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POWER, SPACE, WEIGHT v AND SITE PREPARATION
Power, computer
37.2 Kw
Power, air cond
5.0 Kw
Volume, computer
Volume, air conditioner
Area, computer
Area, air conditioner
Room size, computer

50.9
7.5
2,600
1,200
325
100
5,000

KVA
KVA
cu ft
cu ft
sq ft
sq ft
sq ft (entire
system)
Room size, air conditioner
100 sq ft
Capacity, air conditioner
15 Tons
Weight, computer
26,500 lbs
Plenum. Unit wiring overhead.

Good time
102.7 Hours/Week (Average)
Attempted to run time
104.73 Hours/Week (Average)
Operating ratio (Good/Attempted to run time) 0.98
Above figures based on period 1 Jan 60 to 30 Jun 60
Time is available for rent to outside organizations.

ADDITIONAL FEATURES AND REMARKS
Outstanding features are interrogation unit, a
direct on-line paper tape input to computer. at 400
char/sec, dual recording on tape, and variab].e word
and message lengths.
Standard security procedures for handling magnetic
tape have been adopted.

PRODUCTION RECORD
Number produced
Number operating
See BIZMAC I

RELIAB I L1TY, OPERATI NG EXPER IINCEv
AND TIME AVAILABILITY

3
3

INSTALLATIONS
Electronic Data Processing Division
Camden EDP Center
Camden, New Jersey

COST PRICE AND RENTAL RATES
9

(1) Computer, (3) file maint. computers (fixed pro~am), (1) interrogation unit, (182) tape stations,
(1) system control unit, (1) card transcriber, (1)
paper tape transcriber, (2) high speed printers, (1)
transcribing card punch, (3) document printers, (10)
Flexo-writers for the BIZMAC I cost $4,500,000 to acquire. Maintenance service on BIZMAC I is done by computer installation personnel.

PER SONNEL REQU I REMENTS
Three 8-Hour Shifts
f)upervisors
5
Analysts
3
Programmers
4
Coders
14
Clerks & Secretary
2
Librarians
0
('Operators
4
Engineers
0
Technicians
1
In-Output Operators
4
Operation tends toward closed shop.
Methods of training used is a combination of formal instruction and on-the-job training.

BIZMAC II

100

lOl

BIZMAC II

BOGART

MANUFACTU RER
Remington Rand Univac
Division of Sperry Rand Corporation

Bogart Computing System

APPLICATIONS

PERSONNEL REQU IREMENTS

Department of Defense
Located at Fort George G~ Meade, Maryland, the system
is used for mathematical calculations by the Department of Defense.

Department of Defense
One 8-Hour Shift
Supervisors
1
Operators
1
Engineers
1
Technicians
1
Operation tends toward closed shop.
Formal class and on-the-job training is given.

STORAGE
Department of Defense
Medium
No. of Words
Magnetic Core
4,096

RELIAB I LlTY, OPERATI NG EXPER I ENCE
AND TIME AVAILABILITY

Department of Defense
Good t:tme
38 Hours/Week (Average)
Attempted to run time
38.4 Hours/Week (Average)
Operating ratio (Good/Attempted to run time) 0.989
Above figures based on period 1 Dec 59 to 31 Dec 59
Time is not available for rent to outside organizations.

INPUT
Department of Defense
Speed
Media
400 frames/sec
Paper Tape (Ferranti)
Magnetic Tape (IBM 727)
75 inChes/sec
Flexowriter
Manual

I NSTALLATI ONS
OUTPUT

Fort George G. Meade, Maryland

Department of Defense
Media
Speed
Paper Tape
60 frames/sec
Magnetic Tape (IBM 727)
75 inChes/sec
Flexowriter
10 Char/sec

BOGART

p

102

103

BOGART

BRLESC

MANUFACTURER

Ballistic Research Laboratories Electronic
Scientific Computer

Ballistic Research Laboratories

Photo by U. S. Army

APPLICATIONS
Exterior ballistics problems such as high altitude, solar and lunar trajectories, computation for
the preparation of firing tables and guidance control data for Ordnance weapons, including free
flight and guided missiles.
Interior ballistic problems, including projectile,
propellant and launcher behavior, e.g. physical
characteristics of solid propellants, equilibrium
composition and thermodynamic properties of rocket
propellants, computation of detonation waves for
reflected shock waves, vibration of gun barrels and
the flow of fluids in porous media.
Terminal ballistic problems, including nuclear,
fragmentation and penetration effects in such areas
as explosion kinetics, shaped charge behavior, ignition, and heat transfer.
Ballistic measurement problems, including photogrammetric, ionospheric, and damping of satellite
spin calculations, reduction of satellite doppler
tracking data, and computation of satellite orbital
elements.
Weapon systems evaluation problems, including antiaircraft and nati-missile evaluation, war game pro-

BRLESC

104

lems, linear programming for solution of Army logistical problems, probabilities of mine detonations,
and lethal area and kill probabilities of mine detonations, and lethal area and kill probability
studies of missiles.

PROGRAMMI NG AND NUMERICAL SYSTEM
Internal number system
Binary digits/word
Binary digits/instruction
Instructions/word
Instructions decoded
Arithmetic system
Instruction type
Instruction word format

4

4

6

Order Para- Index
type meter

Binary
68 + 4 parity

68

1

33

Fixed and floating point
Three-address

,

14

6

a-Address

Index

14
~-Ad-

dress

6

14

Index

y-Address

Number word format

3
Tag

I

60

Sign

Binary
Point

Number word format

I

3
Tag

1

Sign

Operation
Concurrent
Indexing and control will be concurrent with
arithmetic operations.
Except for arithmetic or Boolean compare inst~uc­
tions, the test overflow instructions with P
b 1,
33
or any arithmetic order that stores in any index
register or stores in the location of the next instruction, the machine always gets its next instruction from·the memory while it is doing the previous
instruction. If this next instruction is one of the
control and indexing orders, it is immediately done,
unless it is an irtput-output order or a test overflow order. If it is done, it proceeds to get another instruction and do it, if possible. Thus almost all of the control and indexing orders can be
done concurrently with the arithmetic or logical
orders. Only the arithmetic and logical orders require the use of the main arithmetic unit of the
machine.
All types of input-output orders can be done concurrently with other instructions. Automatic interlocks are provided so as to prevent timing conflict.
Reference to a main memory position within the range
of either an input or output instruction will halt
the canputer until the input or output transfer has
occurred at that memory position. The computer is
released as soon as the transfer 'of that particUlar
word has been made and does not wait for the entire
transfer to be completed. There is no interlock on
the index memory when it is used as index registers.
Only the effective addresses a, ~, y are conflict
checked. The programmer can easily make the computer wait until such a transfer is complete by using the last address in the index range of the inout order in the A, B, or C addresses of a dummy
order. An input-output instruction is not started
until the previous arithmetic instruction is finished, hence the last arithmetic result may be included in the range of any input-output order.
As many as five input-output orders can be operating concurrently with computing and with each tother.
~here is a separate trunk for reading cards, punching cards, using drum, and two separate trunks for
using magnetic tape and all five of these trunks
can operate concurrently.

Fixed Point

1

4
Binary
Point

Floating Point
52
Coefficient

I

8

]

Biased
Exp of 16

Automatic built-in subroutines
In addition to the standard set of jump instructions, three more jump instructions have been included which will be used in connection with the
"permanent" storage of "built-in" subroutines.
These are Jump to "permanent" instruction, Jump to
"built-in" subroutine, and Set index and jump to
main memory.
Registers and B-boxes
The machine will have 63-one microsecond access
index registers, addressable by the a, ~, and y
addresses of the instruction words.
The parameter bits of the instruction word are
used to indicate variations of the basic order type.
All three arithmetic registers are 68 bits. Tag
bits enter these registers only on t~e logical instructions and the shift instruction if it is cyclic
or is a Boolean shift. On arithmetic orders, the
tag bits are saved in a separate three bit register
and the three extra bits in the arithmetic registers
are used for checking overflow. Thus the range of
numbers in the arithmetic unit is -128 < N < 128.
Add and subtract are performed the same as for
normalized arithmetic, except the result is never
shifted left at the end of the operation.
Before multiply is done, the coefficient that has
the largest absolute value is normalized. There is
no left normalization after the operation. Thus
the result has approximately the same number of significant digits as the operand that had the smaller
number of significant digits. It does tend to retain an average of about two or more bits than it
should, however.
Before divide is done, both operands are normalized but the number of divide steps performed is
reduced accordingly so that the result has approximately the same number of significant digits as the
operand that had the smaller number of significant
digits.

STORAGE

AR ITHMETI C UNIT
Operation
Fixed point add or subtract
Fixed or floating multiply
Fixed or floating divide
Floating add or subtract
Boolean logic operation
Indexing and control

Microseconds
Excl A T
Incl A T
1
5
20
25
60
65
3.0
6
1
5
2
2(Avg)

Construction (Arithmetic unit only)
The arithmetic unit is constructed of standard
vacuum tube logical packages, with tube driven,
crystal diode logical gating. The arithmetic unit
only is constructed of 1727 vacuum tubes of 4 types,
853 transistors of 3 types, 46,500 diodes of 2 types
and 1,600 pulse transformers of 1 type.
Arithmetic mode
Parallel
Timing
Synchronous
Logical events are controlled by a five-phase
clock, permitting decisions at a 5 Mc rate.

105

Access
No. of Digits
Words
per Word
Microsec
Media
Magnetic Core (Main)
2
72 binary
4,096
16 binary
1
Magnetic Core (Index)
63
Magnetic Drums (Two)
24,576
Magnetic Tapes (Six)
16 Unite:
No. of units that can be connected
400 Char/in
No. of chars/linear inch
16 Tracks/tape
Channels or tracks on the tape
0.80 Inches
Blank tape separating each record
150 Inches/sec
Tape speed
120,000 Char/sec
Transfer rate
3.0 Millisec
Start time
3.0 Millisec
Stop time
Average time for experienced
60 Seconds
operator to change reel
Physical properties of tape
1.0 Inches
Width
Length of reel
2,500 Feet
0.43 Magnetic coating
Composition
1.45 Mil
Provision is made for up to 16,384 words of high
speed memory and system can be expanded to 28 tape
stations.

BRLESC

INPUT

Capacity, air conditioner

Speed
800 cards/min
See "Storage"

Media
Card Reader
Magnetic Tape

PRODUCTION RECORD
Number of systems produced to date
1
Operational date anticipated as 1 April 1961.

OUTPUT
Media
Speed
Card Punch
250 cards/min
Magnetic Tape
See "Storage"
Peripheral equipment. A single unit that is capable of converting alphanumerical characters from
cards to tape, tape to high speed printer, tape to
cards, cards to high speed printer and paper to
magnetic tape.

COST PRICE AND RENTAL RATES
p

The approximate cost, including an additional bank
of 4,096 words of high speed memory, 6 tape stations,
the system as described, with all peripheral converters and input-output equipment, site preparation,
overhead and other related costs will be approximately 2.0 million dollars.

CI RCU tT ELEMENTS OF ENTI RE SYSTEM
Type
Tubes
.5847
6197
6c4
6AQ5
Misc
Diodes
LD70/CTP309

:LD71
Misc
Transistors
2N697
2N1143
2N398
Misc

downstairs.
25 Tons

Quantity

PERSONNEL REQU I REMENTS

5,600
110
110
220
80

Three 8-Hour Shifts
Supervisors
6
Analysts
3
Programmers and Coders
14
Clerks
1
Engineers
1
Technicians
6
No engineers are assigned to the operation of the
machine, but are used for development and design of
additions to the machine. The tecmlicians consult
the engineers when a total break-down OCCurB.

12,600
100,000
13,700
600
240
1,600
6,300

RELIABILITY OPERATING EXPERIENCE,
AND TIME AVAILABI LlTY
p

A high degree of reliability is achieved by utilizing
standard logical plug-in packages, a ruggedized, long
life, driver tube, derated components and point-topoint soldered connections.

CHECKI NG FEATURES
Code checking features will include stopping on any
selected address, the display of the contents of
any memory cell, the display of normal or abnormal
conditions, the ability to manually store in any
selected memory cell, and the ability to transfer
control to any part of the system. Parity checking
is performed in each of the four 17-bit groups in
each word.

I NSTALLATI ONS
Computing Laboratory
Ballistic Research Laboratories
Aberdeen Proving Ground, Maryland

POWER, SPACE, WEIGHT, AND SITE PREPARATION
Power,
Power,
Space,
Space,

computing system
air conditioner
computing system
air conditioner

BRLESC

35 Kw
20 Kw
Plenum is 30 ft x 40 ft
Chilled water is sent
two flights up to computer site to heat exchanger,
transferring heat from
computer closed loop air
to closed loop chilled
water. On ground floor,
compressor refrigerant absorbs heat from chilled
water. An evaporative
system absorbs heat from
refrigerant in a cooling
tower. Compressor located
two floors below. Liquid
coolant piped upstairs.
Heat exchanger, computer
closed-loop air-to-coolant
at computer site, and
coolant-to-outside air

106

107

BRLESC

BURROUGHS 204

MANUFACTURER
Burroughs Corporation
(Formerly manufactured by the Electrodata Corporation)

Burroughs 204 Electronic Data Processing System

!:'hoto by U. S. Army Ordnance 'l'ank-Automotive Command

APPLICATIONS
M9.nufacturer
See Burroughs 205 for further details
U. S. Army Tank-Automotive Command
Located at Detroit Arsenal, the system is used for
engineering projects (tank firing stability studies,
fuel consumption (battlefield day), performance analysis, suspension studies, and data reduction), and
for mathematical programs (solution of complex formula and equation, empirical curve fitting, precision
simulation of vehicle behavior, land locomotion research support, and mathemetical model development).
U. S. Naval Air Test Center
Located in Armament Test, NATC, Patuxent River, Md.,
the system is used for reduction of experimental
test data concerning naval aircraft and systems.
Examples are phototheodolite space positions, aircraft sighting tables, fire control systems test,
and aircraft performance - climb, speed, etc.
U. S. Air Force Wright Air Development Center
Located in Bldg. 30, WADD, Wright-Patterson AFB,
Ohio, the system is used for scientific data reduction in flight and engineering test field.
American Bosch Arma Corp.
Located at the Arma Division, ABAC, Garden City, N.
Y., the system is used for the design, development,
testing, and evaluation of inertial guidance systems,

BURROUGHS 204

108

airborne digital computers, and other electronic
equipment.
California Research Corporation
Located at 527 Standard Avenue, Richmond, California,
the system is used for computative work associ.ated
with a large petroleum research laboratory. It might
be described as calculations resulting from chemical
analysis, engineering calculation, and analysis of
data.
Convair, Division of General Dynamics Corp.
Located in Building 4{ Convair, Pomona (Engineering
Computer Laboratories), this machine is used on many
varied types of problems, for example, trajectories,
evaluation of rational polynomials, finding roots of
polynomials, inverse Laplace, heat transfer, optics,
regression analysis, scheduling of completion of
manufacture of a missile via completion of its parts,
etc.
The Dow Chemical Company
Located in A-1201, Room 42, Plant "A", Freeport,
Texas, the system is used for the solution of technical and scientific problems.
Great Lakes Pipe Line Company
Located in the Bryant BUilding, Kansas City, Mo.,
the system is used to conduct research on product
scheduling by computer accounting and administrative
control operations.

Photo by American Bosch Arma Corporation
Socony Mobil Field Research Laboratory
Located in Dallas, Texas, the system is used in
theoretical studies in fluid flow, elasticity, geophysics, nuclear physics, reservoir engineering,
heat transfer, design of experimental apparatus,
data reduction and interpretation and engineering
design.
Socony Mobil Oil Company, Inc.
Located in Paulsboro, New Jersey, the system is used
for problems of large s;ystems of linear algebraic
equations, differential equations, statistics, process simulation, and miscellaneous scientific computation.
United Gas Corporation
Located at 8015 St. Vincents Ave., Shreveport, La.,
the system is used for scientific computing, including mass spectrometer analyses, reservoir mechanics,
pipeline flow calculations, instrument design, flash
and K-value calculations, and research problems of
a non-recurring nature. It is also used for data
processing, including special calculations, non-routine in nature, experimentation with data handling
and processing procedures, business games, and statistical analysis.
Purdue University Computing Laboratory
Located at ENAD, W. Lafayette, Indiana, the system
is used for undergraduate and graduate instruction
and research. It is also used for student scheduling.

PROGRAMMING AND NUMERICAL SYSTEM
Manufacturer
See Burroughs 205 for further details.

ARITHMETIC UNIT
Manufacturer
See Burroughs 205 for further details.

STORAGE

Manufacturer
See Burroughs 205 for further details.
U. S. Army OTAC
Magnetic Drum 4,000 words (Main); Magnetic Drpm 80
words (High Speed Loops); Magnetic Tape 800,OPO words.
U. S. Naval Air Test Center
Magnetic Drum 4,080 words; Magnetic Tape 400,000 words,
2 units.
USAF WADC
MD 4,080 words; MT 400,000 words/tape.
Arma

MD 4,080; MT 400,000.
Cal Res Corp

MD 4,080
Convair

MD 4,080 words; Magnetic tape can be construed as
additional storage. Three tape transports are "online" with the system. Each 2500 ft reel of 3/4 inch

109

BURROUGHS 204

Photo by California Research Corporation
tape can have 10,000 blocks of 20 words-on each of two
read/write heads (channels). Approx. 10000X20X2 =
400,000 words.
Dow Chemical
MD 4,080 words; MT 2,000,000 words. The average
access time for 80 words of drwn memory is 850 microseconds.
Great Lakes Pipe Line
MD 4,080; MT 3 units
Socony - Dallas
MD 4,080; MT 1,200,000 words, 3 units. Tape is
addressable. Tape search for a specific location
can occur simultaneously with computation. Maximum
search time is approximately 7 minutes.
Socony - Paulsboro
MD 4,080 words; MT
United Gas
No. of
Access
No. of
Media
Words
Digits
Microsec
Magnet ic Drum (Main)
4, 000
44, 000 8, 500
Magnetic Drum (Loop)
80
800
850 6
Magnetic Tape
400,000
4,400,000 240 x 10
4
DataFile
2,000,000 22,000,000 240 x 10
1~ high speed 20-word drum loops (mean random access
850 microseconds). 4,000 word intermediate-speed
(3960 rpm) main drum memory. This system has two
magnetic tape transports and one Data File.
Purdue
MD 4,080; MT 400,000/reel. If the entire tape is
accessed on a random basis, the average access time
will be 3.5 minutes.

