NEWS

BUSINESS NEWS

FOUR DAY PROGRAM TO EXPLORE
COMPUTER REVOLUTION ON LAW

AMPEX ACHIEVES
RECORD ORDER LEVEL

The impact of the computer
revolution on law and the administra~ion of justice will be explored
durIng a four-day institute, Nov.
30 - Dec. 3, sponsored by American
University's Center for Technology
and Administration, Washington D.C.
It will be held at Washington's
Twin Bridges Marriott Motor Hotel.

Ampex Corporation sales for
the first quarter of fiscal 1966
'
ended July 31, 1965, totaled
$35,273,000, up from $32 457 000
in the first quarter of fisc~l
1965. Net earnings after taxes
were $1,408,000 compared with
$1,290,000 for the corresponding
period last year.

The four-day session will cover the storage and automatic retrieval of statuatory and case law;
recently developed aids to decision
making; computer uses in federal
judicial and regulatory administration, and applications at the state
and local levels.

William E. Roberts, president
and chief executive officer, said
both sales and earnings for the
first quarter were as planned.
"Orders received in the quarter
~ere the highest in any quarter
In t~e company's history, and we
contInue to expect gains in both
sales and earnings during the rest
of fiscal year 1966," he said.

Additional information can be
obtained by writing Paul W. Howerton, director of the Center for
Technology and Administration The
American University 2000 G S~ NW
Washington, D.C.'
.,

RECORD NUMBER OF PAPERS
SUBMITTED FOR FJCC

An unprecedented total of more
than 300 technical paper drafts are
being reviewed for the 1965 Fall
Joint Computer Conference (FJCC) it
was disclosed by S. Nissim and i B
Steel, Jr., co-chairmen of the t~ch~
nical program committee.
,Drafts of complete papers were
by authors from every sectIon of the United States and several foreign countries. They said
that topics included aspects of information sciences ranging from exotic programming theory to data
system management and practical
~pplications.
A total of approxImately 20 papers will be selected
for presentation at the conference
which will be held from November '
30 through December 2 at the Convention Center in Las Vegas, Nev.
s~bmlt ted

Among the new products introduced by Ampex in the quarter were
the HVR home videotape recorder
new home audio recorders, speak~rs,
accessories and prerecorded tapes.
In addition, the company placed on
the market a new family of instrumentation tape recorders, a highquality, low-cost computer core
memory, a core memory stack for
s~all scale data systems, an offlIne card-to-tape conversion system, two audio teaching devices
and a solid state professional '
audio recorder/reproducer for
radio station and recording company use.

CONTROL DATA'S SALES
RISE 22%

Sales, rental and service income of Control Data Corporation
and its subsidiaries amounted to
$160 million for the year ended
June 30, 1965, as compared with
$131 million in the same period
last year. Net earnings after
provision for income taxes were
$7,912,961 as compared with
$6,018,121 last year.
The figures for the fiscal
year 1964 have been adjusted retroactively to reflect acquisitions
subsequent to that fiscal year recorded as poolings of interests
and for the 3 for 2 stock split in
September 1964. Amounts shown for
~he fiscal year ended June 30, 1965
Include the effect of two basic
accounting changes:

COMPUTERS and AUTOMATION for October, 1965

One change, effective January
1, 1965, was a switch from an accelerated to a straight line depreciation of leased computer systems
the term in each case being
three years. Without this change
earnings for fiscal 1965 would have
been reduced by $0.16 per share
The second change was made to
give recognition to the fact that
an increasingly substantial portion
of th~ Company's development, programmIng and marketing expenses are
spent in obtaining orders for leases
the income from which will be spread
over several years. Accordingly,
the Company now defers that portion
of such expenses directly related
to lease contracts and amortizes
them over the periods during which
the rental income is received but
not to exceed three years. Without
this revision the earnings for fiscal 1965 would have been reduced by
$0.30 per share.
The Company's incoming orders
fiscal year 1965 are reported
Increased approximately 40% and
the backlog as of June 30 are reported increased approximately 60%
over the previous year, again with
a much larger portion in leases
Th~s means, a company spokesman'
saId, that this improved performance for the past year would not
have been reflected in the profit
and loss statement without the
recognition that certain current
development, application and support costs apply to the Company's
firm lease contracts and should
therefore be charged against future
lease income.
~or

CALCOMP REPORTS
SALES, EARNINGS

California Computer Products
Inc., Anaheim, Calif., have an- '
nounced net income of $446,751 on
sales of $5,089,000 for the fiscal
year ended June 30, 1965. This
compares with earnings of $459,391
o~ sales of $5,157,000 for the preVIOUS year.
Research and development expenditures amounted to more than
double those of last year.
Lester L. Kilpatrick president
said that the company's P~Oduct lin;
was upgraded and a variety of new
p~oducts were added "to keep pace
wIt\the exp~nding computer industry.
ProprIetary product sales
rose 23% to a record 84% of total
sales, while non-proprietary government sales decreased to 16% from
46% the previous year.
1\7

What can NCR Total System do for You?
Gives you a COMPLETE chain of control over sales,
production, inventory and distribution!
The same thing it's doing for JOHNSON'S WAX!

It starts very simply.With a sale.
A Johnson Wax product is sold
... anywhere.

When re-orders are
issued to Johnson
salesmen in the field,
they are immediately entered on an
NCR 160 Adding
Machine equipped
with a paper tape
recorder.

These orders are then transmitted to Johnson headquarters in Racine, Wisconsin,
via AT&T lines. In Racine, the
tapes are removed from the
Teleprinters and forwarded to
the NCR computer.

Incoming orders and inquiries
are processed by early the next
morning. Changes in demand
(and, naturally, inventory) can
be decided by this system within
24-48 hours. Thus revisions in
production and distribution can
be implemented, immediately.
This uniquely flexible NCRTotal
System gives Johnson Wax a
completely closed loop of
control-from the sale of the
product-all the way through to
the next sale ••• ad infinitum.

COMPUTERS and AUTOMATION for October, 1965

·Co

(Among other benefits: they've reduced
their inventory by about 7-10 days supply.)
Quite an investment.

In addition, the NCR 315 computer
is used in all phases of Johnson's
marketing operation: special
marketing campaigns, marketing
forecasts, production control,
manpower assignment, ordering
of raw materials, and many others,

That's why Johnson Wax knows .. .
when NCR says Total Systems .. .
they mean total! To learn how
Total Systems can work for you,
see your local NCR man.
Or write to NCR, Dayton, Ohio.

•

CR
THE NATIONAL CASH REGISTER

co.

Designate No. 15 on Readers Service Card

COMPUTERS and AUTOMATION for October, 1965

'DAYTON. OHIO 45409

MONTHLY COMPUTER CENSUS
The number of electronic computers installed or in production at anyone time has been increasing at a bewildering pace
in the past several years. New vendors have come into the computer market, and familiar"machines have gone out of production.
Some new machines have been received with open arms by users __
others have been given the cold shoulder.
To aid our readers in keeping up with this mushrooming activity, the editors of COMPUTERS AND AUTOMATION present this
monthly report on the number of general purpose electronic computers of American-based companies which are installed or on
order as of the preceding month. These figures included installations and orders outside the United States. We update this
computer census monthly, so that it well serve as a "box-score"

of progress for readers interested in following the growth of
the American computer industry, and of the computing power it
builds.
In general, manufacturers in the computer field do not
officially release installation and on order figures. The figures in this census are developed through a continuing market
survey conducted by associates of our magazine. This market
research program develops a documented data file which now covers over 85% of the computer installations in the United States.
A similar program is conducted for overseas installations.
Any additions, or corrections, from informed readers will
be welcomed.