BURROUGHS 204

110

INPUT
Manufacturer
See Burroughs 205 for further details.
U. S. Army OTAC
Media
Speed
Paper Tape
540 char/sec
Two independent photo electric readers are available for use, each may be called upon for read-in
by machine programming.
U. S. Naval Air Test Station
Paper Tape
540 digits/sec
Keyboard
Manual
Magnetic Tape
6,000 digits/sec
USAF WADe
Media
Speed
IBM Cards
200 cards/min
1,600 - 10 digit words/min
Auxiliary Tape
400 words/sec 10 digit words
Paper Tape
540 char/sec optical rea.der
Keyboard
Manual
Specialized Inputs
Low Speed Mag Tape
16 par/sec
on line
High Speed Mag Tape 400 par/sec off line to Electrodata tape
Dots Converter Tape
70 par/sec
on line

Photo by Convair, Pomona, California
Arma
Media
Paper Tape
IBM Cards
Flexowriter

Speed
540 char/sec Photoelectric reader
100 cards/min Via IBM Type 523
10 char/sec Commercial Control
Equip

Cal Res Corp
IBM Cards
200 cards/min 7 or 8 words/card
Paper Tape
500 char/sec 50 words/sec
Convair
Punched Paper Tape Max 520 char/sec
Photoelectric reader
IBM Cards
200 cards/min IBM 528 Card Reader
Keyboard
Manual
Magnetic tape can be used as input to the computer.
(No off-line cards or paper tape to magnetic tape
equipment) .
Dow Chemical
Punched Cards
100 cards/min
Paper Tape
540 digits/sec
Magnetic Tape
2.5 millisec/word
Great Lakes Pipe Line
100 cards/min
Cards (IBM 514)
20 dig/sec
Pa:;>er Tape
(Flexowriter)
Paper Tape
600 dig/sec
Manual
Socony - Dallas
Paper Tape
540 digits/sec Photoreader
Magnetic Tape
6,000 digits/sec
Cards (IBM)
133 digits/sec Use IBM 514
Keyboard
Manual
Compatible magnetic tape prepared by off-line A~D
converter.
111

Socony - Paulsboro
Media
Speed
Punched Cards
200 cards/min IBM 528
Magnetic Tape 2,300 microsec/word Searching, reading
or writing
United Gas
Paper Tape (mechanical reader) 10 Char/sec
Paper Tape (photo reader)
540 dig/sec
Keyboard
Manual
Cards (IBM 528)
266 dig/sec
Magnetic Tape
6,000 dig/sec
Input not buffered.
Purdue
Paper Tape
500 Char/sec
Cards
200 cards/min
80 column card

OUTPUT
Manufacturer
See Burroughs 205 for further details.
U. S. Army OTAC
Media
Speed
High Speed Punch
60 Char/sec
Flexowriter
10 char/sec
12 D-A Converters
Digital Plotter
Off line
The off line Flexowriters are available for creating
printed copy from high speed paper tape output.
The D-A Converters permit 12 channels of digital
information to be presented as analog voltages. The
principle use of the D-A Converter is for presenting
input data to the analog computer.

BURROUGHS 204

Photo by Dow Chemical Company
U. S. N. Air
Media
Typewriter
Paper Tape
Magnetic Tape
USAF WADe
IBM Cards
100
rrabular
150
Paper Tape
9
Auxiliary Tape

Test Center
Speed
10 char/sec
60 char/sec
6,000 char/sec
cards/min
800 - 10 dig words/min
lines/min 1,200
10 dig words/min
char/min
Immediate process

Arma

On Line Printer 150 lines/min IBM Type 407
Cards (IBM)
100 cards/min IBM Type 523
Paper Tape
Burroughs Equip
60 char/sec
Flexowr1.ter
Commercial Controls
10 char/sec
Equip
Cal Res Corp
Flexowriter
10 char/sec
Paper Tape
60 char/sec
IBM Cards
100 cards /min
IBM 407 Printer
150 lines/mj.n
7 or 8 words per card.
Convair
Paper Tape
60 char/sec
Teletype Punch
Cards
100 cards/min IBM 528 Card Punch
Printer
150 lines/min IBM 407 Line Printer
Flexowriter
10 char/sec
Magnetic tape can be used as output from the computer. (No o~~-line cards or paper tape to magnetic tape
equipment. )

BURROUGHS 204

112

Dow Chemical
Cards
100 cards/min
Printer
100 lines/min
Paper Tape Punch
60 digits/sec
Great Lakes Pipe Line
Cards (IBM 514)
100 cards/min
Flexowriter (typewriter) 20 digits/sec
Paper Tape (Flexowriter) 20 digits/sec
Socony - Dallas
Printed Page
200 dig/sec Use on line IBM 407
Printed Page
10 dig/sec On or o~~ line Flexowriter
Paper Tape
10 dig/sec Friden tape punch
Cards
133 dig/sec Use IBM 514
Continuous
33-166 pOints/sec Use D ~A converter
Curve Plot
and high speed recorder
F.M. Analog
250 samples/sec Use D ~A converter
Tape
and computer controlled
F.M. tape recorder
Socony - Paulsboro
Punched Cards
100 cards/min
IBM 528
United Gas
Typewriter
10 dig/sec
Paper Tape
20 dig/sec
Magnetic Tape
6,000 dig/sec
Cards (IBM 528)
135 dig/sec
Printer (IBM 407)
200 dig/sec
Output not b~~ered.
Purdue
Paper Tape
60 char/sec
Cards
100 cards/min 80 col. card
Typewriter (Flexowriter) 10 numeric Char/sec
5 alpha Char/sec

Photo by United Gas Corporation

CI RCU tT ELEMENTS OF ENTI RE SYSTEM
Manufacturer
See Burroughs 205 for further details.

CHECKING FEATURES
Manufacturer
See Burroughs 205 for further details.

POWER, SPACE, WEIGHT, AND SITE PREPARATION
Manufacturer
See Burroughs 205 for further details.
U. S. Army OTAC
Power, computer
19.2 Kw
21.2 KVA
0.9 pf
Power, air cond
15.4 Kw
20.5 KVA
0.75 pf
Volume, computer
388 cu ft
Volume, air conditioner
188 cu ft
Area, computer
133 sq ft
Area, air conditioner
25 sq ft
Room Size, computer
30 ft x 22 ft
Room size, ai~conditioner
4 ft x 15 ft
Floor loading
50 lbs/sq ft
Capacity, air conditioner
25 Tons
Weight, computer
7,295 lbs
Weight, air conditioner
2,596 lbs
Air conditioner: One 10-ton unit and one 15-ton
unit. Raised floor to facilitate routing of electrical connectors. Installation of power distribution
boxes, etc. Temperature and humidity control (air
conditioning)~ Lighting and acoustic ceiling.

113

U. S. N. Air Test Center
Power, computer
26.5 KVA
Power, air conditioner
9.7 Kw
Volume, computer
427 cu ft
Volume, air conditioner
142 cu ft
Area, computer
79 sq ft
Area, air conditioner
18 sq ft
Room Size, computer
19 ft x 23 ft
Floor loading
130 lbs/sq ft
Capacity, air conditioner
10 Tons
Weight, computer
7,130 lbs
Weight, air conditioner
2,400 lbs
Computer housed on second floor with wiring ducted
under floor (no ceiling under second floor). MOtor
generator installed outside of building. Air conditioner housed in off-set from computer room.
USAF WADe
Power, computer
20.39 Kw 22.66 KVA
0.9 pf
Power, air cond
13.19 Kw 12.65 KVA
0.9 pf
Volume, computer
615.32 cu ft
Volume, air conditioner
436 cu ft
Area, computer
124.43 sq ft
Area, air conditioner
72 sq ft
Room size, computer
18 x 30 x 14 ft
Room size, air conditioner
15 x 15 x 15 ft
Floor loading
102 lbs/ sq ft
Capacity, air conditioner
15 Tons
Weight, computer
8,534 lbs
Weight, air conditioner
4,000 lbs
Insulation, sound-proofing, platform floor, boarded
up outside windows, power in conduit under flooring.
Temperature and humidity control.

BURROUGHB 204

Arma
0.8 pf
Power, computer
35 KVA
Power, air conditioner
29.8 Kw
Volume, computer
11,106 cu ft
l'trea, computer
473 sq ft
Room size, computer
36 ft x 37 ft
Floor loading
130 lbs concen max sq ft
Capacity, air conditioner
40 Tons
Weight, computer
17,650 lbs
3/16 inch masonite base covered with Kentile flooring; false ceilings; wall partitions, fluorescent
Lighting, channels in floor for electrical connectors
::md cabl,ing, steel superstructure for mounting air
conditioning unit.
Cal Res Corp
20 KVA
Power, computer
Volume, computer
530 cu ft
102 sq ft
Area, computer
Room size, computer
20 ft x 35 ft
Floor loading
130 Ibs/ sq ft
~,815 Ibs concen max
Weight, computer
10,405 Ibs
False floor 4 feet above regular floor to provide
plenum chamber, cable ways, and at the same time to
make floor level with adjacent offices. Entrance
and exhaust air ducts installed. Motor generator
set installed in basement. Building air conditioning
system used.
Convair
Power, computer
37.5 KVA
Power, IBM 407 & 528
3.7 KVA
Power, air conditioner
19.8 KVA
Volume, computer
410.5 cu ft
100.0 cu ft
Volume, IBM 407 & 528
Volume, air conditioner
378.0 cu ft
Area, computer
78.5 sq ft
Area, IBM 407 & 528
25.0 sq ft
Area, air conditioner
54 sq ft
Eoom size, computer
800 sq ft
Floor loading
200 Ibs/sq ft
250 Ibs/sq ft concen ma.x
Capacity, air conditioner
14 Tons
Weight, computer
7,867 Ibs (Exclud IBM Equip)
Weight, IBM 407 & 528
4,716 Ibs
Weight, air conditioner
2,400 Ibs
Trenches were cut in floor (concrete) for cables.
Steel plates cover trenches. 2-10 ton air conditioning units to supplement main system were installed
and ducting rerouted.
Dow Chemical
Power, computer
20 Kw
20 KVA
1.0 pf
Power, air cond
13.5 Kw
15 KVA
0.9 pf
Volume, computer
675 cu ft
Volume, air conditioner
105 cu ft
Area, computer
134 sq ft
Area, air conditioner
15 sq ft
Floor loading
20 Ibs/sq ft
215 Ibs concen max
Capacity, air conditioner
15 Tons
Weight, computer
13,000 lbs
Weight, air conditioner
1,5001bs
Attic painted with fire resistant paint.
Socony - Dallas
Power, computer
35.0 KVA
Volume, computer
181 cu ft
Area, computer
37 sq ft
Room size, computer
870 sq ft
Floor loading
14.9 Ibs/sq ft
704 Ibs concen max
Weight, computer
13,000 Ibs
Computer room is 29 ft x 30 ft with acoustical
treatment of ceiling and walls. Interconnecting

BURROUGHS 204

114

cables suspended in trays beneath rubber tile covered
concrete floor. Room has temperature and humidity
controls. Power distribution made in accordance
with manufacturer's recommendations. Air conditioner
is main building system with special controls.
Socony - Paulsboro
Power, computer
46 KVA
0.90 pf
Power, air conditioner
10 KVA
0.85 pf
Volume, computer
540 cu ft
Volume, air conditioner
105 cu ft
Area, computer
95 sq ft
14 sq ft
Area, air conditioner
Room size, computer
24 ft x 20 ft
Room size, air conditioner
5 ft x 12 ft
Floor loading
90 Ibs/sq ft
130 Ibs concen max
Capacity, air conditioner
10 Tons
Weight, computer
8,700 Ibs
Weight, air conditioner
3,000 Ibs
No special site preparations.
United Gas
29 KVA
Power, computer
Volume, computer
181 cu ft
Volume, air conditioner
105 cu ft
Area, computer
28 sq ft
Area, air conditioner
15 sq ft
Room size, computer
24 x 31 ft
Room size, air conditioner
Not housed separately
Capacity, air conditioner
22 Tons
Weight, computer
4,000 Ibs
Weight, air conditioner
2,800 Ibs
Cable raceways were installed. Air conditioner is
a ArkLa Servel DUT water chiller. Energy source low pressure steam at 464 Ibs/hr. Heat input 450K
BTU per hour.
Purdue
Power, computer
22 Kw
23 KVA
Power, air condit 10 Kw
11 KVA
Volume, computer
560 cu ft
Volume, air conditioner
72 cu ft
Area, computer
80 sq ft
Area, air conditioner
12 sq ft
Room Size, computer & A/C
760 sq ft
Floor loading
600 Ibs/ sq ft
Capacity, air conditioner
10·Tons
Weight, computer
6,000 Ibs
Weight, air conditioner
1,000 Ibs
A trench was cut in the concrete floor for the
connecting cables. All air conditioner ducting and
power conduit was run exposed. Storm windows were
installed.

PRODUCTION RECORD
Manufacturer
See Burroughs 205 for further details.

COSTv PRICE AND RENTAL RATES

u. s.

Army OTAC
The Burroughs 204 Computer, console, high-speed
punch, :photo electric reader, and Flexowriter cost
$150,000.
The magnetic tape control and storage units cost
$50,000; the floating point unit cost $21,000; the
data plotter cost $9,000; and the tape perforator
and verifier cost $4,000.
Maintenance (contractual and inhouse) cost $55,000
per year.

Dow Chemical
The total basic system cost $242,775 and the rental
is $7,702/month.
Do own maintenance and servicing.
Socony - Dallas
Model 204 Computer with power control, control console, photoreader, paper tape punch, Flexowriter,
format control, magnetic tape control, 1 tape transport, keyboard cost $169,000.
Model 500 Punched Card Converter, floating point
control, 2 tape transports, external switch and output selector purchased for approximately $68,200.
IBM 407 rental approximately $900/month. IBM 514
rental approximately $125/month.
Maintenance and modification performed by Secony
Mobil.
Socony - Paulsboro
Burroughs 204, Model 500 Punched Card Converter
cost $156,000.
Model 543 Tape Control, Model 544 Datareader, Model
360 Floating Point Control cost $58,000.
Model 544 Datareader rents for $4,500/year.
Maintenance, including parts, is $21,000/year.
United Gas
204 Computer
500 Punch Card Converter
406 Console
543 Tape Control
446 Typewriter Console 360 Fl. Point Control
458 Flexowriter
2-544 Datareaders
420 External Switch
1-560 DataFile
Total cost is $275,105.
The IBM 407, IBM 519, IBM 077, IBM 026, IBM 010,
IBM 528, IBM 083, IBM 548, and IBM 056 rent at
$2,000/month.
Purdue
The computer, console, typewriter control unit cost
$139,000.
The 500 Card Converter, two tape transports and
tape control unit cost $70,000.
Maintenance cost $17,000/year.

U. S. N. Air Test Center
204 Burroughs
402 Console
446 Typewriter Console
458 Modified Flexowriters
543 Tape Control
544 Data Readers
360 Floating Point Control
466 High Speed Tape Punch
Total cost is $227,000.
Maintenance cost is $17,800/year.
USAF WADe
Central computer, console, Flexowriter, and phototape reader cost $139,582.
.
The card converter and magnetic tape cost $74,670.
The IBM 407 and 528 rents at $12, 466/year.
The IBM 519, 024, 523, and 031 rent at $5, 292/yr.

1
1
2
3
1
2
1
1

Arma

The basic computer and power control unit cost
$119,200.
Computer Console
8 Tape Units
Code Converter
1 Datafile
3 Flexowriters
Floating Point
Tape and Control Unit 2 Tape Preparation Units
Punch Card Converter
Total cost of additional equipment is $232,000.
2 IBM Type 523 rent at $187/month, and 1 IBM Type
407 rents at $880/month.
$1.1-2,000/yr. full two shift coverage maintenance
contract.
Cal Res Corp
The 204 Computer, card converter, console, typewriter, floating point unit cost $178,000.
Paper tape reader and punch cost $8,000.
On Burroughs equipment, the maintenance cost
$1, OlO/month.
Convair
Basic System
Digital Computer No. 204
$119,200
Control Console No. 409
11,231
Typewriter Control Unit No. 446
4,560
Flexowriter No. 458
3,135
Keyboard and Reader No. 454
1,500
Total Cost
$139,626
Auxiliary & Additional Equipment
Magnetic Tape Control No. 543
$18,560
2 Magnetic Tape Storage No. 544
29,350
Miscellaneous additional equipment
20,740
Spares Kits
6,453
Digital to Analog Converter
4,950
Flexowriter
3,135
Plotting Board 11" x 17"
1,925
Floating Point Control Unit w/spares
19,528
600
Paper Tape Reader
Photo Reader Assembly
4,180
Total Cost $109,421
Basic System
2 IBM No. 026 Printing Card Punch
$138 .30
at $69.15
1 IBM No. 063 Card to Tape Punch
99.00
1 IBM No. 082 Sorter
60.50
1 IBM No. 407 Alphabetic Accounting Machine 912·50
1 IBM No. 519 Document Originating Machine
295.00
1 IBM No. 528 Accumulating Reproducer
25 8 .60
1 Burroughs/EDC No. 500 Card Converter
481.95
1 Burroughs/EDC No. 544 Magnetic Tape
318.75
Storage
Total MOnthly Rental
Additional Equipment
2 IBM No. 066/068 Card Transceiver
Total Monthly Rental
$429.00

PERSONNEL REQU I REMENTS
Manufacturer
See Burroughs 205 for further details.
U. S. Army OTAC
One 8-Hour Shift
Used
Recommended
Supervisors
1
1
Analysts
5
5
Coders
1
Technicians
1
1
One additional technician is used for the second
and third 8-hour shift. Production problem runs are
performed during the second shift utilizing maintenance technicians whenever possible as input-output
operators. The third shift is used for machine
maintenance only.
Operation tends toward closed shop.
Methods of training used include on-the-job training
and facility training courses in machine coding and
programming.
U. S. N. Air Test Center
One 8-Hour Shift
Used
Recommended
Supervisors
1
1
Analysts
1
2
Programmers
8
8
Coders
3
3
The primary duty of those listed as programmers
is the reduction of data from film and oscillograph
records. These personnel are rated as mathematicians
or mathematics aids. The programming they do is to a

115

BURROUGHS 204

large extent directly related to their assigned data
reduction tasks. The training they receive in programming is that which is available from the computer
:rna,nufacturer.
Operation tends toward open shop.
USAF WADC
One 8-Hour Shift
Supervisors
1
Analysts, Programmers & Coders
6
Operators
1
Engineers
2
'rechnicians
2
In-Output Operators
1
Work 2nd shift approximately 1/4 of year. Split
up personnel for this. Mostly production type work.
Operation tends toward closed shop.
Formal training provided by Burroughs and IBM and
"on-the-job" experience.

Operation tends toward open shop.
Methods of training used are manufacturer's training and internal on-the-job training.
So cony - Dallas
One 8-Hour Shift
Supervisors
2
Analysts
7
Programmers
3
Technicians
5
The above entries must be taken with a grain of
salt for two reasons:
We have never been organized under the usual
class system. Supervisors are analysts, analysts
program and operate the computer, operators program,
and programmer's operate.
With the above personnel we also use about 10
hours a week of 704 time in the Socony·New York
Computing Center.
Operation tends toward closed shop.
Methods of training used includes maintenance
courses offered by manufacturer, programming courses
offered within the group, and on-the-job training.
Socony - Paulsboro
One 8-Hour Shift
Used
Recommended
Supervisors
1
1
Analysts, Prog. & Coders
Variable
Clerks
3
3 or more
Operators
1
1
1
Technicians
1
Operation tends toward closed shop.
Methods of training used are on-the-job training,
no formal classes.
United Gas
One 9-Hour Shift
Used
Recommended
Supervisors
1
1
Analysts & Programmers
2
4
Operators
3
3
Engineers
2
2
Operation tends toward open shop.
Methods of training used are on-the-job and informal classroom.
Purdue
Three 8-Hour Shifts
Supervisors
1
Analysts, Programmers & Coders
7
Clerks
1
Operators
5
Engineers
1
Technicians
2
Operation tends toward open shop.
Methods of training used are lectures and labs.

Arma

Two 8-Hour Shifts
Used
Recommended
Supervisors
1
2
Analysts, Program & Coders 12
14
Operators
2
2
In-Output Operators
1
2
Operation of this system is supplemented by an
average of 30 hors/month IBM Type 704/709 time.
Portion of personnel whose effort applies directly
to this system varies from time to time. Above figures represent total personnel for all digital computer programming and operation.
Operation tends toward closed shop.
Methods of training used is in-plant training by
senior personnel.
Cal Res Corp
One 8-Hour Shift
S~~rtwrs
1
Analysts, Programmers
3
Coders
3
Clerks
1
Operators
2
Above figures are about right for mature organization.
Operation tends toward closed shop.
Methods of training used are vendor training programs and on-the-job training.
Convair
One 8-Hour Shift 1vo 8-Hour Shift
Supervisors
1
Analysts
8
Programmers
8
Coders
2
Clerks
1
Operators
1
1
Engineers
1
1
Technicians
1
1
In-Output Operators
1
1
Operation tends toward closed shop.
Methods of training used are self study and work
experience with senior personnel.
Dow Chemical
.
One 8-Hour Shift
Supervisors
1
Analysts
1
Clerks
1
Engineers
1
Operation tends toward open shop.
Methods of training used is on-the-job training.
Great Lakes Pipe Line
One 8-Hour Shift
Supervisors
1
Analysts
1
Programmers
2
Operators
1
BURROUGHS 204

RELIABILITY, OPERATING EXPERIENCE,
AND TIME AVAILABILITY
Manufacturer
See Burroughs 205 for further details.
U. S. Army OTAC
Good time
90 Hours/Week (Average)
Attempted to run time
100 Hours/Week (Average)
Operating ratio (Good/Attempted to run time) 0.90
Above figures based on period 1 Jan 59 to 31 Dec 59
Passed Customer Acceptance Test
Jul 56
Time is not available for rent to outside organizations.

116

U. S. N. Air Test Center
Figures based on period 1 Feb 56 to 31 Mar 60
Passed Customer Acceptance Test Jan 56
Operating experience is kept on a monthly basis.
The figures below are monthly averages:
Production
91. 5 Hours
Program Check
44.1 Hours
Idle
15.7 Hours
Down
18.4 Hour s
Demonstration
0.4 Hours
Time is available for rent to outside organizations.
USAF WADe
Good time
43.10 Hours/Week (Average)
Attempted to run tDue
45.34 Hours/Week (Average)
Operating ratio (Good/Attempted to run time) 0.951
Above figures based on period 1 Jan 58 to 1 Jan 60
Passed Customer Acceptance Test
Jan 56
Time is not available for rent to outside organizations.
Arma
76 Hours/Week (Average)
Good time
Attempted to run time
80 Hours/Week (Average)
Operating ratio
0.95
Above figures based on period from Aug 59 to Aug 60
Passed Customer Acceptance Test
Mar 57
Time is not available for rent to outside organizations.
2 shift operation.
Cal Res Corp
Average error-free running period
8 Days
38 Hours/Week (Average)
Good time
Attempted to run time
40 Hours/Week (Average)
Operating ratio
0.96
Above figures based on period from 56 to 60
Passed Customer Acceptance Test 16 Jul 56
Time is available for rent to qualified outside organizations.
Convair
Good time
81 Hours/Week (Average)
Attempted to run time
85 Hours/Week (Average)
Operating ratio
0.953
Above figures are based on period from Jan 59 to Jan 60
Passed Customer Acceptance Test
Jan 56
Time is available for rent to qualified outside organizations.
Dow Chemical
Good time
33 Hours/Week (Average)
Attempted to run time
35 Hours/Week (Average)
Operating ratio
0.95
Above figures based on period from Feb 60 to Aug 60
Passed Customer Acceptance Test
Feb 60
Time is not available for rent to outside organizations.
Great Lakes Pipe Line
Operating ratio
0.90
Above figure based on period from Jan 59 to Jun 60
Passed Customer Acceptance Test
Oct 56
Time is not available for rent to outside organizations.
Socony - Dallas
Figures based on period from 15 Mar 55 to 31 Mar 60
System is operated on basis of all up or all down
including input/output devices. System has been
moved and has had extensive field modification. Entire system is checked out each day prior to use.
Records for system time are kept as follows:
Test routines (for system checkout)
601 Hours
Scheduled maintenance
1,882 Hours
Unscheduled maintenance
781 Hours
System modifications
1,158 Hours
Good operation
12,274 Hours
Time is not available for rent to outside organizations.

li7

Socony - Paulsboro
Average error-free running period
2 Hours
Good time
30 Hours/Week (Average)
Attempted to run time
34 Hours/Week (Average)
Operating ratio
0.882
Above figures based on period from Jan 59 to Jan 60
Passed Customer Acceptance Test Dec 54
Time is not available for rent to outside organizations.
United Gas
Good time
47 Hours/Week (Average)
Attempted to run time
52 Hours/Week (Average)
Operating ratio
0.904
Above figures based on period 1 Jan 56 to 1 Aug 60
Passed Customer Acceptance Test
Dec 55
Time is not available for rent to outside organizations.
Purdue
Average error-free running period
15 HOurs
Good time
130 Hours/Week (Average)
Attempted to run time
140 HourS/Week (Average)
Operating ratio
0.93
Above figures based on period from Jun 59 to Apr 60
Passed Customer Acceptance Test
Jan 55
Time is available for rent to outside organizations.

ADDITIONAL FEATURES AND REMARKS
Manufacturer
See Burroughs 205 for further details.
U. S. Army OTAC
Outstanding features are ability to use the digital
computer for data input to the analog computer and
digital plotting board for direct off-line plotting
of problem variableB as required.
Adopted procedures for magnetic tape labelling,
storage, shipping, and protection from humidity,
temperature and physical, electrical, fire, or other
damage include:
Programmers collectively maintain the necessary
tape files. Special precautions are not exercised
or required to protect tape files.
U. S. N. Air Test Center
Outstanding feature is the index register, decimal
number system, capability of expansion of features,
and floating and fixed point arithmetic.
Tape is used largely for storing programs and intermediate results of computation. Small quantities of
tape are required. Tapes which will in the near
future be prepared from automatic data gathering
systems will be property of other groups and storage
of tape reels will not be required.
USAF WADe
System is used for conversion of specialized tape
inputs, for editing volume data and for computation
as required by presentation form; converSion, editing
and computation in one system.
Magnetic tapes are stored under temperature and
humidity control, and are labeled and stored in a
steel cabinet.
Anna

Magnetic tapes are identified by "stick-on" labels,
stored in plastic containers, which in turn are
stored in metal tape cabinets.
Convair
Outstanding features are alphabetic input via
punched card converter; time clock (prints run time
on paper tape); B + n modification (permits increasing index register by any number); and Bl ~4 and
change control (makes the 4000 loop in memory as
usable as the 7000 loops). A second paper tape reader

BURROUGHS 204

has been installed to monitor computer operation
during unattended operation.
Tape handling:
Plastic cases for each reel of tape are used.
The reels are then stored in a steel cabinet. The
cabinet is in the computer room which is temperature
and humidity controlled.
Socony - Dallas
Outstanding features are versatile input-output
:3ystems, an extensive command structure, on line
curve output, F.M. analog magnetic tape output,
and added commands.
United Gas
Unique system advantages are addressable magnetic
tape blocks; modified logic to allow incrementing
and decrementing of index register by integers in
the range: 001 < integer < 1000; modified photoreader logic to allow input from special magnetic
tape reader; and modified Model 500 Punched Card
Converter to permit 120 alphanumeric characters per
line on IBM 407.

INSTALLATIONS
U. S.A:rmy Ordnance Tank-Automotive Command
R & E Directorate, Research Division
Detroit Arsenal
Detroit 9, Michigan
U. S. Naval Air Test Center
Armament Test
Patuxent River, Maryland
U. S. A. F. Wright Air Development Center
Alr Research and Development Command
Digital Computation Branch (WWDCD)
Wright-Patterson Air Force Base, Ohio
American Bosch Arma Corporation
Arma Division
Garden City, New York
California Research Corporation
527 Standard Avenue
Richmond, California
Convair
Division of General Dynamics Corporation
P. O. Box 1011
Pomona, California

FUTURE PLANS
u.

S. .Army OTAC
Installation of necessary equipment to permit rapid
reduction of analog tests data collected in the
field and laboratories.
U. S. N. Air Test Center
Need increased printing speed; medium, but not high
speed.
USAF WADe
Digital Computation Branch, now in control of this
facility, will acquire an IBM 7090 Computer System
and shift the computing now done on the Burroughs
204 to the new 7090 System. The 204 will then be
surplused or used as a data converter, editor, and
data handling facility.

Dow Chemical Company
Texas Division, Plant A
Freeport, Texas
1~e

Great Lakes Pipe Line Company
P. O. Box 2239
Kansas City, Missouri
Socony Mobil Field Research Laboratory
Applied Mathematics Section
P. O. Box 900
Dallas 21, Texas
Socony Mobil Oil Company, Inc.
Research Department
Paulsboro Laboratory
Paulsboro, New Jersey

Arma

No changes in this system are presently contemplated.
Arma will continue to use this system, supplemented

as required by additional time on the IBM Types 704,
709, 7090 Computers, purchased from subcontractors'
facilities. At such time when the total cost of
all digital computer operations becomes large enough
to economically justify the acquisition of a large
computer, Arma will acquire such a computer, and
return the Burroughs system to the U. S. Air Force.
Convair
Anticipated modifications:
Provide capability for 8 level binary input/output.
New systems:
Data tra~smission to and from San Diego over leased
telephone lines. Present IBM units will eventually
be replaced by units capable of higher capaclty
(speed) .
Socony - Paulsboro
Present plans are to dlspose of the computer and
transfer the present work load to a larger computer
within the company, using an TI3M transceiver with a
24-hour telephone line.
Purdue
The Sperry Rand Corporation will install a Univac
Solid State 80 Computer with magnetic tape adjacent
to our existing facility.

BURROUGHS 204

United Gas Corporation
Research Laboratory
P. O. Box 1407
8015 St. Vincents Avenue
Shreveport, Louisiana
Purdue University
Computing Laboratory
ENAD

W. Lafayette, Indiana

ll8

119

BURROUGHS 204

BURROUGHS

205

Burroughs Model 205 Electronic Data Processing System

MANUFACTU RER
Burroughs Corporation

Photo by Burroughs Corporation

APPLICATIONS

inventory, work load and payroll.
U. S. Navy Hydrographic Office
Located FOB No.3, Room 1770, Computation Division,
system is used for oceanographic computations for
sea water denSity, sound velocity, specific volume
and. dynfmic dept anomalies, stability and heat index,
ice prediction and power spectrum analysis, bathythermograph analysis such as thermocline characteristics,
average structure and classification, and naVigational computations for such systems as Loran, Lorac,
Rafos, Consolan, etc.
U. S. Navy Mine Defense Laboratory
Located at the U.S. Navy Mine Defense Laboratory,
Panama City, Florida, system is used for scientific
and engineering problems arising from research and
development work in naval mine and torpedo wa~fare;
statistical routines; warfare games; acoustic transmission; magnetic field computations; evaluation of
navigation systems, etc. Some time is devoted to
Laboratory accounting problems.
U. S. Naval Ordnance Laboratory
Located at the U.S. Naval Ordnance Laboratory, Corona,
California, system is used for analysis of production
and quality control of Navy missiles and missile systems, and for research, development, test and evaluation of Navy missiles and missile systems.

Manufacturer
System is designed specifically to cope with the
full range of electronic computing problems in the
fields of business industry, science and government.
U. S. Army Ballistic Missile Agency
Five systems used for missile research and development.
Army Rocket and Guided Missile Agency
Locat~d at the Test & Evaluation Lab, OML Division,
Bldg. 7437, the system is used for data reduction
and theoretical investigations.
U. S. Army Chemical Center
Mathematical research - chemical warfare (scientific)
U. S. Naval Shipyard, Boston
Hull deflection (elastic curve afloat), design division project control, hull deflection (in dry dock),
plan status report, design division workload (conversions), head loss in fluid piping, prediction of compartment noise levels, gantt charting drawing schedules, vendors drawings and manuals status report,
critical speed of rotors, voltage drop in circuits,
vent duct sizing, shock mount calculations, tank
capacity tables, shafting bearing reactions, pipe
stress, design drawing control and scheduling, pipe
system sizing, bearing wear down calculation,

BURROUGHS 205

120

Photo by U. S. Army Chemical Center
and guided missiles.
Arthur D. Little, Inc.
Located at 35 Acorn Park, Cambridge, Massachusetts,
system is used for payroll, labor cost distribution,
billing, budget analysis reports, statistical survey
analysis, inventory and production control simulations, pipe stress analYSiS, linear and dynamic programming development, ballistic missile trajectories,
and multiple regression analysis teChniques.
Atlantic Mutual Insurance Company
Located at 80 Pine Street, New York City, system is
used for account checking, cargo billing, premium
statistics, payroll cost allocation, budget experience, loss statistics, loss reserves, loss processing, premium billing, account analYSis, premium
reserve calculations, preparation of rating manual
on non-bureau auto policy, and calculation on premium earned by state.
Babcock & Wilcox Research Center, Alliance
Used for experimental data reductions, product design,
preliminary project analysis, and statistical eValuation of data.
Babcock & Wilcox Co., Lynchburg
System is located at 1201 Kemper Street, Lynchburg,
Va. and is used for nuclear studies, (one dimension,
criticality and lifetime calculations); thermal and
fluid dynamics, (one and two dimensional heat dif-

U. S. Naval Radiological Defense Laboratory
System is used for scientific problems pertaining to
fallout distribution, gamma ray penetration, ship
shielding, etc.
U. S. Navy Underwater Sound Laboratory
Applications are scientific and engineering calculations and scientific data processing.
Griffiss AFB, N. Y.
Located at Griffiss AFB, N.Y. (Rome Air Development
Center), system is used for statistical reporting
and scientific problem solution.
Ames Research Center, NASA
Located at the Ames Research Center, NASA, Moffett
Field, California, system is used for on-line windtunnel data reduction, off-line data reduction (windtunnel, flight, etc.) and scientific calculations'
(differential equations).
Allstate Insurance Co., Menlo Park, Sacramento,
and Atlanta
Used for policy issuance and accounting relative to
the policyholder. Policies are stored at random in
the datafiles for policy issuance and accounting.
Used also for consolidation of accounting and statistical work.
Aerospace Technical Intelligence Center
Located in Bldg. 828, Area A, WPAFB, OhiO, system is
used for performance calculations for aircraft and

121

BURROUGHS 205

Photo by the Boston Naval Shipyard
fusion, transient and steady state analysis of steam
generator, heat exchanger, etc); data reduction,
(experimental data corrected, normalized and correlated); kinetics{ (integration of systems of differential equations) and miscellaneous, (shielding,
structural, chemical, economic, statistical calculations) .
Burroughs Corporation, Computer FaCility
:Located at 460 Sierra Madre Villa, Pasadena, California, the system is used for debugging of programs
for manufacturer's customers, corporate data processing, and block time rentals to the public.
Celanese Chemical Company
Located at 520 Lawrence Street, Corpus Christi, Texas,
the system is used for chemical process analysis,
equipmen.t deSign, sales analysis, inventory control,
freight anaJ_ysis, and accounting.
Citizen Gas and Coke Utility
f.J()cated at 2020 N. Meridan Street, Indianapolis,
Indiana, the system is used for customer accounting
operation, including billing, maintenance of accounts
~eceivable, handling of cash, and all other items
necessary in maintenance of customers accounts
(160,000 accounts, payroll and materials control.
General Electric, Rome
Located in Rome, Georgia, the system is used for engineering design, drafting deSign, salary payroll,

BURROUGHS 205

]22

hourly payroll, general accounting reports, cost
accounting reports, employee benefits, issuance of
manufacturing paper, in.ventory control, and work
station loading.
General Insurance Company of America
Located in Seattle, Washington, at 434"r Brooklyn, the
system is used for rerating of automobile insurance
policies, preparation of agents commission statements,
preparation of sales and underwriting statistics,
preparation of expense distributions, allied accounting reports, and analYSis of claims experience.
International Telephone and Telegraph Laboratories
Located at 492 River Road, Nutley, New Jersey, the
system is used for scientific studies such as missile
trajectories, dynamic stability, miss distance, waveguide analysis, radar error analysis, quality control,
vibration studies, communication networks, rocket
design, etc.
Kaiser Steel Corporation
Located in Fontana, California, the system is used
for accounting (departmental cost statements), stores
(stock status, reorder notices), statistical analysis
(various), and miscellaneous engineering and research
studies.
Linde Company
Located at Tonawanda, New York, system is used for

Photo by the U. S. Naval Ordnance Laboratory, Corona
technical and scientific applications including thermodynamic properties and analysis, cryogenic engineering process and equipment design, structural design,
processing of experimental data, and operations research.
Louis Allis Company
Located at 427 East Stewart Street, system is used
for engineering designs of electrical motors and
motor components, payroll, accounts receivable and
payable, cost accounting, production control, and
other commercial applications. 25i usage is engineering and 75i usage is commercial.
Minnesota Mutual Life Insurance Company
Located at 345 Cedar Street, St. Paul 1, Minnesota,
the system is used for premium billing and accounting,
calculating dividends, loan interest, handling, company reserves, mortgage loans, calculating payments
and recording, supplementary contract calculations,
group proposals, and some scientific analysis (projection on mortality studies). MOst jobs require a
master record and then a periodic updating.
Northern Natural Gas Company
Located in the main office building of the Northern
Natural Gas Company at Omaha, the system is used for
calculation of gas measurement through monthly delivery statements, payment for gas purchase including
royalty interest payments, gas sales summaries for
billing, sales statistics and analyses, sales forecasting, gas supply prorations, pipe line design,
distribution network analysis, gathering system anal-

123

ysis, branch line calculations, and cost estimates.
Nuclear Development Corporation of America
JJOcated at Eastview, N. Y., the computer is used for
scientific computations of interest to the design of
nuclear reactors. On occasion, problems arising in
other fields are investigated. Little or no accounting work is done on this computer.
The Ohio Oil Company
Located at the Ohio Oil Company, Denver Research
Center, Littleton, Colorado, the system is used to
perform research on seismic interpretation methods,
secondary recovery techniques, fundamental studies
on fluid flow through porous media, reservoir analysiS, geologic exploration methods, refinery simulation and optimization, development of refining and
petro chemical processes, and new geophysical methods.
Pacific Power & Light Company
Located at Public Service Building, Portland, Oregon,
the system is used for customer billing and accounting, payroll, stockholders, sales analyses, rate
analyses, and engineering problems.
United States Steel Corporation
Located at the Research Center, MOnroeville, Pennsylvania, the system is used for computations for statistical analysis, computations for operations research
problems, simulation of processes, and design computations.
Western Electric Company, Inc. I
Located on the 1st Floor, 1600 Osgood Street, North
Andover, Massachusetts, the system is used for pay-

BURROUGHB 205

Photo by the U. S. Navy Mine Defense Laboratory
University of Denver
Located in Conrad Hall, Denver Research Institute,
the system is used for scientific and engineering
problem solution and education.
University of Virginia
Located in the Physics Building, University of Virginia, the system is for general University use.

roll and associated record keeping and reports, cost
accounting, payments to suppliers, credit union, and
scientific applications.
Western Electric Company, Inc. II
I~cated on the 1st Floor, 1600 Osgood Street, North
Andover, Massachusetts, the system is used for production control, component assembly analysis and
parts explosion, requirements forecasting, and storeroom inventory.
Westinghouse Research Laboratory
]~cated at the Westinghouse Research Laboratory,
Pittsburgh 35, Pennsylvania, the system is used for
scientific computation to solve research problems in
fields of math, physics, metallurgy, mechanics, etc;
simulation of special purpose control devices to imprive their design; statistical computations in
connection with design of experiments, analysis of
data, etc; and solution of problems in mathematical
economics.
University of Nebraska
Located in Nebraska Hall at the University of Nebraska, Lincoln, Nebraska, applications include engineering mechaniCS, chemistry and chemical engineering,
physics (cosmic rays, solid state, etc), and statistical analyses in the fields of Psychology, Sociology,
Animal Genetics, Agronomy, Educational Psychology,
etc.