AS OF SEPTEMBER 10, 1965
NAME OF
MANUFACTURER
Addressograph-Multigraph Corporation
Advanced Scientific Instruments

Autonetics
Bunker-Ramo Corp.

Burroughs

Clar
Computer Control Co.

Control Data Corporation

NAME OF
COMPUTER
EDP 900 system
ASI 210
ASI 2100
ASI 6020
ASI 6040
ASI 6050
ASI 6070
ASI 6080
RECOMP II
RECOMP III
BR-130
BR-133
BR-230
BR-300
BR-330
BR-340
BR-530
205
220
E101-103
B100
B250
8260
8270
8280
8300
85000 85500
DE-60/DE-60M
DDP-19
DDP-24
DDP-116
DDP-124
DDP-224
G-15
G-20
160* /160A/16OG
924/924A
1604/1604A
3100
3200
3300
3400
3600
3800
6400

Digital Equipment Corp.

El-tronics, Inc.
Electronic Associates, Inc.
Friden
General Electric

General Precision
Honeywell Electronic Data Processing

6600
6800
PDP-l
PDP-4
PDP-5
PDP-6
PDP-7
PDP-8
ALWAC IIIE
8400
6010
115
205
210
215
225
235
415
425
435
625
635
LGP-21
LGP-30
RPC-4000
H-120
H-200
H-400
H-800
H-1200

SOLID
STATE?
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
N
N
N

Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
N

Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
N
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y

semi
Y
Y
Y
Y
Y
Y

AVERAGE MONTHLY
RENTALS

DATE OF FIRST
INSTALLATION

$7500
$2850
$3000
$2200
$2800
$3000
$3500
$4000
$2495
$1495
$2000
$2400
$2680
$3000
$4000
$7000
$6000
$4600
$14,000
$875
$2800
$4200
$3750
$7000
$6500
$8400
20 000
525
$2800
$2500
$900
$2050
$3300
$1000
$15,500
$1750/$3400/$12,000
$11,000
$38,000
$7350
$12,000
$15,000
$25,000
$58,000
$60,000
$40,000
$110,000
$140,000
$3400
$1700
$900
$10,000
$1300
$525
$1820
$7000
600
$1375
$2900
$16,000
$6000
$8000
$10,900
$7300
$9600
$14,000
$41,000
$45,000
$725
$1300
$1875
$2600
$5700
$8500
$22,000
$6500

2/61
4/62
12/63
4/65
7/65
10/65
10/65
1/66
II/58
6/61
10/61
5/65
8/63
3/59
12/60
12/63
8/61
1/54
10/58
1/56
8/64
11/61
11/62
7/62
7/62
7/65
3/63
7 60
6 61
5/63
4/65
2/65
3/65
7/55
4/61
5/60;7/61;3/64
8/61
1/60
12/64
5/64
9/65
11/64
6/63
11/65
1/66
8/64
4/67
11/60
8/62
9/63
10/64
11/64
4/65
2/54
6/65
6 63
12 65
6/64
7/59
9/63
4/61
4/64
5/64
6/64
10/64
12/64

NUMBER OF
INSTALLATIONS

NUMBER OF
UNFILLED ORDERS

11
23

1
2

4
1

52
13
160
8
14
40
35
19
15
55

X
X

o
o
o

162
70
"105
215
150
88

7
0
6
7
1
X
X

1
X
X
X
X
33

40
330

5
55
20
22
50
10
3

22
X

328
26
428
28
60
29
80

14
43

o
o

60
55
113
11
24
50
23
2
200

31
55

50
142
54
65
36
12
6

2
X

3
1

X
36
32
35
20
10
23
7

10
3
2

2
3
10
50
202
X

6
188
100
14
X
4

12/64

2
5
72
52
20
24
28

12/62
9/56
1/61
12/65
3/64
12/61
12/60
2/66

110
340
70

X
X
X

595
124
85

170
280
6
6

COMPUTERS and AUTOMATION for October, 19<1)

NAME OF
MANUFACTURER
Honeywell (cont'd)

IBM
"

,_t'<

ITT

Monroe Calculating Machine Co.
National Cash Register Co,

Phi lco

Radio Corporation of America

Ra ytheon
Scientific Da ta Sys terns Inc,

Systems Engineering Labs
UNIVAC

NAME OF
COMPUTER
1J-1400
H-1800
H-2200
H-4200
H-8200
DATAmatic 1000
305
360/20
360/30
360/40
360/44
360/50
360/60
360/62
360/65
360/67
360/75
650
1130
1401
1401-G
1410
1440
1460
1620 I, II
1800
701
7010
702
7030
704
7040
7044
705
7070, 2, 4
7080
709
7090
7094
7094 II
7300 ADX
Monrobot IX
Monrobot XI
NCR - 304
NCR - 310
NCR - 315
NCR - 315-RMC
NCR - 390
NCR - 500
1000
2000-210,211
2000-212
2000-213
Bizmac
RCA 301
RCA 3301
RCA 501
RCA 601
Spectra 70/15
Spectra 70/25
Spectra 70/35
Spectra 70/45
Spectra 70/55
250
440
520
SDS-92
SDS-91O
SDS-920
SDS-925
SDS-930
SDS-9300
SEL-81O
SEL-840
I & II
III
File Computers
Solid-State 80 I,
II, 90 1, II &
Step
418
490 Series
1004
1050
1100 Series (except 1107)
1107
1108
LARC

SOLID
STATE?
Y
Y
Y
Y
Y
N
N
Y
Y

AVERAG E MONTHLY
RENTALS

DATE OF FIRST
INSTALLATION

N
Y
N

$14,000
30,000
11,000
16,800
35,000
40,000
$3600
$1800
$7500
$16,000
$12,000
$30,000
$48,000
$55,000
$49,000
$49,000
$78,000
$4800
$850
$4500
$2000
$14,200
$3500
$9000
$2500
$3700
$5000
$22,600
$6900
$160,000
$32,000
$18,000
$35,200
$30,000
$27,000
$55,000
$40,000
$63,500
$72,500
$78,500
$18,000
Sold only - $5800
$700
$14,000
$2000
$8500
$12,000
$1850
$1500
$7010
$40,000
$52,000
$68,000
$100,000
$600:)
$11,500
$14,000
$35,000
$2600
$5000
$7000
$9000
$14,000
$1200
$3500
$3200
$900
$2000
$2700
$2500
$4000
$7000
$750
$4000
$25,000
$20,000
$15",000

Y
Y
Y
Y
Y

$8000
$11 ,000
$26,000
$1900
$8000

8/58
6/63
12/61
2/63
9/63

N
Y
Y
Y

$35,000
$45,000
$50,000

12/50
10/62
9/65
5/60
TOTALS

Y
Y
Y
Y
Y
y

Y
N
Y
Y
Y
Y
Y
Y
Y
y

N
Y
N
Y
N
Y
Y
N
Y
Y
N
Y
Y
Y
Y
N
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
N
Y
Y
Y
Y
Y
Y
Y
y

Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
y

~135,000

1/64
1/64
10/65
2/66
3/67
12/57
12/57
12/65
5/65
4/65
9/66
8/65
9/65
9/65
1/66
9/66
11/65
11/54
11/65
9/60
5/64
11/61
4/63
10/63
9/60
12/65
4/53
10/63
2/55
5/61
12/55
6/63
·6/63
11/55
3/60
8/61
8/58
11/59
9/62
4/64
9/61
3/58
12/60
1/60
5/61
5/62
9/65
5/61
9/65
6/63
10/58
1/63
9/66
-/56
2/61
7/64
6/59
11/62
11/65
11/65
4/66
3/66
5/66
12/60
3/64
10/65
4/65
8/62
9/62
12/64
6/64
11/64
9/65
10/65
3/51 & 11/57
8/62
8/56

NUMBER OF
INSTALLATIONS

NmmER OF
UNFILLED OHIlEHS

12
12
0
0
0
4
180
0
120
130
0
3
0
0
0
0
0
265
0
7000
1050
755
2200
2000
1740
0
1
145
8
7
42
110
60
61
350
75
11
52
136
81
9
150
570
26
46
350
0
990
0
20
19
9
0
3
620
36
99
5
0
0
0
0
0
170
12
0
18
142
92
7
55
12
1
0
29
87
19

2
8
44
6
1
X
X
2800
2400
650
45
310
14
5
100
8
90
X
1150
260
100
45
400
300
25
90
X
55
X
X
X
15
12
X
8
X
X
2
12
30
6
X
120
X
1
55
50
45
220
0
0
0
1
X
8
22
2
X
66
60
5
65
14
10
5
10
42
20
14
25
27
8
8
3
X
4
X

305
33
60
3000
200

X
15
34
220
145

12
28
1
2
28,960

X
1
15
X
12,100

= no longer in production.
To avoid double counting, note that the Control Data 160 serves as the central processor of the NCR 310.
Also, many of the orders for the IBM 7044, 7074, and 7094 I and II's are not for new machines but for
conversions from existing 7040, 7070 and 7090 computers respectively.

COMPUTERS and AUTOMATION for October, 1965

save your
punched cards •••
II III 111I I I I
1
III
II III II III
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13 3 33 $ 3 3 3 3 3 3 3 313 3 3 n 3 3 33ll 313 313 3 31n 33 3 33 :n :. 13 3 33 3 3,3 3 3 3 133 13 3 3 3 3 3 33 U 3 3

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55555555551555555515555551555555551155555555555555555555555555555555555555555555
~616IGGSGSGSSGIISGS6G6SIG65ISI$S616&618G&G6SG616ISJS6GIGSGSIGSIG61GSIGGIGGIG61GI

17171717711711171117177117111711J11177117717171111717777777117717117171117717111
a 8 8 3 a 3 S Bela S Ba B3 e a S 8 8 a a a a 8 e a S 8 S g S S8 8 8 sa 8 B8 8 B8 88 a 8 3 a 8 8 a 8 3 a a 8 a 88 at 93 a 3 3 8 8 a a 3 al3 n &

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aDMa.Q.nW •• D.a"n.n •• VUM • • D • • • ~aa« •• a.uMMDaMH.RHH.~DDMW.pa •• nUDM • • nn ••

they may become
collectors' items!

COMPUTERS and AUTOMATION for October, 1965

CONTROL DATA 210 Visual Display Unit . . . lets you query the
central computer remotely; read out answers instantly on video
screen. Up to 63 such units can share a single computer.

CONTROL DATA Remote Calculator . . . ties mathematicians, via
remote, into any CONTROL DATA Series·6000 computer. So. many
individuals can simultaneously share these powerful systems.

CONTROL DATA 915 Optical Reader •.. "sees" your printed and
typewritten material. Inputs data directly. without need for con·
verting it to punched cards. tape, or other intermediate formats.

CONTROL DATA Digigraphics . . . a light pen and keyboard, far
more versatile than ever before. Lets you sketch your ideas and
type in data, while computer generates precise details.

CONTROL DATA today provides these new ways
to keep punched cards and punched tape from
coming between you and your computer
Could it be that the mighty data card will go the way of
the abacus? Take a look at what's happening! The new
ways even non·computer people now can talk directly
to a Control Data computer - in ordinary language.
And numbers of people can time·share the same central
computer simultaneously.
Big computer systems can most efficiently offer this
instantaneous, direct accessibility - and this plain·talk
way of getting at a computer, at lower cost per task than
ever before. Bigness lets you tie divisions, departments,

and projects together in real time as things happen,
without the delay of waiting to get on the computer. The
punched card may always have a role in things. But it
will be overshadowed by these new ways of working
with computers.
Experience shows it pays to plan with a total system
in mind . . . even when your primary objectives seem
more limited. To learn exactly how bigness figures in
your own future, talk to your Control Data Representative;
or write for further information, to Dept. P·95.

The biggest computers for the biggest installations come from

CONTROL DATA
CORPORATION
Designato No. 16 on Readers Service Card

COMPUTERS and AUTOMATION for October, 1965

8100 34TH AVE. 5., MPLS., MINN. 55440

CALENDAR OF COMING EVENTS
Oct. 10-15, 1965: 1965 Congress of the International Federation of Documentation (FID), Sheraton Park Hotel, Washington, D. C.; contact Secretariat, 1965 FID Congress. 9650
Wisconsin Ave., Washingon, D. C. 20014
Oct. 13·19. 1965: INTERKAMA (International Congress and
Exhibition of Measuring Instruments and Automation) ; contact Nordwestdeutsche Ausstellungs- und Messe-Gesellschaft
mbH - NOWEA -, Dusseldorf, MessegeHinde
Oct. 14-15, 1965: Association of Data Processing Service Organizations, Inc. Washington Conference, Statler Hilton,
Washington, D. C.; contact ADAPSO, 947 Old York Rd.,
Abington, Pa.
Oct. 19-22, 1965: Symposium on Economics of Automatic Data
Processing, Rome, Italy; contact International Computation
Centre, Viale della Civilta del Lavoro, 23, P.O.B. 10053.
Rome, Italy
Oct. 20-22, 1965: Fall Conference of the H-800 Users Association, Jung Hotel, New Orleans, La.; contact John D. Kearney, Conference Chairman, NASA Michoud Operations,
P. O. Box 29300, New Orleans, La. 70129
Oct. 20-22, 1965: Fall Meeting of CUBE (Cooperating Users
of Burroughs Equipment), Sahara Hotel, Las Vegas, Nev.;
contact William S. Macomber, CUBE Secretary, Boston Insurance Group, 87 Kilby St., Boston, Mass.
Oct. 21-23, 1965: IF AC/IFIP Symposium on Microminiaturization in Automatic Control Equipment and in Digital Computers, Munich, Germany; contact Verein Deutscher Ingenieure - Abt 0, P.O. Box 10 250, Dusseldo-rf, Germany
Oct. 25-27, 1965: National Electronics Conference, McCormick Place, Chicago, III.; contact NEC Office. 228 La Salle
St., N., Chicago, III. 60601

Oct. 26-28, 1965: co-op Users Group, Maison Internationale Des Chemins de Fer. 14 Rue Gene Rey, Paris,
France; contact Gordon V. Wise, Mgr., Public Relations,
Control Data Corp., 8100 34th Ave., So., Minneapolis,
Minn. 55440
Oct. 27-29, 1965: Second National Conference on EDP Systems for State and Local Governments, N. Y. University
Graduate School of Public Administration, New York. N. Y.;
contact Prof. Herman G. Berkman. Graduate School of Public
Administration, N. Y. Univ., 4 Washington Sq., No., New
York, N. Y. 10003
Oct. 29. 1965: 5th Annual Symposium of the San Francisco
Bay Area Chapter of the ACM, Jack Tar Hotel, San Francisco, Calif.; contact Harry E. Brandon, Control Data Corp.,
3260 Hillview Ave., Palo Alto, Calif.
Nov. 1-3, 1965: International Systems Meeting, Palmer House,
Chicago, III.; contact Richard L. Irwin, Exec. Dir., Systems
and Procedures Association, 7890 Brookside Dr., Cleveland
38, Ohio
Nov. 2-5, 1965: GUIDE International (User Organization for
Large Scale IBM EDP Machines) Meeting, Jung Hotel,
New Orleans, La.; contact Lois E. Mecham, Secretary,
GUIDE International, c/o United Servic~s Automobile Assoc.,
4119 Broadway, San Antonio, Tex. 78215
Nov. 3-5, 1965: Data Processing Management Association Fall
International Conference, Adolphus Hotel, Dallas, Tex.; contact R. Calvin Elliott, Exec. Dir., DPMA, 524 Busse Highway,
Park Ridge, III. 60068
Nov. 29, 1965: Annual Fall Symposium of the Digital Equipment Computer Users Society (DECUS) Stanford University,
Tresidder Union Hall, Stanford, Calif.; contact Ken Gold,
Digital Equipment Corp., Maynard, Mass.