BURROUGHS 205

PROGRAMMING AND NUMERICAL SYSTEM
Manufacturer
Internal number system
Binary coded decimal
Decimal digits/word
10 plus sign
Decimal digits/instruction
2 to 10
Instructions/word
1
Instructions decoded
83
Arithmetic system
Fixed and floating point
Instruction type
One address
Number range
Floating 10- 51 < N < 1049
Fixed +(1_10-10)" to'-_(l_lO-lO)
Instruction word format
S
+

-

l24

1

2
3
Control
Digits

4

6
5
Oper
Code

7

8

9

Address

0

Photo by the U. S. Navy Radiological Defense Laboratory
Arithmetic mode
Timing
Operation

Automatic built-in subroutines may include special
order of table lookup command.
Automatic coding includes Data Code 1, a compiler;
Star Assembly Routine; SAC Assembly Routine; Purdue
Compiler; Shell Symbolic Assembler; Tape Subroutine
Compiler; Shell-Bell Interpreter, etc.
Registers and B-boxes
Registers in the Burroughs 205 consist of the
A-Accumulator, capacity of 10 digits and sign which
holds arithmetic operand and result. The R register,
10 digits, acts as an extension of the A register
where necessary. D register, 10 digits and sign,
acts as distributor for transfers to and from storage.
C or Control Register, 10 digit register containing
command currently being executed. B Register, a four
digit register used for modification and tally. All
registers act as temporary high speed storage for
either arithmetic quantit1es or control.

°

STORAGE
Manufacturer
Access
Media
No. of Words No. of Digits Microsec
Magnetic Drum
4,080
40,800
850 (Quick)
Magnetic Tape
400,000
400,000,000 240,000,000
Datafile
2,000,000
20,000,000
24,000,000
Access time is for entire contents. Quick access
loops store 80 words, (four 20-word lOOps). Access
time can vary from 84 to 16,800 microseconds depending on position of drum at start of computer command.
Datafile is two channel tape, 10,000 addressable
blocks/channel, 20 words/block. Datafile gives random access search in either direction. Computation
continues suring search.
Magnetic Tape
10 Units
No. of units that can be connected
No. of char/linear inch of tape
200 Char/inch
Channels or tracks on the tape
12 Tracks/tape
Blank tape separating each record 0.38 Inches
Tape speed
60 Inches/sec

AR ITHMETI C UNIT
Add
Mult

Div

Manufacturer
Incl Stor Access
Micro sec
1,019 or 1,188
9,300 mean
12,680 mean

Serial
Synchronous
Sequential

Exclud Stor Access
Microsec
8,450 mean
11,830 mean

125

BURROUGHS 205

Photo by General Electric Company, Rome, Georgia
6,000 Char/sec
Transfer rate
168 Millisec
Start time
16 Millisec
Stop time
Average time for experienced
operator to change reel of tape
30 Seconds
Physical properties of tape
Width
0.75 Inches
Length of reel
2, 500 Feet
Composition
Plastic Base
Twelve channels are recorded across the width of
the tape. Of the twelve, only six are read or recorded at one time. The six channels are called a
lane. The six channels or one lane are interlaced
with those of the other lane. Each of the two lanes
has its own read-write head. 400,000 words are on
each reel of magnetic tape.
The followin~ installations utilize Magnetic Drum,
Data File (Bin), and Magnetic Tape:
BNS
USNOL Corona
Griffiss AFB

AIC

BURROUGHS 205

Burroughs
USS
WRL

'The following installations utilize Magnetic Drum
and Magnetic Tape:
USN MIlL
ITT
USN USL
NDCA
NASA ARC
OOC
ATIC W-P
PP & LC
Little
WE
GICA
The following installations utilize Magnetic Drum
and Data File (Bin):
MMLIC
WE
1be following installations utilize Magnetic Drum
only:
ABMA
ARGMA
,USA CC
USN HO Washington
USN RDIJ
AMIC
B & W Alliance
B & W Lynchburg

cee

126

CGG
GE Rome, Ga.
KSC
Linde
LA

NNG
U of N
U of D
U of V

Photo by the Linde Company
The following installations utilize Magnetic Tape
and Punched Cards as input media:

INPUT
Manuf'acturer
Media
Speed
Paper Tape
540 digits/sec
Keyboard
Manual
Magnetic Tape
6,000 digits/sec
Cards
400 digits/sec each reader
Up to seven card readers per system may be used.

AMIC
The following installations utilize Magnetic Tape
and Paper Tape as input media:
NDCA
WRL
The following installations utilize Paper Tape as
an input medium:

The following installations utilize Magnetic Tape,
Paper Tape, Punched Cards and usually have a Manual
Keyboard as input media (Paper Tape systems are high
speed photo-electric readers):
ABMA
ENS

GE Rome, Ga.
GICA

USN HO Washington
USN USL

NNG

AIC
Little
Burroughs

USS
USA CC
B & W Alliance
U of D
ITT
U of V
Linde
The following installations utilize Punched Cards
as an input medium:
B & W Lynchburg

LA

OOC
PP & LC
WE System I
WE System II

CGC
The following installations utilize High Speed
Paper Tape, Punched Cards, and M
1 Keyboard:
USN MDL
USNOL Corona
USN RDL

Griffiss AFB
NASA ARC
ATIC W-P

CCC
KSC
MMLIC

U of N

127

BURROUGHS 205

Photo by the Minnesota Mutual Life Insurance Company

OUTPUT

Burroughs (plus printer)
CGC (plus printer)
GE Rome, Ga. (plus printer)
GICA (plus printer)
NNG (plus printer)
OOC (plus printer)
PP & LC (plus printer)
WE System I (plus printer)
WE System II (plus printer)

Manu:facturer
Speed
Media
Electric Typewriter
10 char/sec
Punched Paper Tape
60 digits/sec
Magnetic Tape
6,000 digits/sec
Punched Cards
1,800 char/min
Printer
150 lines/min
Up to seven printers and/or punch card machines
may be inc.luded per system. Figures are given for
each unit. Units can be parallel for increased over
all speeds. Printer is an IBM 407 Tabulator.
The following installations utilize Magnetic Tape,
Paper Tape, Punched Cards and usualJ.y have an electric
typewriter as output media:
ABMA (5)
ENS

USN HO Washington (plus printer)
USN MOL (plus printer)
USNOL Corona (plus printer)
USN USL (plus printer)
Griffiss AFB (plus printer)
NASA ARC
ATIC W-P
AIC (plus printer)
Little (plus printer)

BURROUGHS 205

The following installations utilize High Speed
Paper Tape and Punched Cards:
USN RDL (plus printer)
CCC
KSC (plus printer)
MMLIC (plus printer)
U of N
The following installation utilizes Magnetic Tape,
Punched Cards and a Printer as output media:
AMIC

The following installations utilize Magnetj.c Tape
and Paper Tape as output media:

ITr
NOCA

USS
WRL

128

Photo by the Ohio Oil Company
The following installations utilize Paper Tape as
an output medium:
U of D
B & W Alliance
U of V
Linde

Address Register, Control Counter, and Shift Counter.
Inspection of the registers on the Control Panel
indicates the failure location. An alarm stops the
computer if the storage cell counted does not contain
all zeros at the start of each drum revolution. This
prevents information from being recorded on or read
from incorrect locations on the drum. An audible
alarm indicates excessive rise in exhaust air temperature in the computer cabinet. After a pre-set interval, up to 15 minutes, DC voltage will be shut off
if the temperature stays at or above a predetermined
level.
Optional:
The marginal voltage test panel facilities selective
lowering of voltages in registers and control section,
which, in conjunction with test routines, can detect
marginal components before they give trouble in actual
operation. Supervisory test panel on front of computer has extensive controls and check features, including access to any flip-flop for manual setting,
substitution of manual or low frequency pulse operation for the drum clock, aDd a switch panel which
allows maintenance personnel to force abnormal register behavior and to inhibit certain normal checking
functions for diagnostic purposes. Contents of all
registers are displayed simultaneously at all times.

The following installations utilize Punched Cards
as an output medium:
B & W Lynchburg (plus IBM 402 Tab)
LA (plus printer)

CI RCU IT ELEMENTS OF ENTI RE SYSTEM
Manufacturer
Type

Tubes
Diodes

Quantity
Approx. 1,202
Approx. 3,800

CHECKI NG FEATURES
Manufacturer
Fixed:
The Burroughs 205 automatically stops upon the
appearance of an unanticipated overflow. An alarm
light is turned on and computation is stopped by a
forbidden combination (binary-coded decimal digit
10 thru 15) in the A, B, D, and R Registers, the

129

BURROUGHS 205

Photo by the Pacific Power and Light Company

POWER, SPACE, WEIGHT, AND SITE PREPARATION
Manufacturer
Power, computer
l6.5 KVA
Volume, computer
l8l cu ft
Area, computer
28 sq ft
Weight, computer
3,l75 lbs
Special flooring is recommended for the Burroughs
205 System to handle the combined and individual
weight of the units and to accommodate the intercabling. Since all units of the system are designed
to have their cables enter from underneath their
cabinets, raceways or ducts in the floor are recommended to accommodate the inter-cabling. There are
three types of floors which have been found to be
completely satisfactory: (l) raised floor, (2) existing floor with built in cable raceways, and (3) existing floors with cables underneath enclosed in metal
conduit. The area should provide adequate lighting,
some acoustical treatment, communication equipment,
and convenience of access to the equipment. Tqe
power line should not be serving other heavy equipment which may generate excessive voltage fluctuation.
Vibration from such heavy machinery in the vicinity
of the system could shorten the life of certain sen-

BURROUGHS 205

l30

sitive components. There should be adequate space
to accommodate the necessary refrigeration equipment,
and the area should lend itself economically to complete air conditioning. Amount of air conditioning
depends upon size of computer system installed. For
every 12,000 BTU/hour generated by the system one
ton of refrigeration is recommended. Environmental
condition should also be taken into consideration.
The floor load in the computing center can range
from l75 to 200 lbs per sq ft and up to 250 per sq
ft under the power supply unit. The site selected
for the computing center must have a floor which can
support the combined weight of the system as well as
the l.ocalized weight at each leveling point on the
units.
ABMA (5) •
Power, computer
45 KVA
0.7 pf
31..5 Kw
ll,200 cu.ft
Volume, computer
700 sq ft
Area, computer
Room size, computer
700 sq ft
Capacity, air conditioner
l5 Tons
Weight, computer
l8,370 lbs

ARGMA
Power, computer
Power, air conditioner

22.7 Kw
l1..9 Kw

Photo by the United States Steel Corporation
Room size, computer
Floor loading

25 ft x 25 ft
92.75 Ibs/sq ft
822 Ibs concen max
Capacity, air conditioner
15 Tons
Site modification consisted of additional transformer for power, raised floor (locally constructed),
air conditioning mounted outside - piped in, and
building is of concrete construction.
USA CC
30 ft x 24 ft
Room size, computer
25 Tons
Capacity, air conditioner
False floor
ENS

Power, computer
52.78 Kw
Room size, computer
70 ft 6 in x 22 ft 5 in
Capacity, air conditioner
60 Tons
Existing room for EDPM required new suspended acoustical metal ceiling w/new fluorescent lighting system, new air conditioning system, diffusers, air return registers, plenum system built above ceiling,
new vinyl tile floor on existing concrete floor
w/recessed conduit chases serving machines. Existing brick walls repainted, new office partitions and
new masonry door openings and fire resistant doors
installed.

131

Existing room for air conditioners required new
interior partitions (movable), 2 new exterior double
doors, repainting, new concrete floor slab and equipment pads, exposed duct system with exterior wall
intakes and exhausts, and new lighting.
Power distribution: 400 ampere capacity, 120/208
volts, 3 phase, 4 wire.
USN HO Washington
114.7 I0lA at 208v
Power, computer
12.0 I0lA at 115V
42 ft x 30 ft x 11 ft
Room size, computer
8 ft x 10 ft x 10 ft
Room size, air conditioner
6 ft x 18 ft x 25 ft
Floor loading
175-200 Ibs/sq ft
250 Ibs concen max
The site preparations required prior to installation of the Burroughs 205 were raised flooring, the
building air conditioning system was "piped in" to
the computer room and supplemented by an additional
7 1/2 ton unit; and necessary power lines were brought
into the area. The building air conditioning system
is 125 tons capacity. It is estimated that the computer realizes only about 1/5 of the available cooling.

BURROUGHS 205

Photo by the Westinghouse Research Laboratory, Pittsburgh
USN MOL
Power, computer

15 KVA at 208V
1. 5 KVA at 120V
Room size, computer
1,040 sq ft
Capacity, air conditioner
23.5 Tons
Air conditioning supplied from central system with
additional capacity supplied in computer room. The
building in which the computer is located is a fireproof, block, steel, and concrete structure. Room
modifications were (1) one 208 power supply and 10
individual 120V supplies, (2) air conditioning ducts
installed at the ceiling around 2 walls with 10 exhausts, (3) a false floor was constructed over one
half the floor area raising the computer approximately 6 inches.
USNOL Corona
Power, computer
49.0 KVA
Power, on-line equipment
11.1 KVA
Room size, computer
132 1/2 ft x 28 1/2 ft x lOft
Room size, air conditioner
36 ft x 11 1/2 ft x 8 ft
16 ft x 20 ft x 8 ft
Site preparations included a secondary floor to
provide concealed power cable raceways and safety
for operating personnel, an air conditioning system,
including a small building for housing air compressors
and condensing coils, and power distribution panels

BURROUGHS 205

132

and conduit.
USN RDL
Power, computer
42 Kw
60 KVA
0.7 pf
Power, air condi 16.7 Kw
20.9 KVA
0.8 pf
Area, computer
135 sq ft
Room size, computer
22 ft x 48 ft
Capacity, air conditioner
15 Tons
Unit installed in open area of existing building.
Movable partitions, 15 ton air conditioner with duct
distribution system, humidifier, power distribution
system, and cable raceways were installed.
USN USL
Power, computer
30.4 KVA
Room size, computer
34 ft x 20 ft
Ploor loading
125 lbs/ sq ft
2,000 lbs concen max
CapaCity, air conditioner
20 Tons
Site preparation included shoring of floor to handle increased load, installation'of air conditioning,
and a separate power service.
NASA ARC
Area, computer
1,450 sq ft
Area, air conditioner
550 sq ft
Floor loading
260 lbs concen max
CapaCity, air conditioner
50 Tons
Figures are for 2 systems in one room. The com-

Photo by the University of Denver
puters are located on 2nd floor on 2 story concrete
building. Power distribution and computer cabling is
done through false ceiling of lower floor. As the
computing facility expanded, it was necessary to
install hoods on both main frames and vent the hot
exhaust through the ceiling.
ATIC W-P
Power, computer
15 Kw
Power, air conditioner
10 Kw
Capacity, air conditioner
20 Tons
A false floor was constructed. Cool air is fed
directly into the room.
Little
Power, computer
38.2 KVA
Power, air conditioner
5.0 KVA
Capacity, air conditioner
20 Tons
Installed on first floor of new building with waterproof raceways for power cables.
AMIC
Raised floor (plenum).
B & W Alliance
Power, computer
20.1 KVA
Room size, computer
25 ft x 22 ft
Floor loading
85 Ibs/sq ft
2,700 Ibs concen max
Room was provided by using movable partitions, floor
to ceiling. Floor was trenched for cables. Air conditioning system was installed with ducts above ceiling, supply plenum and return over computer, ceiling
diffusers over other components. Separate transformer installed for isolated power source. Building
stairs and floor were braced while moving computer
into the building.
B & W Lynchburg
Power, computer
41.3 KVA
Room size, computer
700 sq ft
CapaCity, air conditioner
15 Tons
False flooring and air conditioning were added ..
Burroughs
Power, computer
50.3 Kw
55.9 KVA
0.90 pf
Floor loading
175-200 Ibs/sq ft
250 Ibs concen max
False floor with normal air conditioning piped
through floor and ceiling.

133

CGC
Power, computer
50.2 KVA
Room size, computer
1,300 sq ft
Floor loading
110 Ibs/sq ft
CapaCity, air conditioner
36 Tons
An elevated floor (plenum for air to equipment),
false ceiling (to provide return for air power separated from general building), and air conditioning
chamber were added.
GE Rome, Ga.
56.4 KVA
Power, computer
CapaCity, air conditioner
22.5 Tons Overhead hung
Installed concrete floor 4.5 inches over existing
floor with ducts approximately 8 inches wide to
accommodate cables. Installed 3 air conditioning
units, 7.5 tons each. Installed one hunidity control
unit.
GICA
Power, computer
36.6 KVA
Room size, computer
26 ft x 36 ft
CapaCity, air .conditioner
25 Tons
Raise floor, put in cable troughs. Drop ceiling.
Enclose area in glass. Bring in 3 phase 230 power.

ITT
Power, computer
26.6 KVA
Room size, computer
20 ft x 30 ft
CapaCity, air conditioner 22 1/2 Tons
200 amp 208v 3 phase line. Raised floor with movable segments. 15 tons of recirculating air conditioning (7 1/2 tons already in room provides all
fresh air). Partitions separating computer, from
programmers. Twelve foot display window.
KSC
Power, computer
23 KVA at 208v
6 KVA at 115V
CapaCity, air conditioner
18 Tons
Used existing 1,100 sq ft frame stucco building
with concrete slab floor. Sealed all openings and
installed 1 7 1/2 ton roof air conditioner. 1 7 1/2
ton interior upright air conditioner and 1 3 ton window-type air conditioner-all refrigeration. Brought
in power from nearby heavy duty substation and installed transformer.

BURROUGHS 205

Linde
Power, computer
Room size, computer
Capacity, air conditioner

24.1 KVA
32 ft x 16 ft
10 Tons

LA.