Nov. 30-Dec. 2, 1965: Fall Joint Computer Conference. Convention Center, Las Vegas, Ne\·.: contact W. D. Orr. S.F.
Assoc., Thousand Oaks, Calif.

Nov. 30-Dec. 3. 1965: Four-Day Institute on the Impact
of the Computer Revolution on Law and the Administration of Justice. sponsored by American University's
Center for Technology and Administration, Twin
Bridges Marriott Motor Hotel. 'Vashington, D. C.; contact Paul W. Howerton. Director, Center for Technology
and Administration. The American University, 2000 G
St.. N. W., Washington. D. C.
Dec. 3-4, 1965: 6th Tnternational SDS Users Group Meeting,
Dunes Hotel and Country Club, Las Vegas, Nev.: contact
Dr. Robert]. Stewart, Jr., Cyclone Computer Center. Iowa
State University, Cedar Falls, Iowa
Jan. 31-Feb. 4, 1966: International Symposium on Information
Theory, UCLA, Los Angeles, Calif.; contact A. V. Balakrishnan, Dept. of Engrg., Univ. of Calif., Los Angeles, Calif.
90024
Mar. 21-24, 1966: IEEE International Convention, Coliseum &
New York Hilton Hotel, New York, N. Y.: contact J. M.
Kinn, IEEE, 345 E. 47 St., New York, N. Y. 10017
Mar. 24-26, 1966: 4th Annual Symposium on Biomathematics
and Computer Science in the Life Sciences, Shamrock Hilton
Hotel, Houston, Tex.; contact Office of the Dean, Div. of
Continuing Education, Univ. of Texas Graduate School of
Biomedical Sciences at Houston, 102 Jesse Jones Library
Bldg., Tex. Medical Center, Houston, Tex. 77025
May 3-5, 1966: British Joint Computer Conference, Congress
Theatre, Eastbourne, Sussex, England; contact Public Relations Officer, Institution of Electrical Engineers, Savoy Place,
London, W.C.2, England
May 16-20, 1966: Australian Computer Conference, Canberra.
A.C.T., Australia; contact S. Burton, Honorary Secretary,
P.O. Box 364, Manuka, A.C.T., Australia

May 18-20, 1966: 29th Na'tional Meeting of the Operations
Research Society of America. Los Angeles, Calif.; contact Dr. John E. Walsh, System Development Corporation, 2500 Colorado Ave., Santa Monica, Calif. 90406
May 30-June 1, 1966: National Conference of the Computing
and Data Processing Society of Canada, Banff Springs Hotel,
Banff, Alberta, Canada; contact Mr. K. R. Marble, Mgr.,
Systems and Computer Services Dept., Western Region, Imperial Oil Ltd., Calgary
June 20-26, 1966: 3rd Congress of the International Federation
of Automatic Control, London, England; contact American
Automatic Control Council, c/o Dr. Gerald Weiss, Electrical
Engineering Dept., Brooklyn Polytechnic Institute, 333 Jay
St., Brooklyn 1, N. Y., or IFAC Secretary, Postfach 10250,
Dusseldorf, Germany
June 21-24,1966: Data Processing Management Association
June International Conference, Hilton Hotel, Chicago, Ill.;
contact R. Calvin Elliott, Exec. Dir., DPMA, 524 Busse
Highway, Park Ridge, Ill. 60068
Oct. 25-28, 1966: Data Processing Management Association Fall
International Conference, Los Angeles Biltmore Hotel, Los
Angeles, Calif.; contact R. Calvin Elliott, Exec. Dir., DPMA,
524 Busse Highway, Park Ridge, Ill. 60068

COMPUTERS and AUTOMATION for October, 1905

SUPERVISORY SYSTEMS FOR THE
DAUTMOUTH TIME-SHARING SYSTEM
(Continued from page 27 )
ning for background control cards. When a control card is
encountered that calls for a task that cannot be run in
parallel and for which the background supervisor is needed,
a signal is sent to the master supervisor.
\Vhen the foreground supervisor receives a command to
run background from the master, the background supervisor
replaces the foreground supervisor. The background supervisor uses 1.5K of memory, but provides the background job
with routines for tape, disk, and printer operations. In
addition, the supervisor will place on the background output
tape the output destined for the high-speed printer or the
card punch. After completion of the job or jobs, the output
will be transferred to the printer or punch by the foreground
supervisor, thus significantly decreasing the slave computer
time required. In effect, the foreground supervisor is acting
as an off-line peripheral to peripheral computer. When the
master supervisor sends a dump background message or when
the program is roadblocked, the background supervisor
dumps 15K of memory and then reads in the foreground
supervisor which then takes control.

Conclusions and Observations
While the decision to have two supervisors was dictated
by the available hardware, the division of labor chosen has
worked out surprisingly well. The master computer handles
almost all of the supervisory tasks while the slave computer
CO!l("l'ntrates on what it can do best - floating point calculations. The two-computer situation probably contributed substantially to the rapid development of the Dartmouth Time
Sharing System by providing a trivial solution to the memory
allocation and protect problems.
On the technical side, the Dartmouth System has shown
that time sharing can be done with less than large-scale
equipment, and quite well at that. Not only that, but the
resulting system can be quite efficient, provide good service
for foreground users, and also provide for the less frequent
largp job in background. The efficiency of use of the slave
computer, which performs the floating point calculations, is
about the same as in a conventional system using batchprocessing if the tape and peripheral overhead is properly
measured.
On the man-machine interface side, the Dartmouth System
has shown that computing can be made simple, that the
communication with the system and the programming languages can be made natural and easy to use. Computing
no longer need be the private realm of the expert. The
student and the faculty member can now make use of this
powerful tool. I t is now possible to consider teaching computing on a wide basis in colleges, secondary schools, and
even primary schools. The research worker now has available a computing power that he can call up almost at a
moment's notice and can usc efficiently and at reasonable
cost for running small problems as well as large ones.
Judging from the overwhelming success at Dartmouth and
elsewhere, there can be no doubt that time-sharing and
simplified man-machine interfaces will play an extremely
important role, not only in educational institutions but also
in private industry and government as well.

References
I.

Lochner, Kenneth M., Jr., "The Evolving Time-Sharing
System at Dartmouth College," in Computers and Automation, September 1965, pp. 1O-1l.
"A Manual for BASIC," Dartmouth College, 1965. (For
copies, please write to the Dartmouth Bookstore, Hanover, New Hampshire, 80 cents per copy, postpaid.)

Important new books from

BASIC COMPUTER PROGRAMMING
IBM 1620 -

FORTRAN

DECIMA M. ANDERSON
Drexel Institute of Technology
This publication has won national recognition
as a successful beginning text. The book is
designed to take the student through every step
necessary to write elementary computer programs. Each chapter is a complete learning
unit - thus, each phase of computer programming and the FORTRAN system can be
thoroughly absorbed and applied. 245 pages,
spiral-bound, $4.50.

Ready in October . . .
COMPUTER PROGRAMMING
FORTRAN IV
DECIMA M. ANDERSON
Drexel Institute of Technology
A thorough treatment of the entire FORTRAN IV language. Intensive, step-by-step
guidance covers every area from the physical
units of the computer and how they work (input, output, memory, arithmetic-logic, and
control units) through basic programming
concepts (machine language, assembly systems,
translating systems, other software, and operating systems) to the actual analysis and solution
of problems. Includes full treatme.nt of FORTRAN IV arrays and subprograms and numerous sample programs and exercises. (Solutions manual in preparation.) 350pages, spiralbound, $4.95 (tent.)

APPLETON-CENTURY-CROFTS
440 Park Ave. S., N.Y., N.Y. 10016
Division of Meredith. Publishing- Company

Designate No. 13 on Readers Service Card

COMPUTERS and AUTOMATION for October, 1965

NEW PATENTS
RAYMOND R. SKOLNICK
Reg. Patent Agent
Ford Inst. Co., Div. of Sperry Rand
Corp., Long Island City 1, New York
The following is a compilation of
patents pertaining to computer and associated equipment from the "Official
Gazette of the U. S. Patent Office,"
dates of issue as indicated. Each entry consists of patent number / inventor (s) / assignee / invention. Printed
copies of patents may be obtained from
the U.S. Commissioner of Patents,
Washington 25, D.C., at a cost of 25
cents each.

May 11, 1965 (Continued)
3 183485/ John F. Cubbage, Phoenix,
, Arizona/ General Electric Co.! Logic
Circuit Employing Capacitor Switching Elements.
3 183488/ Richard M. Bloch, West New, t~n, Alan J. Deerfield, Franklin and
Lynn W. Marsh, Jr., Marblehead,
Mass.! Honeywell Inc.! Data Processing Apparatus.
3,183,489/ George J. Laurer, Johnson
City and Carl D. Southard, Endwell,
NY/ IBM Corp.,! Data Transfer
Device.
3,183,490/ John F. Cubbage; Phoenix,
Arizona/ General ElectrIc Co. of
NY/ Capacitive Fixed Memory System.
3,183,495/ Albert Blain, Phila.,· Pa./
Sperry Rand Corp./ Random Access
Magnetic Tape Memory Systems.

June 1, 1965
3,186.634/ Alan Foster, Addiscombe and
Raymond Owen Parmenter, Mitcham, England/ International Computers and Tabulators, Ltd.! Data
Recording Apparatus.
3,187,308/ Stanley P. Frankel, Los Angeles, Calif.! General Electric Company/ Information Storage System
for Microwave Computer.
3,187,309/ Paul David Dodd, San Jose
and George L. Owens, Los Gatos,
Calif.! IBM Corp./ Computer Memory.
3,187,310/ James E. Drummond, Bellevue, Roy R. Johnson, Vashon and
Betsy
Ancker-Johnson,
Seattle,
Wash.! The Boeing Company, Seattle, Wash.! Solid State Data Storage
and Switching Devices.
3,187,311/ Arthur E. Wemstrom! Los
Angeles, Calif.! Hughes Alrcraft
Co./ Memory Core Device.
3,187,312/ Friedrich Ulrich, Neustadt,
near Waiblingen, Germany/International Standard Electric Corp./ Circuit Arrangement for Binary Storage
Elements.

June 8, 1965
3,188,480/ Robert Betts, Vestal, NY/
IBM Corp.! Multiaperture-Core
Logic Circuit.
3 188,613/ George A. Fedde, Norristown,
, Pa./ Sperry Rand Corp./ Thin Film
Search Memory.
3,188,614/ Petrus Ludovicus Maria van
Berkel, Voorburg, Netherlands/ de
Staat der Nederlanden, ten deze
Vertegenwoordigi door de DirecteurGeneral der Posterijen, Telegrafie en
Telefonie, The Hague, Netherlands/
Apparatus for Compensating For
Skewed Digital Information, Upon a
Magnetic Tape.

May 18, 1965
3,183,579/ George R. Briggs, Princeton
and Rabah Shahbender, Berlin, NJ/
Radio Corp. of America/ Magnetic
Memory.
3,184,712/ Arthur W. Holt, Silver Spring,
Md./ by mesme assignments to Control Data Corp.! Core Correlation
Matrix Reader.
3,184,717/ Floyd A. Behuke, Ruby, NY/
IBM Corp.! Associative Memory
Low Temperature Fast Read Circuit.
3,184,718/ Jacques Albin, ChaviIle, Alice
Maria Recoque, Sartrouville and
Andre
Michel
Richard,
Paris,
France/ Societe d'Electronique et
d'Automatisme, Courbevoie, France.!
Information Handling Systems.
3,184,723/ Frank M. Goetz, Franklin
Square, NY/ Bell Tele. Labs. Inc.,!
Logic Detector Circuit.
3,184,724/ Eugene H. Irasek, Los Angeles, Calif.! The National Cash
Register Co., Dayton, Ohio/ Random-Access Information Storage Device Utilizing Flexible Rectangular
Magnetic Strips.

June 15, 1965

May 25, 1965

3,189,754/ Harold D. Ausfresser, Baltimore and Richard D. French.
Arnold, Md.! Westinghouse Electric
Corp./ Computer Logic Circuit.
3,189,757/ Albert Feller, Riverton, NJ/
Radio Corp. of America/ Logic Circuit.
3,189,872/ William F. Beausoleil, Poughkeepsie and Dominick .J. Galage,
Newburgh, NY/ International Business Machines Corp.! Data Handling
Mechanism.
3,189,877 / Wilbur David Pricer, Wappingers Falls and Hermann P. Wolff,
Poughkeepsie, NY/ IBM Corp./
Electronic Memory Without Compensated Read Signal.
3,189,879/ Robert M. MacIntyre, Newport Beach and Cravens L. Wanlass,
Santa Ana, Calif.! by mesme assignments to Raytheon Co./ Orthogonal
Write System for Magnetic Memories.
3,189,889/ Argyle W. Bridgett, Newton,
Mass./ Image Instruments Inc.,
Newton, Mass./ System for Modifying Stored Data.

3,185.965/ Chi-Yuan Lee, Chatham, NJ/
Bell Tele. Labs. Inc.! Information
Storage System.
3,185,969/ William E. Burns, Los Gatos,
Calif./ IBM Corp./ Core-Transistor
Logical Device.

3,191.006/ Emik A. Avakian, 92 Juana
St., Tuckahoe 7, NY / - 0 - / Information Storage, Retrieval and Handling Apparatus.