Capacity, air conditioner
75 Tons
When building was built, a special 6 ft thick waterproof, floating type foundation was installed. A
motor-alternator was added for power constancy later.
A separate power line is being considered. Special
air conditioning facilities were designed.
MMLIC
Room size, computer
1,775 sq ft
False ceilings, raised vermicolite floor with builtin raceways, full air conditioning and power.
NNG

Power, computer
50 KVA
Room Size, computer
30ftx48ft
Capacity, air conditioner
25 Tons
Raised flooring (Bel Air) and new power supply
line were added.
OOC
Power, computer
22.4 KVA
Capacity, air conditioner
15 Tons
Room designed and constructed to house computer.
Room has poured concrete floor with crawl space beneath for cables, air conditioning ducts and motor
generator set. Conditioned air is fed directly to
main frame of computer and is exhausted into plenum
chamber in ceiling. The chilled water air conditioning unit is in a location separate from the computer
room.
PP & LC
Power, computer
76 KVA
Power, air conditioner
57 KVA
Room Size, computer
30 ft x 52 ft
Room size, air conditioner
30 ft x 30 ft
Capacity, air conditioner
25 Ton Units (2)
Put in 4 inch raised floor to provide space for
intercoIIDecting cables, etc. Installed air conditioning. Put in separate power circuit to help assure
constant voltage.
USS

Power, computer

24.2 KVA at 208v
5.7 KVA at 115V
Room size, computer
21 ft x 39 ft
Capacity, air conditioner
15 Tons 105,000 BTU/hr.
System installed in building recently erected to
house this and other research facilities. All requirements for computer installation were handled
during building design. False floor in computer
laboratory serves as plenum for air conditioning
system.
WE Systems I and II
Power, computer
49.0 KVA
Room size, computer
1,500 sq ft
Capacity, air conditioner
13.5 Tons used by computer
Figures are for each system. Site preparations
included building type (basement section of office
building - no modification to basic structure), ceiling (air conditioning input plenums installed in
center with cool air entering through perforations,
exhaust at periphery), and floor (8" raised floor
with ramp to normal level - accommodates all power
and component distribution cables) for each system.
WRL

Power, computer
28.8 Kw
32 J.0lA
8.8 KVA
Power, air condit
7.0 Kw
Room Size, computer
30 ft 6 in x 21 ft x 9 ft
CapaCity, air conditioner
15 Tons
Trenches were dug in the floor. MG set installed.

BURROUGHS 205

134

U of N
Power, computer
15 KVA
Capacity, air conditioner 11 1/2 Tons
False ceilings and cable raceways were installed.
Building is of reinforced concrete.
U of D
Power, computer
21.·5 KVA
CapaCity, air conditioner
10 Tons
Reinforced floor, false floor (air conditioning),
plenums (air conditioning), and separate power for
computer were installed.
U of V
Power, computer
21.0 KVA
Capaci'ty, air conditioner
12 Tons
Large area in basement of building was modified
to accept the computer, offices, etc.

PRODUCTION RECORD
Manufacturer
Number in current operation
Time required for delivery

112
4 months

COSTv PRICE AND RENTAL RATES
Manufacturer
Purchase
Price
$135,000

Computer, Model 205
Includes cabinet, plug-ins,
and 4080 word magnetic drum
memory wi th read-write heads.
Also includes Magnetic Electronic
Power Supply and Power Control Units.

Control Consoles
Include decimal keyboard, displays
of the computer registers, and
computer controls. (Control Console Model 406 or 409 is required
with a computer s~stem that includes Cardatron.)
Control Console, Model 406
ll~ ,210
Includes both a photo-electric
reader and a high speed punch
(60 characters per second).
Control Console, Model 409
Includes a photo-electric
reader only.

Monthly
Rental
$3,9 00

490

11,230

362

Control Console, Model 403
7,050
The photo-electric reader and
high~speed punch are not included.
Control Console, Model 402
13,270
Performs the same functions as
the Model 406, except that the
punch perforates paper tape at
the rate of 20 characters per second.

230

Consolette, Model 405
1,980
Includes decimal keyboard,
essential computer controls and
indicators, but does not include
displays of the computer registers.

70

Typewriter Control, Model 446
4,560
Usable with all consoles, the
typewriter control includes the
stand which supports the Flexowriter
and contains external format control
equipment and a relay translator.

137

423

Purchase
Price
Modified Flexowriter, Model 458 $ 3,135
Incorporates the correct code
for alphanumeric print-out under
computer control; both a tape
punch and a tape reader are attached
to the Flexowriter. The tape reader
may be used for a slow input to the
computer.

Monthly
Rental
$ 95

Tape Perforator & Verifier,
3,790
Model 454
Includes a decimal keyboard, tape
perforator, and tape reader. Used
to prepare, verify, or automatically
duplicate numeric, perforated tape.

133

Numeric Code Converter, Model 460 3,680
Provides conversion, digit by
digit, from one punched paper
tape code to another. Includes a
motorized tape reader, motorized
tape punch, and two matrix cards
(ElectroData to teletype and teletype
to ElectroData code).

110

Matrix Cards for other codes

395 ea

External Switching & Output
Selector, Model 420
4, 375
Permits the 500 Punched Card
Converter to operate with either
an IBM tabulator or summary punch
as selcted by computer programming.
External Switching, Model 421
2,890
Provides selective switching to
eight external sources as directed
by the computer program, but does
not include the output selector unit
for use with the 550 Punched Card
Converter.

Purchase
Price
$ 25,000

Datafile, Model 560
Multiple magnetic tapes for
data storage under control
of the Magnetic Tape Control,
Model 543 or 547. Includes
drive mechanism for 50 lengths
of tape (100 logical tapes),
partitioned bin, and read-write
heads. Tapes are brought out over
guide rods and the two recording
heads are servo positioned under
the selected tape.

Floating Point Control, Model 360 21,200
Provides automatic floating-point
arithmetic for the operations of
addition, subtraction, multiplication, and division.

725

Burroughs Line Printer, Model 289
For on-line use in the Burroughs 205 and 220 Cardatron Systems
Standard Features:
Immediate-access clutch
36,000
850
Two triple panel manual plugboards
Five 2-position pilot selectors
Eight 5-position co-selectors
Five 4-position Cardatron selectors
Two digit selectors
Twenty symbol selectors
One half-time emitter
Ten filters
Six carriage skipping channels and one overflow
channel
Pluggable zero and asterisk print control

15 ea
155

105

Optional Features:
Group of five 2-position pilot
selectors
Group of four 5-position coselectors
Group of ten symbol selectors
(maximum two groups)
Group of two digit selectors
Group of ten filters
Additional plugboard

Punched Card Converter, Model 500 18,625
Permits use, under computer control,
of an IBM sununary punch as input and an
IBM tabulator or gang punch as output.
Cardatron, Model 506
Control Unit & Auxiliary
31 ,000
Power Supply
22,500
Input Unit, Model 507
26,300
Output Unit, Model 508
(80 character)
Output Unit, Model 509
27,550
(120 character)
(maximum number of input/output
units: seven)
Permits simultaneous high-speed
communication between standard
punched card machines and the
205 Computer. Alphabetic, special,
and numeric characters may be intermixed in any manner.

Monthly
Rental
$ 825

770

Magnetic Tape Unit, Model 548
13,500
Reel-type magnetic tape storage,
includes read-write heads and tape
drive mechanism and operates under
control of magnetic tape control.

425

200

5

600

15

200
70
100

10
3

Standard Features:
Immediate-access clutch
5,800
Six 5-position co-selectors
Five 2-position Cardatron selectors
One digit emitter
One half-time emitter
One single panel manual plugboard

690

875

10

Burroughs Card Output Unit - Model 292
For on-line use in the Burroughs 205 and 220 Cardatron Systems

560
660

Magnetic Tape Control, Model 547 28, 000
Master control unit which provides
electronic control for any combination
of up to ten magnetic tape units and
Datafiles.

250

Optional Features:
Double punch and blank column
detection device (Group of 20positions-maximum four groups)
Offset stacker
Addi tional plugboard

740
225
50

150

16
10

Burroughs Card Input Unit, Model 293
For on-line use in the Burroughs 205 and 220 Cardatron Systems
Standard Features:
Immediate-access clutch
Five 2-position pilot selectors
Eight 5-position co-selectors
135

14,000

300

BURROUGHS 205

Two digit selectors
One half-time emitter
One single panel manual plugboard
Optional Features:
Group of five 2-position pilot
selectors
One additional digit selector
Additional plugboard

250

10

200
50

10

All prices are subject to change without notice.
Outline of lease policy
Basic monthly rental entitles the customer to a
maximum of one hundred and seventy-six (176) hours
of use time during each calendar month. Use time of
each system component in excess of one hundred and
seventy-six (176) hours will be chargeable at the
rate of forty percent of the hourly basic rental.
The hourly basic rental is 1/176th of the basic monthly rental. Extra use charges will be computed to the
nearest half hour.
Use time is defined as follows: "The time during
which each component is in operation exclusive of
preventive or remedial maintenance time. When components are inter-connected and programmed to operate
as a system, all such components shall be deemed to
be in use for the entire period when any part of the
system is operating. Components which are not included in a given program will not have use time accumulated against them even though the components are
inter-connected."
The rental rate is effective at or from the date
installation of the equipment is complete and remains
in effect thereafter until terminated by either party
upon ninety (90) days written notice. The lease
price includes personal property tax and insurance
coverage on the machines; all additional taxes are
paid by the lessee. Machines under lease may be purchased at any time at the prices in effect at the
time such option less a credit of forty percent of
all rental charges (excluding taxes) are paid on the
actual equipment purchased, provided that such credit
shall not exceed a maximum of sixty percent of the
purchase price in effect.
The 88/60.. Plan for Rental of Burroughs 205 Data ProceSSing Systems
The reduced rental charges applic able to system
orders under the provisions of this option will be
sixty per cent of the basic monthly rental charges
and will entitle the lessee to use the system up to
eighty-eight hours per calender month. Use of the
system in excess of eighty-eight hours per month shall
be subject to an extra charge at an hourly additional
use rate of one per cent of the regular monthly
charge.
Use time is defined as the time during which the
system or any components thereof is in operation,
exclusive of preventive or remedial maintenance time:
when system components are normally inter-connected
the sum of the regular monthly charges for these
components is to be taken as the regular monthly
charge for the system in determining the hourly
additional use rate.
The customer at his option may convert from the
88/60 rental plan to the normal one hundred and seventy-six hour rental plan. When this conversion is
made the customer may not revert to 88/60. Use of
the system for more than one hundred and twenty-eight
hours per month would make it advantageous for hint
to convert.
Burroughs will provide the necessary parts and service to maintain the equipment in good operating
condition as required during its regular business

BURROUGHS 205

136

hours, eight a.m. to five p.m., Monday through Friday
excluding holidays.
Burroughs 205 Data ProceSSing System may be of any
configuration, the 88/60 plan applies only to on-line
equipment. The tape perforaterand verifier model 454,
the numeric code converter model 460, and other similar equipment used off-line must be rented at normal
monthly rental rates. The Burroughs input-output
equipment, models 289, 292, and 293 are not offered
at reduced rental. Custom engineering devices on
which charge has been established must be rented at
the full rental rates.
Debugging allowance for 88/60 is limited to twentyhours of machine time.
Maintenance/Service Contracting
Burroughs will keep the machines in good operating
condition. All costs of maintenance (except for
ribbons and supplies) will be borne by contractor unless the required maintenance is due to the fault or
negligence of the lessee.
Burroughs shall provide maintenance service during
all periods of operation. Upon mutual agreement,
contractor will assign "on site" service engineers.
The lessee will provide adequate storage space for
spare parts, and adequate working space including
heat, light, ventilation, electric current and outlets,
for the use of the service engineers. These facilities will be within a reasonable distance of the machines to be serviced and will be provided at no cost
to contractor.
Preventive (scheduled) maintenance for each machine
will be furnished on a schedule which is mutually
acceptable to the lessee and Burroughs and which is
consistent with the operating requirements.
Burroughs will always be responsive to the maintenance requirements of the lessee. All remedial (unscheduled) maintenance will be performed promptly
after notification to contractor's nearest service
location that a machine is inoperative.
If contractor is unable to restore a machine to
good operating condition and the machine remains inoperative for a continuous period of 24 hours during
scheduled work days of the installation from the time
the lessee notifies contractor that the machine is
inoperative, and it is determined that (1) the machine
became inoperative through no fault or negligence of
the lessee, and (2) the lessee's production requirements were interfered with as a result of the machine
breakdown, Burroughs will grant to the lessee a credit
for each hour the machine was inoperative. Such
credit shall be 1/176th of the monthly Charge for the
inoperative machine plus 1/176th of the monthly charge
for an interconnected machine not usable as a result
of the breakdown; provided, however, that the credit
granted for each machine shall in no instance exceed
1/3Oth of the monthly charge for the machine in each
24 hour period.
Burroughs will use its best efforts to assist the
lessee in procuring service on equipment compatible
with that used by the lessee, to meet emergencies
such as a major breakdown, conversion from one system
to another, unforeseen peak loads, etc. The lessee,
at its option, may accept or reject the offer of use
of emergency equipment. If accepted, the cost of
such serVices, if any, will be arranged on an individual installation basis.
Lessee shall not be responsible for loss or damage
to the equipment caused by fire, lightning, sprinkler
leakage, tornado and wind storm, hail, water damage,
explosion, smoke and smudge, aircraft and motor vehicle
damage, earthquake, collapse of buildings or structures
and strikes, riots or civil commotion. Burroughs

Corporation shall provide transit insurance and comprehensive public liability insurance on the equlpment.
Burroughs Corporation will furnish prescribed
training of customer employees in programming and
operating procedures and techniques. Additional
services of a staff of qualified programmers, mathematical analysts and engineers to further improve
specific utilization of the equipment may be contracted for.
A standard Burroughs Corporation sales or rental
agreement will be executed at the time of sale or
lease.
Except for expendable items, such as tubes, diodes,
fuses, lamps, and neon indicators, all equipment is
guaranteed for one year against defective material
or workmanship.
ABMA

Rental for 205, 350, 351, 360, 406, 407, 466, 446,
2-458's, 454, 506, 352, 507, 509, 543, 3-544's is
$9,470.00 per month.
ABMA

205, 350, 351, 360, 406, 407, 466, 458, 543, 544,
500, 544, 420, 421 rents at $7,537 per month.
ABMA

205, 350, 351, 360, 406, 407, 466, 446, 2-458's, 506,
352, 507, 509, 543, 3-544's rents at $9,647 per month.
ABMA

205, 350, 351, 352, 406, 407, 466, 446, 458, 506,
507, 509, 360, 543, 4-544 l s, 454 rents at $10,060/mo.
ARGMA

Burroughs 205
360
500
543
544 (2)

406
420
458
446
IBM 528
IBM 407

$135,000
21,200
18,625
25,000
24,000
14,210
4,375
3,135
4,560
$235/month
800/month

Maintenance contract with Burroughs in the amount of
$20,000 per year.
USA CC
Computer
$3,90 0/month
Console
490/month
Flexowriter
95/month
Typewriter Control
1 37/month
Total
$4,622
ENS

Burroughs 205 Computer with Cardatron (1 in, 3 out),
6 magnetic tape units, tape bin file, paper tape reader and punch, Flexowriter, floating point - $12,740/
month.
IBM Type 523, 087 and two 407's - $1, 992/month.
USN HO Washington
$10,443/month - basic shift - Main frame, console,
Flexowriter, 3 tape units, Cardatron input & output,
IBM 089, IBM 407 and IBM 523.
USN MDL
Model
Description
Rental
Cost
205 Burroughs Digital Computer
$3,900 $135,000
406 Control Console
490
14,210
500 Punched Card Converter
567
18,625
446 Typewriter Control
137
4,560
458 Modified Flexowriter
95
3,135
454 Tape Perforator & Verifier
133
3,790
543 Magnetic Tape Control
750
25,000
544 Magnetic Tape Storage
375
12,000
Above equipment manufactured by Burroughs Corporation.

137

All following equipment manuf'actured by IBM Corp.
Model
Description
Rental
Cost
523 Card Summary Punch
$ 85
$4 , 300
407 Accounting Machine
800
42,000
010 Card Punch
10
600
024 Alphabetical Punch
40
1,950
026 Alpha Printing Punch
60
3,200
056 Alpha Verifier
50
2,400
077 Card Collator
115
5, 500
082 Sorter
85
2,575
402 Accounting Machine
525
24,500
519 Document Originating Machine
251
6,550
552 Alphabetic Interpreter
108
5,500
USNOL Corona
Burrou~hs - $300,475.
IBM - ~1,644.50 per month (on-line equipment)
IBM - $2,608.50 per month (off-line equipment)
Burroughs maintenance/service contracting is
$57,404.33 per year.
USN USL
Burroughs Digital Computer Model 205, Control Console Model 406, Moo.ified Flexowriter Model 458, Typewriter Control Model 446 costs $156,905.
Punched Card Converter Model 500, Magnetic Tape
Control Model 543, Datareader Nadel 544, Floating
Point Control Model 360, and Tape Perforator & Verifier costs a total of $92,615.
Burroughs Digital Computer Model 205, Control Console Model 406, Modified Flexowriter Model 458, Typewriter Control Model 446 rents for $4,622.
Punched Card Converter Model 500, Magnetic Tape
Control Model 543, Datareader Model 544, Floating
Point Control Model 360, and Tape Perforator & Verifier Model 454 rents for $2,925.
Griffiss AFB
Burroughs 205 System rents for $10,914/month.
IBM input, output equipment rents for $1,193/month.
Maintenance/service contract included with rental.
NASA ARC
System 107 - Main frame, console, punched card converter costs $120,000.
System 128 - Main frame, console, punched card converter costs $120,000.
System 107 - high speed punch - costs $5,000.
System 128 - magnetic tape, 2 drives, Cardatron
(2 input, 1 output), high speed punches - costs
$140,000.
Contract with Burroughs Corporation for maintenance
on 2-shift basis costs $57,500 per annum.
ATIC W-P
Main frame, console, punched card converter, and
2 tapes cost $275,000.
4 extra tapes cost $62,000.
3 full time personnel contracted at $47,000 for
maintenance.
Little
Computer, control console, typewriter control, and
Flexowriter cost $156,905.
.
Cardatron (Card input & output, printer) $107,'50
Magnetic tape control, 2 tape units
49,000
Peripheral IBM equipment (attached)
68,000
Computer, control console, typewriter control,~and
Flexowriter rents for $4,582.
Cardatron, magnetic tapes, and IBM equipment attached rents for $5,500.
Maintenance included in rental price. Service on
purchased equipment - basic system - $867/month;
additional equipment - $1, 950/month.

BURROUGHS 205

B & W Lynchburg
205, 403, 500, 543, 544, (2) 360 cost $260,000.
Additional eimulator.
Registers
Accumulator
25 bit encoded re~ister
Buffer register
Input-Output register
Program counter
6 Increment register
Address register
8 Total registers
Multiple Quotient register Operation register
Bhift register
Real Time register
There are approximately 40 holding flip flops
used for control.