June 22, 1965

3,191,0071 Harold P. Mixer, Boca Raton,
Fla./ Sperry Rand Corp./ Information Sensing Device with Electromechanical Storage.
3,191,009/ Per Lennart Anderson, Berwyn and Olver G. Aberth, Swarthmore, Pa.! Sperry Rand Corp./
Check Digit Verifiers.
3,191,012/ Harold Fleisher, Pough.keepsie and Robert 1. Roth, Briarcliff
Manor, NY / IBM Corp.! Memory
Readout and Summing System.
3 191,054/ Walter Ghisler, Upplands
, Vasby, Sweden and Simon Middelhoek, KiIchberg, Zurich, Switzerland.! IBM Corp.! Coplanar Thin
Magnetic Film Shift Register.
3,191.05'71 Shao C. Feng, Huntington,
NY/ Sperry Rand Corp'; Current
Adder Type Logic Circuit.
3,191,064/ Charles C. Ih, Phila., Pa.!
Sperry Rand Corp.! High Speed
Switching Circuit.
3,191,067/ Herbert Zimmerman, Phila.,
Pa./ USA as represented by the Secretary of the Air Force/ Logical
Gating and Routing Circuit.
3,191.151/ John E. Price, San Fra'1cisco,
Calif./ Fairchild Camera & Instrument Corp.! Programmable Circuit.
3,191,155/ Robert R. Seeber, Jr., Poughkeepsie and Arthur J. Sciver, Jr.,
Wappingers Falls, NY/ IBM Corp.!
Logical Circuits and Memory.
3,191,158/ -Charles A. Sherman, Tacoma,
Wash.! Weyerhaeuser Co., Tacoma,
Wash.! Capacitor Memory Device.
3 191 161/ Robert W. Clark, Centerville,
, Ohio/ The National Cash Register
Co./ Means for Driving Magnetic
Storage Elements.
3,191,162/ William W. Davis, Minneapolis, Minn.! Sperry Rand Corp./
Magnetic Thin Film Memory Cell.
3,191,163/ David J. Crawford, Poug~
keepsie, NY/ IBM Corp./ Magnetic
Memory Noise Reduction System.
3 191 164/ John P. Lekas, Hollywood,
, Calif./ by mesme assignments to
Litton Systems, Inc./ Moving Head
Memory Device.

June 29, 1965
3,191,860/ Walter G. Wadey, Bethesda,
Md.! Sperry Rand Corp.! Fluid
Logic Control.
3,192,366/ Leslie L. Cochran, Minneapolis, William Weigler, St. Paul,
James C. Nelson, Rosemount and
Harold L. Ridout, Minneapolis,
Minn.! Sperry Rand Corp.! Fast
Multiply System.
3,192,368/ Abraham Franck and George
F. Marette, Richfield and Berc 1.
Parsegyan, St. Paul, Minn.! Sperry
Rand Corp.! Arithmetic System Utilizing Ferromagnetic Elements Having Single Domain Properties.
3,192,369/ William Francis Schmitt,
Wayne, Pa.! Sperry Rand Corp.!
Parallel Adder with Fast Carry Network.
3,192,370/ Thomas .I. Matcovich, Willow
Grove, Pa. and Joseph J. Chang,
West Lafayette, Ind.! Sperry Rand
Corp.! Adding Circuit Using Thin
Magnetic Films.
3,192,396/ Lawrence Hasdorff, Madison,
NJ/ Bell Telephone Labs. Inc./
Logic System.
3,192,410/ Woo F. Chow, Horsham
Township, Pa.! Sperry Rand Corp./
Logic Circuit with NRZ Operation.

COMPUTERS and AUTOMATION for October, 19G5

".,

BOOKS AND
OTHER
PUBLICATIONS
- Reviews
Moses M. Berlin
Allston, Mass.
We publish here citations and brief
reviews of books and other publications
whicp have a significant relation to
computers, data processing, and automation, and which have come to our
attention. We shall be glad to report
other information in future lists if a review. copy is sent to us. The plan of
each entry is: author or editor / title /
publisher or issuer / date, publication
process, number of pages, price or its
equivalent / comments. If you write to
a publisher or issuer, we would a ppreciate your mentioning Computers and
Automation.
Harrison, Howard L. and John G. Bollinger I Introduction to Automatic Controls I International Textbook Co.,
Scranton 15, Penna. I 1963, printed, 349
pp, cost?
This book, intended for the mechanical
engineer, introduces the fundamentals of
automatic control. In addition to theoretical information, a number of applications are reviewed. The first five of
fourteen chapters deal with the time domain in which the underlying principles
of dynamic system response are most easily
understood. The sixth chapter, "Laplace
Transformation", serves as the basis for
the ensuing discussion of control system
analysis and synthesis. Both analog and
digital computers are covered. Five appendices, including "Digital Computing
for Control System Analysis" and "Transfer-Function Simulation on the Analog
Computer", a bibliography, and an index
arc included.
Rademacher, Hans, and Otto Toeplitz, I
The Enjoyment of Mathematics I
Princeton University Press, Princeton,
N. J. I 1957, printed, 204 pp, $4.50
This is a beautifully written book, with
many interesting and vivid examples,
which deals with interesting and significant mathematical topics which may be
understood with only the mathematical
hackground obtained in high school plus
a capacity to apply one's self.
For many persons approaching work in
the computer field and thereby coming
inlo contact with mathematics, this book
would be useful and worthwhile to give
lhe flavor of intriguing mathematical
problems which may be enjoyed.
Topics include the prime numbers, the
four-color problem, the regular polyhed rons, relations of irrational and rational
numbers. etc.
Uigital Equipment Corporation, staff of I
An~llog·Digital Conversion Handbook I
nigital Equipment Corp., 146 Main St.,
Maynard, Mass. I 1964, printed, 73 pp, .
free on request
Using simplified diagrams to introduce

the beginner to various conversion methods, this publication presents a comprehensive discussion of analog-to-digital conversion circuitry and logic. Seven chapters
include: "Basic Elements of Conversion",
"Typical Converter Logic". "Interconnection and Calibration", and "Testing an
Analog-to-Digital Converter". Four appendices, including "Table of Voltages"
and "Digital Symbols and Standards",
thirty-five illustrations and nine tables are
included.
Lorens, Charles S. I Flowgraphs for the
Modeling and Analysis of Linear Systems I McGraw-Hill Book Co., Inc., 330
West 42 St., New York 36, N. Y. I 1964,
printed, 178 pp, $3.50
.
Flowgraph techniques. i.e., graphic representation of systems of equations, and
their application in analyzing linear equations, are here discussed. Examples are
given of applications to linear equations
of electrical, mechanical, statistical and
electronic systems. Fifteen chapters include: "Introduction", in which a brief
history and some general rules are given,
"Derivations of the Loop Rule", "Formulation by Conventional Network Analysis",
"Statistical Properties", and "Continuous
Generating Functions". Problems, references. and an index are included.

HIGH PRICES PAID
FOR USED i.B.M.
DATA PROCESSING
MACHINES
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VERIFIERS •••••• Model
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CEPTABLE, WE WOULD SEND PAYMENT
IN ADVANCE, AND ARRANGE PICK UP
OF MACHINES, AS IS, UNCRATED, BY
OUR FREIGHT CARRIER.

- Notices
Burnett-Hall, D. G., L. A. G. Dresel and
P. A. Samet I Computer Programming
and Autocodes I D. Van Nostrand Co.,
Inc., 120 Alexander St., Princeton, N. J.
I 1964, printed, 106 pp, $4.50
Silvern, Leonard C. I Fundamentals of
Teaching Machine and Programmed
Learning Systems: Course One, Programmer's Kit I Education and Training Consultants, 979 Teakwood Road,
Los Angeles, Calif. 90049 I 1964, offset,
103 pp, $27.50 for two volume set
Lytel, Allan I Calculus for the Electronics
Technician I Howard W. Sams & Co.,
Inc., Indianapolis 6, Ind. I 1964,
printed, 160 pp, $3.95
Middleton, Robert G. / Pulse Circuit
Technology I Howard W. Sams & Co.,
Inc., Indianapolis 6, Ind. I 1964,
printed, 192 pp, $3.95
Data Processing, vol. VI, Proceedings of
the 1963 International Data Processing
Conference I Data Processing Management Assn., 524 Busse Highway, Park
Ridge. Ill. I 1963, printed, 498 pp,
$3.75
Martino. R. L. / Project Management and
Control: vol. I, Finding the Critical Path
I American Management Assn., 135
West 50 St., New York, N. Y. 10020 I
]964, printed, 144 pp, $15.00
Jacker, Corinne I Man, Memory, and
Machines: An Introduction to Cybernetics / MacMillan Co., 60 Fifth Ave.,
New York, N. Y. 10011 I 1964, printed,
126 pp, $3.95
Schuster, Donald H. I Logical Electronic
Troubleshooting: A Programmed Book
I McGraw-Hill Book Co., Inc., 330 West
42 St., New York 36, N. Y. I 1964,
printed, 303 pp, $5.95
Levine, Leon I Methods for Solving Engineering Problems Using Analog Computers I McGraw-Hill Book Co., Inc.,
330 West 42 St., New York, N_ Y. 10036
I 1964, printed, 485 pp, $14.50
Renwick, W. / Digital Storage Systems I
John Wiley & Sons, Inc., 605 Third
Ave., New York 16, N. Y. I 1964.

COMI)UTERS and AUTOMATION for October, 1965

L. A. PEARL CO.
801 SECOND AVE. NEW YORK, N.Y. 10017
PHONE: 212 OREGON 9-6535
Designate No. 17 on Readers Service Card

printed, 212 pp, $8.50
Winograd, S., and J. D. Cowan I Reliable
Computation in the Presence of Noise
I M. I. T. Press, Cambridge 42, Mass.
I 1963, printed, 96 pp, $5.00
Llewellyn, Robert W. I Linear Programming I Holt, Rinehart and Winston,
Inc., 383 Madison Ave., New York 17,
N. Y. I 1963, printed, 371 pp, $9.00
Wilkinson, J. H. I Rounding Errors in
Algebraic Processes I Prentice-Hall, Inc.,
Englewood Cliffs, N. J. 07632 I 1964,
printed, 161 pp, $6.00
Chang, Kern K. N. I Parametric and
Tunnel Diodes I Prentice-Hall, Inc.,
Englewood Cliffs, N. J. 07632 I 1964,
printed, 256 pp, $10.95
Gass, Saul I. I Linear Programming, 2nd
edition I McGraw-Hill Book Co., Inc.,
330 West 42 St., New York 36, N. Y.
I 1964, printed, 280 pp, $8.95
Beckenbach, Edwin F., and Richard Bellman I Inequalities, 2nd revised printing
I Springer- Verlag New York, Inc., 175
Fifth Ave., New York, N. Y. 10010 I
1965, printed, 198 pp, cost?
MacMillan, R. H., T. J. Higgins, and P.
Naslin, editors / Progress in Control
Engineering, volume 2 I Academic
Press, Inc., 111 Fifth Ave., New York,
N. Y. 10003 I 1965, printed, 292 pp,
$13.50
Weber, Samuel, editor / Modern Digital
Circuits I McGraw-Hill Book Co., Inc.,
330 West 42 St., New York 36, N. YI 1964, printed, 358 pp, $9.50
Fowler, L., R. D. Eanes, and T. J. Kehoe,
editors I Analysis Instrumentation 1963:
Proceedings of Ninth National Instruments Society of America Analysis Instrumentation Symposium I Plenum
Press, Inc., 227 West 17 St., New York
11, N. Y. I 1963, offset, 261 pp, $12.50

Lylcl, Allan I Fundamentals of Data Proccssing I Howard 'V. Sams & Co., Inc.,
Indianapolis. Ind. I 1964, printed, 320
pp, $6.95
Lytel, Allan I Handbook of Algebraic
and Trigonometric Functions I Howard
W. Sams & Co., Inc., Indianapolis, Ind.
I 1964, offset, 160 pp, $2.95
Crowhurst, Norman H. I Mathematics for
Electronics Engineers & Technicians (A
Programmed Text) I Howard W. Sams
& Co., Inc., Indianapolis, Ind. I 1964,
printed, 256 pp, $6.95
Hart, B. L. J. I Dynamic Systems Design
I Mercury House, 103 Waterloo Road,
London, S. E. 1, Eng. I 1964, printed,
233 pp, $5.30
Fenves, S. J., R. D. Logcher, S. P. Mauch,
and K. P. Reinschmidt I STRESS: A
User's Manual-A Problem-Oriented
Computer Language for Structural Engineering I M. 1. T. Press, Cambridge,
Mass. 02142 I 1964, offset, 51 pp, $2.00
Manning, Eric G. I A Performance Measure for Game-Playing Programs, AD
601621 I Supt. of Documents, U. S.
Govt.Printing Office, Washington, D. C.
20402 I 1964, offset, 39 pp, $1.25
Hendershot, Carl H. I Programmed Learning: A Bibliography of Programs and
Presentation Devices, third edition I
C. H. Hendershot, 4114 Ridgewood
Drive, Bay City, Mich. / 1964, offset,
190 pp, $8.00 ($5.00 in paperback)
Westwater, F. L. / Electronic Computers,
I Dover Publications, Inc., 180 Varick
St., New York, N. Y. 10014 I 1964,
printed, ·151 _pp, $2.00

Goshay, Robert C. I Information Tech·
nology in the Insurance Industry /
Richard D. Irwin, Inc., Homewood, Ill.
I 1964, printed, 160 pp, $6.65
Toombs, H. D., and L. A. Delhom /
Development of an Intermediate Capacity High-Speed Magnetic Film Memory
System, AD 600271 / Supt. of Docu·
ments, U. S, Govt. Printing Office, Washington, D. C. 20402 I 1963, offset, 48
pp,' $3.00
Centner, R. M. / Development of Adaptive Control Techniques for numerically-Controlled Milling Machines, AD
600330 I Supt. of Documents, U. S. Govt.
Printing Office, Washington, D. C.
20402 / 1964, offset, 48 pp, $3.00
Entwisle, Doris R. / Auto-Primer in Computer Programming / Blaisdell Pub. Co.,
135 West 50 St., New York, N. Y. 10020
I 1963, printed, 345 pp, $6.50
Harris, D. J. / Analogue and Digital Computer Methods / Gordon and Breach
Science Publishers, 150 Fifth Ave., New
York 11, N. Y. / 1964, printed, 106 pp,
$5.95
Adelfio, Salvatore A., and Christine F.
Nolan / Principles and Applications of
Boolean Algebra I Hayden Book Co.,
New York, N. Y. I 1964, printed, 325
pp, cost?
Stein, Edward S., and Associates I Factors
Influencing the Design of Original-DOcument Scanners for Input to Computers, NBS Technical Note 245 / Supt.
of Documents, U. S. Govt. Printing
Office, Washington, D. C. 20402 / 1964,
offset, 50 pp, 35 cents

Buffa, Elwood S. I Models for Production
and Operations Management I John
Wiley & Sons, Inc., 605 Third Ave.,
New York 16, N. Y. I 1963, printed,
632 pp, $9.25
Larsson, Robert D. I Equalities and Ap·
proximations: With Fortran Program·
ming I John Wiley & Sons, Inc., 605
Third Ave., New York 16, N. Y. I 1963,
printed. 158 pp, $5.50
Camp, Ruth D. I Bureau of Ships
Technical Library Thesaurus of Descriptive Terms and Code Book I Bureau of
Ships, Dept. of the Navy, Washington
25, D. C. / 1964, offset, 835 pp approx.,
cost?
Raisbeck, Gordon I Information Theory:
An Introduction for Scientists and Engineers I M. 1. T. Press, Cambridge,
Mass. 02142 I 1964, printed, 105 pp,
$4.00
C&A CLASSIFIED COLUMN
Use economical C&A Classified Ads
to buy or sell your computer and data
processing equipment, to offer services to the industry, to offer new
business opportunities, to seek new
positions or to fill job vacancies, etc.
Rates for Classified Ads: 90~ per
word - minimum, 20 words. First
line all capitals - no charge.
Blind Ads: Box Numbers acceptable
at $4.00 additional to cover costs of
handling and postage.