ARITHMETIC UNIT
Incl. Stor. Access Exclud. Stor. Access
Operation
Microsec
Microsec
Add_
10.2 - 12.6
2.0
Mult
30 - 108
25 - 100
Div
108
100
Construction (Arithmetic unit only)
'rransistors 3360 (2N269, L5129, GA533242 and others)
Condenser-Diodes 8400 (Diodes-T6G and others, capacitors are mostly fixed with porcelain dielectric)
Magnetic -Cores
34,000
Other elements
12,000 Cr.riln3.I"ily resistors)
Arithmetic mode
Parallel
'riming
AsynChronous
Operation
Concurrent
System is asynchronous in that operations are com[lleted in varying times, concurrent in that main
aritrunetic solutions are concurrent with incremental
output updating.

BURROUGHS D 204

No. of
Digits

1,536
128

17
29

128

29

INPUT

PROGRAMMI NG AND NUMER I CAL SYSTEM
Internal number system
Binary digits/word

No. of
Words

174

Speed
Media
Microsec
Remarks
Analog to Digital 10.2 3 bit auto shift conversion
Digital
10.2 Maximum 25 bits, serial,
parallel operation
Optical Encoder
6.5 3 multiplex 23 bit parallel
inputs speed is limited by
optical encoder
Manual Switches
25 bits of coded digital,
parallel automatically
addressed
Computer contains serial-parallel input-output
Register also contains automatic interrupt and
start from outside control as a function of data
transmission.
Computer has analog to digital converters, optical
encoder code wheel inputs, gray code converter, digital input and outputs, six incremental and total
extrapolators, 8 channels of digital to analog 10 KC
converters, and manual switch inputs.

OUTPUT
Media
Analog
Digital

Speed
Microsec
Remarks
50
10 KC Converter
10.2 25 bits parallel - serial

CI RCU tT ELEMENTS OF ENTI RE SYSTEM
Quantity
Diodes
'l'GG
9,89 0
lN658
130
520
SG-22
Other
550
Transistors
2N269
1,980
L5129
4,670
2N584
600
Other
1,250
Magnetic Cores
34,000
Includes cores for RAM and program and constants
memories.
Type

CHECKING FEATURES
System has parity, overflow and incrementing overflow, and self confidence checking features. Analog
to digital null meter and displacement checks are
made. Diagnostic program utilizing card reader,
analog output voltage or difference checks can be
lnade. Computer contains signals to indicate above

RELIABILITY, OPERATING EXPERIENCE,
AND TIME AVAILABILITY

mentioned errors with manual and automatic reset
controls.

POWER, SPACE, WEIGHT AND SITE PREPARATION
D

Power, computer
Volume, computer
Area, computer
Floor loading

l.87 Kw
2.18 J0lA
.86 pf
22.6 cu ft
4.2 sq ft
552 Ibs/ sq ft
1,160 Ibs concen max
Computer has been designed to operate in ambient
of 75 ± 100F
Weight, computer
1,160 Ibs
System utilizes 2 kilowatts of 400 cycle, 3-phase
power and 200 watts of 60 cycle, single-phase power.

ADDITIONAL FEATURES AND REMARKS
Outstanding features include self checking feature, extrapolators, 10 KC digital-analog converters,
8 parallel channels, card reader testing, easily
modified for other uses, and easily programmed.
Unique system advantages include word length,
speed of operation, input-output accessability, ease
of maintenance, and over-under voltage regulation.

PRODUCTION RECORD
Number produced to date
Number in current operation
Number in current production
Number on order
Anticipated production rates
Time required for delivery

Machine essentially satisfies reqUirements of
MIL-I-983 B.
Mean time between failures has been calculated to
be above 88 hours and appears to be validated by
limited field experience.
Worst-cast design philosophy has been used throughout.
'

5
4
5
5

FUTURE PLANS

one per month
7 months

Because of its high computation speed, modifications are planned to extend the function of the
machine in its present application. Modifications
will include substitution of an 8192, 20 bit word
electrically alterable program memory, and a 512
word, 29 bit electrically alterable constants
memory for the wired core memories currently used,
and increasing the working (RAM) memory to 512 words.
Logic changes are to be incorporated which will increase the ease and speed of programming, and will
allow operation with additional inputs and outputs
on a time shared basis.

COSTv PRICE AND RENTAL RATES
Approxjmately $160,000 depending on quantity.

PERSONNEL REQU I REMENTS
One technician is required for each 8-hour shift.
Burroughs has provided formal training to naval
personnel in operation and maintenance of the SDC.
Installation, operation and maintenance personnel
can be provided as required.
Computer is designed to operate automatically in
real time applications. Operator is required only
for turn-on, and turn-off, and to insert data into
machine in the event of failure of associated equipments.

INSTALLATIONS
Two machines have been installed and are operating
on submarines. Two machines are ready for installation.

175

BURROUGHS D 204

BURROUGHS D 208

MANUFACTURER

Burroughs Model D 208

Burroughs Corporation

APPLICATIONS

OUTPUT

System is suitable for small scale special purpose
computing, process control, and missile guidance.

Media
Seven D. C. voltages, continuous, with 13 bits precision
Fifteen Relay inputs
Four parallel digital outputs, up to 24 bits
Capacity exists for 256 output channels

PROGRAMMING AND NUMERICAL SYSTEM
Binary
Internal number system
Binary digits/word
24
Binary d.igits/instruction
16
1
Instructions/word
Number of instructions decoded
13
Arithmetic system
Fixed point fractional
One address
Instruction type
Number range
-(1 - 2-2 3 ) to (1 _ 2- 23 )
Instruction word format
Operation

Index
Bits

1 - 3

5-6

Address

'7 - 15

CIRCU IT ELEMENTS OF ENTI RE SYSTEM
Type
Quantity
Diodes
7,000
Radio Recepter Type DP834 and DP835
Transistors
1,820
Philco Type 2N496 and Fairchild Type 2N697
Magnetic Cores
14,436
30-50 mil cores
Resistors
3,250
Capacitors
1,150
Inductances
1~20
Packaged in Burroughs Logi-Mod Technique

Parity
16

1
4
2
9
Registers include 3 arithmetic registers, 1 Shift
Counter, and two 6 bit "orring" index registers.

CHECKI NG FEATURES
Parity and diagnostic checking techniques are used.

ARITHMETIC UNIT
Incl. Stor. Access/ Exclud. Stor. Access
Operation
Microsec
Microsec
Add
26
26
Mult
700
700
Div
750
750
Construction (Arithmetic unit only)
Transistors
1,100~
Condenser-Diodes
4,750
Resisters
1,85G
Inductances
230
Arithmetic mode
Serial
'riming
Synchronous
Operation
Sequential

POWER, SPACE, WEIGHT, AND SITE PREPARATION
Power, computer
0.225 Kw
Volume, computer
0.52 cu ft
Area, computer
3 sq ft
Weight, computer
33 Ibs
Although some cooling is required, no special air
conditioning facilities are necessary.

PRODUCTION RECORD
Time required for delivery

RELIAB I LlTY, OPERATI NG EXPER I ENCE,
AND T ME AVAILABILITY
System features and construction techniques utilized
by the manufacturer to insure required reliability
include completely modular construction. All components are encapsulated to Logi Mods to withstand
shock, vibrations, and high temperature gradients.
Support structure provides heat removal. Cooling is
provided by air flow through structure. All semiconductors are silicon.

STORAGE
No. of
No. of
Access
Media
Words
Digits
Microsec
Non-destructive Ferrite
512
8,192
2
Core Memory
Non-destructive Ferrite
4,608
2
192
Core Memory
Destructive Ferrite Core
64
2
1,536
Memory
Although tape units are not presently associated
with the design, minor modifications could allow
addition of such equipment.

ADDITIONAL FEATURES AND REMARKS
Outstanding features include compactness, high performance, suitability for general purpose applications, and minimum cooling requirements.

INPUT
Media
Five D.C. voltages with continuous conversion up to
13 bits
Four parallel digital inputs up to 24 bits
Capacity exists for 256 input channels

BURROUGHS D 208

18 months

176

BURROUGH~3

D 209

Burroughs Digital Differential .knalyzer
(MAnDAM) D 209

MANUFACTURER
Burroughs Corporation

APPLICATIONS

OUTPUT

System is a small DDA using advanced packaging
techniques. It may be used in a real time control
system, specifically missile born guidance system.
It may be defined as a high speed serial 16 integrator DDA using a non-destructive read core memory.
System has been referred to as MADDAM.

Medium
Analogue
Delta de-modulation conversion from digital

CIRCUtT ELEMENTS OF ENTIRE SYSTEM
Quantity

Type

Diodes
PD202-P. s. I.
Transistors
2 N718
2 N706
Fairchild
Magnetic Cores

PROGRAMMING AND NUMERICAL SYSTEM
Internal number system
Binary
Binary digits/word
16
Binary digits/instruction
32
Instructions per word
1/2
Instructions decoded
16
Arithmetic system
Fixed point
Twos complement arithmetic is performed at binary
rates.
Masks are used to select integrator inputs
Two one-word masks are used to select precessing
dz's.
Number range
14
1 - 2to - 1

CHECKI NG FEATURES
POWER, SPACE, WEIGHT, AND SITE PREPARATION
Power, computer
Battery operated
Volume, computer
0.1 cu ft
Area, computer
0.3 sq ft
System is desk size
Heat sinks in frame preclude need for air conditioner
Weight, computer
12 Ibs
Battery operation precludes need for site preparation

ARITHMETIC UNIT
Incl. Store Access
Microsec
32 integrator

Add

PRODUCTION RECORD

Construction (Arithmetic unit only)
Transistors
250
Condensers
1,000
Resistors
350
Capacitors
150
Inductors
60
Arithmetic mode
Serial

Number produced to date
Number in current production
Anticipated production rates

No. of
Words

1

several/month
10/month

PER SONNEl REQU I REMENTS
Computer programs for special purposes are supplied.

STORAGE
Media
Non-destructive Read
Magnetic Core
Destructive Read
Magnetic Core

1,296

Parity checking and error recovery

There is one memory buffer register. Standard DDA
organization of controls are used, with the memory
acting like a drum.

Operation

1,626
700

48

Access
Microsec
0.5

33

0.5

RELIABILITY, OPERATING EXPERIENCE,
AND TIME AVAILABILITY

Reliability is achieved by macro-module construction, Fluxlok permanent memory and HTDL logic.
First unit was completed in October 1960.

ADDITIONAL FEATURES AND REMARKS

INPUT

Outstanding features include the fact that this
extremely small, fast DDA can be used in missile
systems.
Unique system advantages include advanced packaging techniques and Fluxlok memory.
System operates up to 1250C at 100% humidity.
Machine memory is expandable if desired.

Media
Analogue
Delta modulation conversion to digital

lTI

BURROUGHS D 209

BURROUGHS E 10 I
Burroughs Model E 101 Electronic Digital Computer

MANUFACTURER
Burroughs Corporation

Photo by the Burroughs Corporation

APPLICATIONS
Manuf'acturer
Scientific and business
U. S. A. Corps of Engineers, Cincinnati
Located in Room 450, 315 S. Main Street, Cincinnati,
Ohio, the system is used for Hydrology, Hydraulics,
and Statistics.
U. S. A. Corps of Engineers, Huntington
Located at 502 Eighth Street, Huntington, West Virginia, the system is used for Hydrology, HYdraulics,
Statistics, and Structures.
U. S. A. Corps of Engineers, Philadelphia
Located at Operations Division, U. S. Army Engineer
District, Philadelphia, the system is used for
Dredging ~lantities, Survey Traverse Closure Adjustments, Sextant Chart Layout, Reservoir Operations,
Back water Profile (subcritical) including overbank
flow, Cross Sectional Areas - Beach Profile, Deviation, Mean and Skew Computation on Concrete Samples,
Quantity Take-off for Earthfill Dam, and Payroll
Computation and Distribution.
U. S. A. Corps of Engineer, Tulsa
Located at Tulsa, Oklahoma, the system is used for
Hydraulic, Hydrologic, Civil Engineering and Payroll
Computations.
U. S. A. Corps of Engineers, Washington
Located at 1st & Douglas Streets, N. W., Washington
D. C., the system is used for Hydraulics & HYdrology
(Engineering), Statistics (Engineering), Structural

BURROUGHS E 101

Design (Engineering), and Cost Distribution (Accounting).
NATe, Patuxent River
Located at Armament Test, the system is used for
problems previously done on desk calculators, and
preliminary calculation required on larger problems
prior to entry into the Burroughs 205.
City & County of San Francisco
Located at City Hall, system is used by the Department of Public Works.
Automobile Carriers, Inc.
System is used to prepare daily billing, compute
payroll data, and to compile mileage and tonnage
statistics.
Burroughs Military Electronic Computer Division
Located at the Military Electronic Computer Division,
14300 Tireman, Detroit 28, the system is used for
the generation of SAGE AN/FST-2 performance parameters such as Availability, Reliability, Maintainability, and Meanntime-between-failures; for the
SAGE AN/FST-2 critical part and assembly removal
rate analysis: Units that were removed at an excessive rate during a given period are determined and
listed; and for miscellaneous tabulations, such as
Public Voucher Accounting tabulations listing total
expenditures on a given contract by account number
for material, labor, burden, %G&A, etc.

Photo by U. S. Arrrr:r Corps of Engineers
Hudson Engineering Corporation
Located at 5900 H1llcroft, Houston, Texas, the system is used for proce€ls design calculation, structural
design, and pipeline design.
Morgan Guaranty Trust Company of New York
Located at 140 Broadway, New York 15, N. Y., the
system is used for loan bookkeeping.
United States Rubber Company Research Center
Located at U. S. Rubber Company Research Center,
Alps Road, Wayne, New Jersey, the system is used for
maximization of polynomials representing rubber
properties, evaluation of theoretical functions over
wide ranges, contour plotting of polynomials, correlation and regression analysis, curve fitting, real
and complex roots of polynomials, and solutions to
special functions.
ZOOMAR Inc.
Located at Zoomar Inc., 55 Sea Cliff Avenue, Glen
Cove, N. Y., system is used for optical design calculations, especially ray tracing.
Bucknell University
Located at the Engineering Building, system is used
for education at all levels.

179

Colorado State University
Located at Colorado State University, the system is
used for statistical analysis and for training in
computer operating and programming.

PROGRAMMING AND NUMERICAL SYSTEM
Manufacturer
Internal number system
Decimal digits/word
Decimal digitS/instruction
Instructions per word
Instructions decoded
Arithmetic system
Instruction type
Number range

Binary coded decimal
12 + Sign

3
1
27
Fixed point
One addre ss

BURROUGHS E 101

ZOOMAR Inc.
Media
Speed
Full 11 Column Keyboard
Paper Tape (Duplex)
20 char/sec
2 reading heads permit simultaneously use of 2
program-or data-tapes. Instructions are executed
directly from tape and therefore do not require
storage space.
Colorado State University
Cards
20 char/sec

ARITHMETIC UNIT
Manufacturer
Incl Stor Access
Microsec
Add
50,000
Mult
250,000
Div
250,000
Construction (Arithmetic unit only)
Constructed of vacuum tubes and diodes
Arithmetic mode
Serial
Timing
Synchronous
Operation
Sequential

OUTPUT
Manufacturer
Media
Speed
Printer (Sensimatic)
24 digits/sec
Paper Tape
0.33 sees to punch BQffered
Punch Card
20 char/sec
Buffered
U. S. A. Corps of Engineers, Huntington
Printer
24 dec dig/sec
Paper Tape
600 dec dig/min
NATe, Patuxent River
The Tape Punch, Model A5l6, is capable of preparing
a data tape in the seven channel Burroughs 204 code
in addition to punching a program or data tape in
ElOl-3 code.
Automobile Carriers Inc.
Posting Machine
20 char/sec
10 Char/sec (For data)
Paper Tape
13 char/sec (For instructions)
ZOOMAR Inc.
Two l2-digit words/sec
Printer (ganged)
20 Char/sec
Tape Punch

STORAGE
Manufacturer
Access
No. of
No. of
Digits
Microsec
Words
Media
8,500
220
2,640
Magnetic Drum
Paper Tape
Punch Cards
External pinboard programming, 128 program steps.
Drum makes one rotation in 16.9 milliseconds.

INPUT
Manufacturer
Speed
Media
Manual
Keyboard
0.5 sec to read
Paper Tape
20 char/sec
Cards
U. S. A. Corps of Engineers, Philadelphia
11 column Keyboard
24 char/sec
Sensimatic MOdel F-l
Punched Paper Tape Input,
20 Char/sec
Model A53l
8 channel tape
Duplex Paper Tape Input,
20 Char/sec
MOdel A532
8 channel tape
Duplex Unit permits reading of two input tapes
alternately and provides program extension.
U. S. A. Corps of Engineers, Tulsa
Keyboard
533 Milliseconds
Paper Tape
50D + 133 Milliseconds,
where D = Number of digits.
U. S. A. Corps of Engineers, Washington
20 Char/sec
Punched Paper Tape
11 Digit Keyboard
NATe, Patuxent River
Keyboard
Manual
Paper Tape
o. 5 sec to read
The Tape Input Unit, MOdel A53l, is capable of
accepting a seven channel punched paper data tape
prepared in the Burroughs 204 code or standard
ElOl-3 code. Choice is made with an externally
mounted, manually operated switch. Entries regarding
input are from manufacturer's specifications.
Automobile Carriers, Inc.
Keyboard
7 char/sec, plus sign
Paper Tape
20 char/sec, plus sign
Burroughs Military Electronic Computer Division
Card (A536)
17 digits/sec
Keyboard
Not suitable for data reduction programs for large
quantity of input. Adequate for wide range of application in research, design, and business.

BURROUGHS E 101

CI RCU IT ELEMENTS OF ENTI RE SYSTEM
Manufacturer
Quantity
160
Tubes
Diodes
1,800
Type

CHECKI NG FEATURES
Manufacturer
Checking features include plug-in circuitry, marginal
voltage checking, internal program checking, parity
check on paper tape input and output, and automatic
error detection in printing circuits.

POWER, SPACE, WEIGHT o AND SITE PREPARATION
Manufacturer
Power, computer
Room size
Weight, computer
u. S. A. Corps
Power, computer
Volume, computer
Area, computer
U. S. A. Corps
Room size
u. S. A. Corps
Enclosed 12 1/2 ft x
ing power service to
lines in room.

180

3 Kw
Desk size
1,800 lbs
of Engineers, Cincinnati
3 Kw
60 cu ft
20 sq ft
of Engineers, Huntington
10.5 Ft x 19.0 ft
of Engineers, Philadelphia
16 ft space and extended existprovide 2 - 220 volt service

U. S. A. Corps of Engineers, Tulsa
Capacity, air conditioner
2 Tons
Air conditioner
2 one-ton window units
Ran 220 volt line for computer and air conditioners.
U. S. A. Corps of Engineers, Washington
Floor loading
110 lbs/sq ft
400 lbs concen max
Does not require air conditioning in excess of
normal office air conditioning.
NATe, Pa.tuxent River
The E101-3 was installed in a room 16.5 ft x 39 ft
already housing some data reduction equipment. The
floor was reinforced to meet load requirements.
Existing air conditioning was adequate to absorb
E101-3 heat generated, therefore existing air conditioner is used.
Automobile Carriers Inc.
Room size
12 ft x 12 ft minimum
115-230 volt 3 wire single phase plus a ground wire.
Terminate line in a 2 pole 20 amp circuit breaker.
For small room, 2 window air conditioning units are
recommended.
Burroughs Military Electronic Computer Division
Voltage: 230V, three phase, 115V three phase power
line, 25 amps. 6 seven inch fans are used for ventil~~n.
.
Hudson Engineering Corporation
Acoustical treatment of Walls, ceiling and floor.
Exhaust ducts and hoods to remove air directly from
machines.
Two tons of air conditioning was added to central
unit.
U. S. Rubber Company Research Center
Floor loading
67 lbs/sq ft
ZOOMAR Inc.
Room size
10 ft x 10 ft minimum
220V single phase special power line.
Bucknell University
Air conditioner
Window size
Colorado State University
Floor loading
20 lbs/sq ft
500 lbs concen max

PRODUCTION RECORD
Manufacturer
Number in current operation
Time required for delivery

127
4 months

COST PRICE AND RENTAL RATES
p

Manufacturer
Cost
$29,750

Basic System
Computer, MOdel E-10l. (Includes Magnetic Drum Memory
of 220 words of 12 digits each,
16 removable pinboards for external programming (eight pinboards may be used with the E-10l
at one time) and Keyboard Printer
with ll-column keyboard for input,
and 12 digit + sign output
Additional equipment
Punched Paper Tape Input
2,950
Punched Paper Tape Output
2,950
Punched Card Input
3,450
Punched Card Output
2,375

Monthly
Rental
$875

Preventive maintenance is performed monthly by the
Burroughs engineers, other service is on an "ON-CALL"
basis.
U. S. A. Cor~s of Engineers, Cincinnati
Basic system
G. S. A. Contract
$l,OOO/month.
Additional equipment
G. S. A. Contract Tape Input
$lOO/month.
Maintenance/service contracting is included in the
rental.
U. S. A. Corps of Engineers, Philadelphia
Monthly
Cost
Rental
Computer, Model E-10l
$38,325
$1,000
Punched Paper Tape Input,
3,765
100
Model A531
Duplex Paper Tape Input,
2,375
MOdel A532
Maintenance/service contracting is included in monthly rental; $2,600 is paid annually on purchased equipment.
U. S. A. Corps of Engineers, Tulsa
Flexowriter cost $2,623.50.
E-10l Computer rents at $1,000 per month.
Tape Input Unit rents at $165 per month and Tape
Output Unit rents at $100 per month.
Flexowriter service is $150 per year.
NATC, Patuxent River
1 E101-3 Computer, 1 Punched Paper Tape Input Unit,
Model A531, and 1 Punched Paper Tape Output Unit,
Model A516 cost $33,100.
Automobile Carriers Inc.
Rental rate for basic system is $875 per month.
Rental rates for additional equipment per month
$100
Tape Input
Tape Outputs
100
Additional pinboards
50
Burroughs Military Electronic Computer Division
The E 101-3, A536, and A516 is rented at $1,300 per
month.
Hudson Engineering Corporation
Two of the following systems were purchased:
Computer
$30,000
Tape Input
2,500
Tape Output
3,500
A Flexowriter was purchased at $2,500.
Maintenance/service is $2,500/year on each system.
U. S. Rubber Company Research Center
Computer
$37,730
Tape Input Unit
6,810
Tape Output Unit
4,010
Additional Pinboard Units
360
Maintenance service at $2,780 per annum.
ZOOMAR Inc.
System cost $36,550.
Additional equipment rents at $3,480 per annum.
Maintenance service cost $2,400 per annum.
Colorado State University
Computer only, with educational discount $30,000
Cost of input
2,500
IBM-EAM
220/mo.
$2,400/year.
Burrough Service Contract