ADVERTISING INDEX

Send coPY to: Computers and Automation, 815 Washington Street, Newtonville, Mass. 02160. Telephone:
617 -332-5453.

Following is the index of advertisements. Each item contains: Name and address of the advertiser / page number
where the advertisement appears / name of agency if any.
Adage Inc., 1079 Commonwealth
Ave., Boston, Mass. 02215 / Page
59 / Fuller & Smith & Ross Inc.
American Telephone & Telegraph Co. ,
195 Broadway, New York 17, N. Y.
/ Page 2 / N. W. Ayer & Son, Inc.
Appleton-Century-Crofts, 440 Park
Ave., So., New York, N. Y.
10016 / Page 55 / Benson-Lehner Corp., 14761 Califa
St., Van Nuys, Calif. / Page 60
/ Leonard Daniels Advertising
W. H. Brady Co., 743 W. Glendale
Ave., Milwaukee, Wisc. 53209 /
Page 3 / Franklin/ Mautner/ Advertising
Brandon Applied Systems, Inc., 30
E. 42 St., New York, N. Y. 10017
/ Page 21/ California Computer Products, 305
Muller Ave., Anaheim, Calif. /
Page 8 / Advertisers Production
Agency
Computer Fulfillment, 225 East St. ,
Winchester, Mass. 01890 / Page

11/Computron Inc., 122 Calvary St. ,
Waltham, Mass. / Page 4 / Tech/
Reps
Control Data Corp., 8100 34th Ave. ,

So., Minneapolis, Minn. 55440 /
Pages 52, 53 / Klau Van Pietersom-Dunlap, Inc.
A. G. Edwards & Sons, 409 No. 8th
St., St. Louis, Mo. / Page 16 /
Winius-BrandoI1 Co.
Fabri-Tek Inc., 705 Keller Ave., So.,
Amery, Wisc. / Page 6 / Midland
Associates, Inc.
International Business Machines Corp. ,
Data Processing Div., White Plains,
N. Y. / Pages 30, 31 / Marsteller,
Inc.
Memorex Corporation, 1180 Shulman
Ave., Santa Clara, Calif. / Page
2A / Hal Lawrence Inc.
National Cash Register Co., Main & K
sts., Dayton, Ohio 45409 / Pages
48, 49 / McCann-Erickson, Inc.
L. A. Pearl Co., 801 Second Ave.,
New York, N. Y. 10017 / Page
57/Royal Typewriter Co., Inc., Roy type
Div., 1031 New Britain Ave., W.
Hartford, Conn. / Page 17 / West,
Weir & Bartel, Inc.
Scientific Data Systems, 1649 17th
st., Santa Monica, Calif. / Pages
12, 13 / Doyle, Dane, Bernbach, Inc.

Deadline for Classified Ads is the
10th of the month preceding issue.

WE BUY IBM TABULA TING EQUIPment and Solid State Computers. If
you have any of the above equipment
available for current delivery, write
or call collect: Nationwide Office
Machines, Inc., 31 East 32 Street,
New York, N. Y.,. 212-LE 2-9230

OPPORTUNITY FOR A FUTURE WITH
a well known Midwest Manufacturing
Firm. We are now offering exclusive
distributorships for a patented product.
No' competition. Factory trained personne1 will' assist you in setting up a
tried and proven advertising and merchandising program. 100% mark up.
Investment guaranteed. Minimum investment $1, 000. Maximum $14, 000.
All replies confidential. For information write Director of Marketing, P. O.
Box 14049, St. Louis, Missouri 63178.

COMPUTERS and AUTOMATION for October, 1965

AMBI LOG

2 0 C

the only computer designed
especially for signal processing

Using the best of both analog and digital
techniques. the AMBILOGTM 200 Stored Program
Signal Processor is designed from the gruund up
to handle the "floods of data" generated in test
and research programs. Although such
programs cover many fields - biomedical
monitoring. geophysical research. test stand
instrumentation. automatic weapons checkout.
speech analysis - all require complex signal
processing: multiple input acquisition and output
distri bution. mon itori n g, ed iti ng, arith metic.
analysis, recording and display. Because of its
high processing speed and extensive
input/output for both analog and digital data,
AMBILOG 200 is ideally suited for such tasks.
Here are some examples.

Real Time Waveform Measurement
Peak values, axis crossings, ratios of successive' differences, and
other characteristics of analog signals are measured in real time.
Incoming signals are monitored for events of interest, using complex
programmed detection criteria. In a typical biomedical application,
the result is a 100-to-1 reduction in the bulk of magnetic tape
output records.

A( nI~l.;J£W(tlG(~I~) •.cO$(wtldt
B (n '\All~Jor ·W(t)l}(n,!)si n(VV!) gt

Spectrum Analysis
Parallel hybrid multiplication and summing, 2 microsecond 30-bit
digital storage, and a flexible instruction format providing efficient
list processing combine to make the AMBILOG 200 powerful in
statistical signal analysis techniques such as Fourier transformation.
auto and cross correlation, power spectrum density analysis, and
generation of histograms of amplitude spectra.

Digitizing and Recording
Multiple inputs, from up to several hundred sources, are routed
through a multiplexer switch array under stored program control.
At no penalty in sampling rates over conventional systems, the
AMBILOG 200 converts incoming data to engineering units for
recording or monitoring. An analog-to-digital converter performs
a complete 15-bit conversion in 4 microseconds for digital
storage, recording or outputing.

Display Generation
Multiple analog outputs facilitate close man-machine relationships
in systems involving visual displays. Points of an image stored in
memory are rotated through three space angles and projected on a
CRT at a 50 Kc rate. Co-ordinate transformation is accomplished
simultaneously with digital-to-analog conversion.

For technical reports describing in detail these and similar
AMBILOG 200 applications, write I. R. Schwartz, Vice President.

?<:)~f'~

1079 Commonwealth Avenue, Boston,
Massachusetts 02215
Designate No. 18 on Readers Service Card

COMPUTERS and AUTOMATION for October, 1965

[?D~§u

\;~

\1" '

SECOND GENERATION
CRT MICROFILM
PRINTER/PLOTTER
ON THE·MARI(ET TODA··Y
The 8-L 120 is a truly expandable, modular system, completely solid-state and features the latest in high reliability
silicon logic circuits.

o Truly off line-does not require expensive computer tape transport
o Through-put-120 frames per minute for both 556 and 800 bpi tapes
o 64 character selection with 128 character option
o Vector line drawing and axes line
drawing
o Handles either 16mm or 35mm
monocromatic film
o Tape transport compatible with all
7-track, Ih-inch magnetic tapes or
9-track, Ih-inch magnetic tape
o Optional "Quick-Look" hard copyexposure simultaneous with film

~
V~~61

benson-Iehner

co'p.

CALIFA STREET
VAN NUYS, CALIFORNIA
•

781-7100

Demonstrations Now Being Conducted at Van Nuys
Circle No. 19 on Readers Service Card

l
I

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196510

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