85
85
1.05
70

1.81

BURROUGHS E 101

PERSONNEL REQU I REMENTS
Manufacturer
Programmers

One 8-Hour Shift
1

~~~~s

1

Engineers
1
Programming and operating instructions will be given
at no cost to the customer either at his installation
or at the manufacturer's facilities.
U. S. A. Corps of Engineers, Cincinnati
One part time supervisor and one operator.
~eration tends toward open shop.
Manufacturer's training is used.
U. S. A. Corps of Engineers, Huntington
One 8-Hour Shift
Supervisors
1
part time
Programmers
1
part time
Op~ators

1

Manufacturer's training is used.
U. S. A. Corps of Engineers, Philadelphia
One 8-Hour Shift
Used
Recommended
1/2
Programmers
1/2
~erators
1/2
1/2
In-Output ~era
1/2
1/2
Operation tends toward closed shop.
Classroom instruction by Burroughs Corporation in
basic programming and operating techniques. On-thejob trainin,g for operators and programmers as required.
U. S. A. Corps of Engineers, Tulsa
One 8-Hour Shift
Used
Recommended
Supervisors
1
1
part time
~erators
1
1
part time
~eration tends toward open shop.
Two day programming schools conducted by Burroughs
Corporation are utilized.
U. S. A. Corps of Engineers, Washington
One 8-Hour Shift
Used
Recommended
Supervisors
1/4
1
1/2
1
Programmers
Engineers
1/2
1
~eration tends toward open shop.
Training accomplished by manufacturer at no cost.
NATe, Patuxent River
One 8-Hour Shift
Used
Recommended
Supervisors
1 .
1
14
Programmers
14
Operation tends toward open shop.
The training received by programmers is that which
is available through the computer manufacturer. Programming is not a primary duty of mathematicians or
mathematics aids.
Automobile Carriers Inc.
One 8-Hour Shift
Programmers
1
Operators
1
Operation tends toward open shop.
Burroughs Military Electronic Computer Division
One 8-Hour Shift
Used
Recommended
Supervisors
1
1
Analysts
1
1
Programmers
1
1
Clerks
1
1
Operation tends toward closed shop.
Classroom type grouped training is given.

BURROUGID3 E 101

Hudson Engineering Corporation
One 8-Hour Shift
Supervisors
1
Programmers
1
Operators
2
Operation tends toward open shop.
On-the-job training is given.
U. S. Rubber Company Research Center
One 8-Hour Shift
Supervisors
1
Analysts
1
Programmers
1
Operation tends toward closed shop.
Methods of training used include on-the-job training
and partial tuition refund plan.
ZOOMAR Inc.
One 8-Hour Shift
Analysts-Programmers
1
Operators
1
Operation tends towards closed shop.
Colorado State University
One 8-Hour Shift
Used
Recommended
Supervisors
1
Analysts
1
4
Programmers
6
6
Coders
o
10
Cl~ks

2

2

Librarians
o
1
Operators
1
2
Engineers
1
1
Technicians
1
o
Operation tends toward open shop.
Methods of training used:
Seminars for staff personnel
Regular classes for students
System is used for instruction in computer programming, coding, and operating.

RELIABILITY, OPERATING EXPERIENCE.
AND TIME AVAILABILITY
u. s. A. Corps of Engineers, Cincinnati
Good time
41 Hoursjweek (Average)
Attempted to run time
42 Hours/Week (Average)
Operating ratio (Good/Attempted to run time) 0.98
Above figures based on period from Apr 57 to Jun 60
Passed Customer Acceptance Test Nov 56
Time is available for rent to certain qualified
outside organizations.
U. S. A. Corps of Engineers, Huntington
Good time
39 Hoursjweek (Average)
40 Hours/Week (Average)
Attemptied to run time
Operating ratio (Good/Attempted to run time) .0975
Above figures based on period from Feb 58 to Jun60
Passed Customer Acceptance Test Feb 58
Time is not available for rent to outside organizations.
U. S. A. Corps of Engineers, Philadelphia
Average error-free running period
18 months
Operating ratio (Good/ Attempted to run time) 1. 0
Above figures based on period 1 Jan 60 to 30 Jun 60
Passed Customer Acceptance Test 18 Jul 60
Time is available for rent to qualified outside organizations.
Information based on rental on a service bureau
E-lOl computer used exclusively by this organization.
This organization has experienced only one occasion
in 18 months of operation of service bureau machine
wherein the E-lOl made an undetected error. TiJ:Ie
would be made available for rental to outside organizations on a second shift basis. Qualified opera-

182

tors would normally be expected to be provided by
user.
U. S. A. Corps of Engineers, Tulsa
Average error-free running period
1 Week
Good time
34 Hours/Week (Average)
Attempted to run time
40 Hours/Week (Average)
Operating ratio (Good/Attempted to run time) 0.85
Above figures based on period 1 Feb 58 to 31 Jun 60
Passed Customer Acceptance Test
L Feb 58
Time is not available for rent to outside organizations.
U. S. A. Corps of Engineers, Washington
1 Month
Average error-free running period
Good time
21 Hours/Week (Average)
Attempted to run time
22 Hours/Week (Average)
Operating ratio (Good/Attempted to run time) 0.96
Above figures based on period from Jun 58 to Jun 60
Passed Customer Acceptance Test 1 Jul 60
Time is available for rent to outside organizations.
Running time data based on E-lOl installation.
Current system installed 1 July 1960.
NATe, Patuxent River
Operating experience is kept on a monthly basis. The
figures below are monthly averages:
Production
54.1
Program Checking
13.8
Idle
72.9
Down
ll.6
Above fieures based on period 1 Jan 60 to 31 Mar 60
Passed Customer Acceptance Test Aug 59
Automobile Carriers Inc.
Good time
31 Hours/Week (Average)
Attempted to run time
33 Hours/Week (Average)
Operating ratio (Good/Attempted to run time) 0.94
Above figures based on period 1 Aug 60 to 31 Aug 60
Time is available for rent to qualified outside organizations.
Burroughs Military Electronic Computer Division
Good time
35 Hours/Week (Average)
Attempted to run time
40 Hoursjweek (Average)
Operating ratio (Good/Attempted to run time) 0.875
Above figures based on period from Jan 58 to Jan 59
Time is not available for rent to outside organizations.
Hudson Engineering Corporation
Operating ratio (Good/Attempted to run time) 0.90
Time is available for rent to qualified outside organizations.
Morgan Guaranty Trust Company of New York
Time is not available for rent to outside organizations.
U. S. Rubber Company Research Center
Good time
21.4 Hours/Week (Average)
Attempted to run time
23.1 Hours/Week (Average)
Operating ratio (Good/Attempted to run time) 0.926
Above figures based on period 1 Oct 59 to 1 Jul 60
Passed Customer Acceptance Test Dec 57
Time is not available for rent to outside organizations.
ZOOMAR Inc.
Good time
32 Hours/Week (Average)
Attempted to run time
40 Hours/Week (Average)
Operating ratio (Good/Attempted to run time) 0.80
Above figures based on period 1 Jan to 31 Jul
Time is not available for rent to outside organizations.
Bucknell University
Operating ratio ( Good/Attempted to run time) 0.8
Passed Customer Acceptance Test Jul 58
Time is available for rent to qualified outside organizations ~

Colorado State University
Good time
15 Hours/Week (Average)
Attempted to run time
18 Hours/Week (Average)
Operating ratio (Good/Attempted to run time) 0.833
Above figures based on period from Aug 58 to Apr 60
Passed Customer Acceptance Test
Aug 58
Time is available for rent to outside organizations.

ADDITIONAL FEATURES AND REMARKS
Manufacturer
Card output adapter permits connection of a keypunch to enable output data only from the computer
accumulator. The multiple input adapter enables the
simultaneous connection of a punch paper tape input
and a punch card input, a duplex paper tape input
and a punched card input or a duplex paper tape input and a second paper tape input.
Unique system advantages include ease of programming
and complete formatting ability with the Burroughs
Sensimatic Printer.
U. S. A. Corps of Engineers, Huntington
Outstanding features include ease of programming.
U. S. A. Corps of Engineers, Philadelphia
Outstanding features are operating flexibility automatic or operator intervention, external pinboard programming permits program modification or
alteration with minimum of delay, and automatic address modification by means of 2 counters for sequencing in repetitive operations. External pinboard programming is unique with the E-lOl; provides
a means of quickly and easily modifying program based
on intermediate results, experience and judgment.
U. S. A. Corps of Engineers, Washington
This machine is very easy to program and operate,
thus enabling engineering per sonnel to program and
run their own programs.
NATe, Patuxent River
Unique system advantages include tape input and output compatibility with other systems, such as semiautomatic film readers, Datatron 204, and electric
plotter.
Burroughs Military Electronic Computer Division
Outstanding features include ease of operation. The
system brings advantages of electronic computation
into the area of small calculating problems.
U. S. Rubber Company Research Center
Outstanding features include programming simplicity and ease of operation.
Unique system advantages include rapid program
development, which permits economical use of computer for many "one-shot" programs as well as standard routines.
Paper tape is stored in special loose-leaf binder.
ZOOMAR Inc
Outstanding features are ease of programming and operation. System can be operated like a desk calculator, but at much greater speed. Allows the economical handling of problems, usually not assignable
to larger digital computers.
Colorado State University
An outstanding feature is its Simplicity. It serves
as an excellent training device.

BURROUGHS E 101

Space Technology Laboratories
Los Angeles, California

u. s.

Department of Public Works
City and County of San franciSCO, City Hall
San FranCiSCO, California

FUTURE PLANS

A. Corps of Engineers, Huntington
We will expand to two shifts.
U. S. A. Corps of Engineers, Philadelphia
Plan to obtain Punched Paper Tape Output, Model
A5l6 ($lOO/monthly lease) to be able to handle
add.itional accounting applications.
NATC, Patuxent River
Purchase of a duplex paper tape input unit for use
with the installed Model A53l Tape Input Unit.
This will form a system whereby commands and data
in ElOl-3 or Burroughs 204 code may be read alternately without changing tapes.

AeroJet-General Corporation
Azusa, California
Beech Aircraft Corporation
Wichita, Kansas
Bell Helicopter Corporation
Fort Worth, Texas
Boeing Airplane Company
Flight Test Division
Seattle, WaShington
Convair
San Diego, California

INSTALLATIONS

Douglas Aircraft Company
E1 Segundo, California
Fairchild Guided Missiles
Astrionics Division
Wyandauch, Long Island, New York
Hughes Aircraft Company
Culver City, California
McDonnell Aircraft Corporation
St. LouiS, Missouri
North American Aviation
Los Angeles, California
Pratt and Whitney Aircraft
East Hartford, Connecticut
Federal Reserve Bank of Chicago
Chicago, Illinois
First National City Bank ,
New York City, New York
M::>rgan Guaranty Trust Company of New York
140 Broadway
New York 15, New York
Wachovia Bank and Trust Company
Winston-Salem, North Carolina

U. S. Army Chemical Center
Edgewood, Maryland
Army Ballistics Missile Agency
Redstone Arsenal
Huntsville, Alabama
Army Ballistic Missile Agency
Cape Canavaral, Florida
U. S. A. Corps of Engineers, Ohio River
315 -335 Main Street
Cincinnati, Ohio
U. S. A. Corps of Engineers, Huntington
502 8th Street
Huntington 1, West Virginia
U. S. A. Corps of Engineers, Philadelphia
2635 Abbottsford Avenue
Phi.ladelphia 29, Pennsylvania
U. S. A. Corps of Engineers, Tulsa
Tulsa, Oklahoma
U. S. A. Corps of Engineers, WaShington
First and Douglas Streets NW
Washington 25, D. C.
Frankford Arsenal
Philadelphia, Pennsylvania
White Sands Missile Range
New Mexico
Bureau of Yards and Docks
Washington, D. C.

Aetna Life Insurance Company'
Hartford, Connecticut
Colonial Life Insurance Company
East Orange, New Jersey
General Insurance Company of America
Seattle, Washington
Mutual Insurance Advisory Association
New York City, New York
Mutual Insurance Company of New York
New York City, New York
National Bureau of Casualty Underwriters
New York City, New York
The Travelers Insurance Company
Hartford, Connecticut
Ethyl Corporation
Detroit, Michigan
Humble Oil Company
Baytown, Texas
Standard Oil Company
Cleveland, Ohio
Sun Oil Company
Philadelphia, Pennsylvania

Armament Test, NATC,
Patuxent River, Maryland
David Taylor Model Basin
Carderock, Maryland
U. S. Naval Research Laboratory
Vanguard Project
Cape Canaveral, Florida
Edwards Air Force Base
California
Wright Air Development Center
Wright-Patterson Air Force Base
Fairborn, Ohio
Defense Supply Service
Washington, D. C.
California Institute of Technologr
Jet Propulsion Laboratories (NASA)
Pasadena, California

BURROUGHS E 101

1.84

Alega Engineers Incorporated
Houston, Texas
All American EngiReering Company
Wilmington, Delaware
American Research Corporation
Atlanta, Georgia
American Totalisator Company
Baltimore, Maryland
Automobile Carriers, Inc.
P. O. Box 128
Flint, Michigan
Burroughs Military Electronic Computer Division
14300 Tireman
Detroit 28, Michigan
Edgerton, Germeshausen and Grier, Inc.
Boston, Massachusetts
General Electric Company
Philadelphia, Pennsylvania
General Electric Company
Syracuse, New York
Hudson Engineering Corporation
5900 HilJ,.croft
Houston, Texas
Kollmorgen Optical Corporation
Northampton, Massachusetts
Minneapolis-Honeywell Regulator Company
Philadelphia, Pennsylvania
Morgan Construction Company
Worcester, Massachusetts
Olin Mathieson Chemical Corporation
New Haven, Connecticut
Paoli Research Center
Burroughs Corporation
Paoli, Pennsylvania
Praeger-Kavanagh Engineering
New York City, New York
Radio Corporation of America
Waltham, Massachusetts
Smith Kline and French Laboratories
Philadelphia, Pennsylvania

Ward Baking Company
Chicago, Illinois
Westinghouse Electric Corporation
Aviation Gas Turbine Division
Kansas City, Missouri
Westinghouse Electric Corporation
Sharon, Pennsylvania
ZOOMAR Incorporated
55 Sea Cliff Avenue
Glen Cove, Long Island, New York
Bucknell University
Lewisburg, Pennsylvania
Colorado State University
Computing Center
Fort Collins, Colorado
Georgetown University
Washington, D. C.
Institute of Textile Technology
Charlottesville, Virginia
Massachusetts Institute of Technology
Cambridge, Massachusetts
New York University
New York City, New York
Syracuse University
Syracuse, New York
University of Cincinnati
Cincinnati, Ohio
University of Detroit
Detroit, Michigan
University of Missouri
Columbia, Missouri
University of Pennsylvania
Philadelphia, Pennsylvania

Tung - Sol Electric Incorporated
Newark, New Jersey
The Upjohn Company
Kalamazoo, Michigan
U. S. Rubber Company Research Center
Alps Road
Wayne, New Jersey
U. S. Steel Corporation
Monroeville, Pennsylvania

BURROUGHS E 101

BURROUGHS E 102

MANUFACTURER
Burroughs Corporation

BQTroughs Model E 102 Electronic Digital Computer

Photo by U. S. Army Engineer District, Kansas City
Units that were removed at an excessive rate during
a given period are determined and listed; and for
miscellaneous tabulations such as public voucher
accounting tabulations listing total expenditures
on a given contract by account number for material,
labor, burden, %G and A, etc.
Burroughs Corporation
Located at the Burroughs Corporation, Methods and
Procedures Division, 6071 Second Avenue, Detroit 32,
Michigan, the system is used for inventory extension,
sales quota calculation, master card part cost extenSion, and miscellaneous engineering design pro'blems.
Edgerton, Germeshausen & Grier, Inc.
Located at 160 Brookline Avenue, Boston, Mass., the
system is used for photogrammetric data processing
(triangulations, dimensional measurements), statistical calculations (correlation coeffiCients, least
squares curve fitting, etc.), and occasional business
statistical uses.

APPLICATIONS
Manufacturer
Scientific and business. System is similar to the
BURROUGHS E 101.
U. S. Army Engineer District, Kansas City
Located on the Mezz. Floor, Federal Office Building,
Kansas City 6, Missouri, the system is used for
engineering, mathematical and scientific applications, including structural analysis and design,
hydraulic and hydrological studies, soils, earthwork and dredging, and topography and geodetics.
Burroughs Corporation
Located at the Burroughs Corporation, Military
Electronic Computer Division, 14300 Tireman, Detroit
2(3, Michigan, the system is used for the generation
of SAGE AN/FST-2 performance parameters such as
availability, reliability, maintainability, and
mean-time-between-failures; for the SAGE AN/FST-2
critical part and assembly removal rate analysis.

BURROUGHS E 102

186

Photo by Edgerton, Germeshausen & Grier, Incorporated
Space Technology Laboratories, Inc.
Located at the Computation and Data Reduction Center,
2400 E. El Segundo Blvd., El Segundo, California,
the system is used for small scale scientific computations.

PROGRAMMING AND NUMERICAL SYSTEM
Internal number system
Decimal digits/word
Decimal digits/instruction
Instructions/word
Instructions decoded
Arithmetic system

Binary coded decimal
12 + sign

3
1

27
Fixed point

Instruction type
One address
Number range
-10 (1_10-11 )
n
+10 (1_101l)

:s :s

ARITHMETIC UNIT
!ncl Stor Access
Microsec
Add
50,000
Mult
250,000
Div
250,000
Construction (Arithmetic unit only)
Constructed of vacuum tubes and diodes
Arithmetic mode
Serial
Timing
Synchronous
Operation
Sequential

BURROUGHS E 102

Burroughs Corp., 14300 Tireman
Power, computer
2.8-5.1 KVA
Desk Size
Volume, computer
100 sq ft
Area, computer
144 sq ft
Room Size, computer
Voltage: 230 three-phase, 115 three-phase; 25 amps.
No installation preparations other than electrical
power line. Six 1 inch fans.
Burroughs Corp.
Power, computer
2.8-5.1 KVA
100 sq ft
Area, computer
144 sq ft
Room size, computer
No installation preparations other than electrical
power line. Six 1 inch fans.

STORAGE
Manufacturer
No. of
No. of
Access
Media
Words
Digits
Mlcrosec
Magnetic Drum.
220
2,640
8,500
Paper Tape
Punch Cards
External pinboard programming, 128 program steps.
Drum. makes one rotation in 16.9 mllliseconds.
All of the above five reporting users utilize the
220 word magnetic drum. memory.

E, G & G, Inc.

Power, computer
3. 5 Kw
Area, computer
20 sq ft
Room size, computer
12 ft x 12 ft
Computer generates 12,000 BTU. We have no special
air conditioner. The computer is located in standard air conditioned environment. No special building modifications. Installation of power cable required; 115 230 volt, 3 wire single phase plus ground.
STL
Power, computer
2.5 KVA
Volume, computer
1,500 cu ft
Area, computer
150 sq ft
Floor loading
80 Ibs/ sq ft
Air conditioner is included in house system. No
special site preparation required.

INPUT
Manufacturer
Medla
Speed
Keyboard
Manual
Paper Tape
0.5 sec. to read
Card
20 char/sec
All of the five reporting users utilize the 11
column keyboard and punched paper tape input.

Manufacturer
Media
Printer (Sensimatic)
Paper Tape

OUTPUT

Speed
24 digits/sec
0.33 secs to ~unch
Buffered
Punch Card
20 char/sec
Buffered
All of the five reporting users utilize the Sensimatic Printer.

PRODUCTION RECORD
Number in current operation
Time required for delivery

121
4 months

COST PRICE AND RENTAL RATES
p

CI RCU tT ELEMENTS OF ENTI RE SYSTEM
Quantity
160
1,800

Type

'I'ubes
Diodes

CHECKI NG FEATURES
Checking features include plug-in circuitry, marginal voltage checking, internal program checking, parity check on paper tape input and output, and automatic error detection in printing circuits.

POWER SPACE, WEIGHT, AND SITE PREPARATION
g

Manufacturer
Power, computer
Room size, computer
Weight, computer
USAD, Kansas City
Power, computer
3.0 Kw
Volume, computer
Area, computer
Room size, computer
Floor loading

STL

System cost $28,000 and rents at $l,lOO/month.
vice is included in rental.

3 Kw
Desk Size
1,800 Ibs

}~

102

Ser-

PERSONNEL REQU I REMENTS

1.0 pf
3.0 KVA
50 cu ft
11 sq ft
18 ft x 23 ft
82.5 Ibs/sq ft
1,400 Ibs concen max
Weight, computer
1,400 Ibs
Basically the only site preparation was the installation of an adequate power supply. (115-230 volt,
3-wire, single-phase circuit)
If building air conditioning is not available, about 1 1/2 tons would
be required for the space utilized.

BURROUGHS

USAD, Kansas City
E-I02 Computer rents at $l,OOO/month.
Model A531 Punched Paper Tape Input Unit rents for
:tnOO/month.
Maintenance is furnished along with the basic
rental price of the system.
Burroughs Corp., 14300 Tireman
The E-I02 and A531 rents at $1,115/month.
Burroughs Corp.
The E-I02 and A531 purchase cost was $42,090.
E, G & G, Inc.
The E-I02 cost $30,000.
The tape input unit cost $10,000.
No contract - service as required.

Manufacturer
Each 8-Hour Shift
Programmer
1
Operator
1
Engineer
1
Programming and operating instructions will be
given at no cost to the customer either at h1.s installation or at the manufacturer's facilities.
USAD, Kansas City
One 8-Hour Shift
Used
Recommended
Supervisors
1
1
Programmers
1
2
Clerks
1
J.
The supervisor is also a programmer.
188

Operation tends toward open shop. The installation
is operated as an "open shop" with "closed shop"
programming assistance as required. The semi-open
shop method of operation is desirable due to the simplicity of machine operation and due to the fact that
open shop operation stimulates interest at the problem solving level and permits our design engineers
to telescope years of design experience into a few
months.
Methods of training used includes formal programming
training by manufacturer, individual instruction by
installation employees, and on-the-job training.
Burroughs Corp., ~4300 Tireman
One 8-Hour Shift
Used
Recommended
Supervisors
1
1
Analysts
1
1
1
1
Programmers
1
1
Clerks
Operation tends toward closed shop.
Method of training used is classroom type training.
Burroughs Corp.
One part time operator is required.
Operation tends toward open shop.
Method of training used is personal instruction.
E, G & G, Inc.
One 8-Hour Shift
Supervisors
1
2
Analysts
Operation tends toward closed shop.
Methods of training used is two day programming
and operators course given by our own personnel to
indoctrinate new analysts.
STL
Two programmers used and recommended.
Operation tends toward closed shop.
Method of training used is on-the-job training.

nuclear weapons test data processing April-October,
1957. During that time it was on a two shift, seven
day week operation. Performance was excellent.

STL
Good time
38.5 Hours/Week (Average)
Attempted to run time
36 Hours/Week (Average)
Operating ratio (Good/Attempted to run time) 0.94
Above figures based on period from Apr 60 to Jun 60
Passed Customer Acceptance Test Feb 57
Time is available for rent to qualified outside organizations.

ADDITIONAL FEATURES AND REMARKS
Manufacturer
Card output adapter permits connection of a keypunch to enable output data only from the computer
accumulator. The multiple input adapter enables the
simultaneous connection of a punch paper tape input
and a punch card input, a duplex paper tape input
and a punched card input or a duplex paper tape
input and a second paper tape input.
Unique system advantages include ease of programming and complete formatting ability with the
Burroughs Sensimatic Printer.
USAD, Kansas City
Outstanding features are ease of programming, operation and debugging. A complete ADPS installation
is contained in the basic machine.
The addition of a tape input unit increases the
capacity of the E-l02, but the machine is, in most
cases, too slow for long and complex problems that
require large amounts of data input.
Burroughs Corp., 14300 Tireman
Outstanding features are ease of operation and it
brings advantages of electronic computation into the
area of small calculating problems.
Burroughs Corp.
Outstanding features are ease of operation and electronic speed on small calculating problems.
E, G & G, Inc.
Unique system advantages are compactness, high amount
of up time with minimum service requirements.

RELIAB I LlTY, OPERATI NG EXPER I ENCE v
AND TIME AVAILABILITY

USAD, Kansas City
Good time
40.2 Hours/Week (Average)
Attempted to run time
40.5 Hours/Week (Average)
Operating ratio (Good/Attempted to run time) 0.992
Above figures based on period 1 Jan 60 to 1 Jul 60
Passed Customer Acceptance Test
Jan 58
Time is not available for rent to outside organizations.
Good time includes production and testing. Attempted
to run time includes production and testing and wasted
effort due to machine errors.
Burroughs Corp., 14300 Tireman
Good time
35 Hours/Week (Average)
Attempted to run time
40 Hours/Week (Average)
Operating ratio (Good/Attempted to run time) 0.875
Above figures based on period from Jan 58 to Jan 59
Time is not available for rent to outside organizations.
Burroughs Corp.
Good time
9.5 Hours/Week (Average)
Attempted to run time
10 Hours/Week (Average)
Operating ratio (Good/Attempted to run time) 0.95
Above figures based on period from Nov 57 to Jul 60
Time is available for rent to outside organizations.
E, G & G, Inc.
Good time
38 Hours/Week (Average)
Attempted to run time
40 Hours/Week (Average)
Operating ratio (Good/Attempted to run time) 0.95
Above figures based on period from Feb 57 to Aug 60
Passed Customer Acceptance Test Feb 57
Time is not available for rent to outside organizations.
We used this computer at Las Vegas, Nevada, for

FUTURE PLANS
USAD, Kansas City
A request to discontinue rental of the Burroughs
E-102 Electronic Computer with tape input unit and
to install an IBM 1620 Data Processing System is
under consideration. This new system would increase
the problem solving capacity of the district and will
also lend itself to the solution of more complex
problems which, at this time, due to machine limitations (storage and speed), are not feasible or practical.
The new system, if approved, would include:
Quantity
1
IBM 1620 Data Processing System
1
IBM 046 Tape to Card Converter
1
IBM 063 Card to Tape Converter
1
IBM 022 Printing Card Punch
1
IBM 056 Card Verifier
1
IBM Series 50 Card Sorter
1
Model FPC-8 Flexowriter
E, G & G, Inc.-Possibility exists of replacing current
computer with newer versions in same operating and
price ranges.

I NSTAllAT IONS

U.S. Army Engineer District, Kansas City, Mo.
Burroughs Corporation, 14;00 Tireman, Detroit, Mich.
Burroughs Corporation, 6071 2nd Ave., Detroit, Mich.
Edgerton, Germeshausen & Grier, 160 Brookline, Boston
Space Technology Laboratories, El Segundo Calif.
University of Pennsylvania, 200 S. 33rd st, Phila 4, Pa.

189

BURROUGHS E 102

BURROUGHS EI03

Burroughs Model E 103 Electronic Digital Computer

MANUFACTURER
Burroughs Corporation

Photo by the Burroughs Corporation

APPLICATIONS

Instruction word format

Manufacturer
Desk size system for general purpose computing.
David Taylor Model Basin
Located on the second floor of the Hydromechanics
Laboratory building, the system is used for solving
engineering and scientific problems by the engineer
an scientist in order that he get a feel for the
problem, particularly if the problem is not sufficiently complex to justify programming on a larger
computer, such as the IBM 704.

Operation Code
W

BURROUGHS E 103

Units level
of address

1

5

W - Write contents of accumulator into cell 15,
leaving copy in accumulator
Accumulator - 12 digits plus sign, "Clearing House"
for all data to and from memory.
B register - 11 digits plus sign. Holds the multiplicand or the divisor during multiplication or division, respectively.
The E 103 is an externally programmed machine
through replaceable pinboards. Metal contact pins
dropped through the pinboard, provide the contacts
to an internally wired program. 29 different commands
are available before being modified by mechanical
stepping switches. A maximum of 128 program steps
can be stored on the machine at any one time.
Floating point may be programmed.

PROGRAMMING AND NUMERICAL SYSTEM
Manufacturer
Internal number system
Decimal digits/word
Arithmetic system
Instruction type

Tens level
of address

Decimal
12 plus sign
Fixed point
One address

190

Photo by the U. S. Navy David Taylor Model Basin

ARITHMETIC UNIT

INPUT

Manufacturer
Media
Speed
Keyboard
Manual
Paper Tape
20 char/sec
Card
20 or 17 card cOlumns/sec
Field modified IBM Style 024 or 026 Keypunch with
Burroughs Transiator. An 11 column keyboard is used.

Manufacturer
Incl Stor Access Exclud Stor Access
Micro sec
Microsec
Add
51,000
42,500
241,500
Mult
250,000
Div
300,000
291,500
Construction (Arithmetic unit only)
Vacuum. tubes
180
Diodes
1,400
Arithmetic mode
Serial
Timing
Synchronous
Operation
Sequential

Manufacturer
No. of
Medium.
Words
Drum.
220

STORAGE
No. of
Digits
12 plus sign.

OUTPUT
Manufacturer
Semi-Ganged Printer
24 digits/sec
Punched Paper Tape
10 char/sec
Punched Card
20 or 17 card column/sec
Field modified IEM Style 024 or 026 Keypunch with
Burroughs Transiator

Average
Access
Micro sec
8,500

191

BURROUGHS E 103

CI RCU IT ELEMENTS OF ENTI RE SYSTEM
Manufacturer
Vacuum tubes
Diodes

PERSONNEL REQU I REMENTS

Manuf'acturer
..,.
Training is made available by the. manufacturer to
the user. No assigned personnel are required if
system is operated on an open shop basis.
David Taylor Model Basin
The machine is a simple programmed desk size computer that requires no specialized operators. The
engineer and physicist programs and runs his own
problem.
Classes are held (less than a week long) whenever
the occasion demands.

250
2,000

CHECKI NG FEATURES
Manufacturer
Checking features include pin check (missing pins),
print check, overflow alarm, memory alarm in case
of failure to read or write properly, and keyboard
check.

POWER, SPACE, WEIGHT, AND SITE PREPARATION
Manufacturer
Power, cOlllputer
1.85 Kw 2.2 ¥:VA 0.85 pf
Volume, computer
40 cu ft
Area, computer
16 sq ft
Room size
10 :ft x 10 ft
Floor loading
93 lbs/sq ft
Weight, computer
1,500 lbs
Air conditioning is required if room temperature
is higher than 90oF. 1 1/2 tons of air conditioning
is recommended when the room temperature is higher
than 90<>F. Two 3/4 ton window units are' satisfactory.
David 'l'aylor :r.bdel Basin
Room size
Small office approx. 50 sq ft
Air conditioner Window type unit
Capacity, air conditioner
1 Ton
Required 220 volt, single phase, 3 Wire line.

PRODUCTION RECORD
Manufacturer
Number produced to date
210
Number in current operation 166
Number in current production 54
AntiCipated production rate
60/year
Time required for delivery
3 months

RELIAB ILlTY, OPERATI NG EXPER I ENCE v
AND TIME AVAILABILITY

Manufacturer
Design of machine coupled with preventive maintenance
schedule has provided experience of 97.3~ up-time.
David Taylor MOdel Basin
Good time
16.7 Hours/Week (Average)
Attempted to run time
17.2 Hours/Week (Average)
Operating ratio (Good/Attempted to run time) 0.97
Above figures based on period 1 Apr 59 to 31 Mar 60
Passed Customer Acceptance Test 11 Jun 57
Time is not available for rent to outside organizations.

ADDITIONAL FEATURES AND REMARKS
Manufacturer
Outstanding features include low cost, external
programming, and a great variety of input-output
adjuncts. Printer versatility, due to deSign, includes a semi-ganged printer, front feed carriage,
and an accounting machine carriage movement.
Unique system advantages are that the system is an
ideal open shop computer and is perfectly suited
for bUSiness, engineering, statistical and scientific
computing.

FUTURE PLANS
Manufacturer
System will be up-dated on a continuing basis.

COST PRICE AND RENTAL RATES
p

Manufacturer
Monthly
Cost
Rental
E 103 Computer
$29,750
$875
Paper Tape Input
2,950
85
Duplex Tape Reader
2,150
65
Punched Card Input
3,450
105
Punched Card Output
2,375
70
Multiple Input Adapter
20
575
Punched Tape Output
2,950
85
First year maintenance is rendered gratis on purchase, $2,OOO/year including maintenance, parts,
travel time, thereafter. Maintenance is included
in lease rate.
David Taylor Model Basin
Basic computer expanded memory drum, tape input and
tape output rent at $l,380/month.

BURROUGHS E 103

I NSTALLATI ONS

David Taylor Model Basin
Hydromechanics Laboratory
Washington 7, D. C.

192

193

BURROUGHS E 103

eee

REAL TI ME

General Purpose Real Time Tracking Computer

Photo by Computer Control Company, Incorporated

Front View

APPLICATIONS
The system was specifically designed for use in providing real-time command signals to position two
85' parabolic antennas from various input sources.
The computations involve parallel correction, orbital
integration, coordinate translation, rotation and
conversion. The computation must be slaved to real
time and solution time must be extremely fast to reduce system real time phase shift. Flexibility and
future system requirements are provided by the general purpose stored program philosophy.

CCC REAL TIME

MANUFACTURER
Computer Control Company, Incorporated

PROGRAMMING AND NUMERICAL SYSTEM
Internal number system
Binary
Binary digits/word
25
Binary digitS/instruction
25
Instructions per word
1
Instructions decoded
48
Arithmetic system
Fixed point
Instruction type
One plus one
Instruction contains one operand address and next
instruction address
Number range
±1

Photo by

Rear Vl.e"W
Instruction word format

Timing

Operation

Incorporated

Synchronous
Sequential

Index Control

Operation Code

STORAGE

Automatic built-in subroutines include sine/cosine
resolver, octant reduction, and Binary Coded DecimalBinary conversion.
There are 3 index registers which may be incremented~ replaced or cleared and are capable of modifying either address under control of two index control bits located in each instruction.

No. of
Words
320

Media
Acoustic Delay Line
(Instruction Storage)
160
Acoustic Dela) Line
(Data Storage
Electromagnetic
8
Delay Line

ARITHMETIC UNIT
Operation

~ompu~~L· von~ro~ ~ompany,

No. of
Digits
8,000

Access
Micro sec
500 Avg.

4,000

250 Avg.

200

25

INPUT

Inel Stor Access
Micro sec
25

Exclud Stor Access
Microsec
Add
25
MUlt
75
50
Construction (Arithmetic unit only)
Transistors
540
Arithmetic mode
Serial-parallel
Additions are performed in serial, multiplication
is performed in serial-parallel to achieve 50 microsec multiply time.

Speed
Media
Paper Tape
60 octal digits/sec
Program input tape and position command tape
Antenna Readout
4,000 18 bit words/sec
4 registers containing antenna positions of azimuth,
elevation, hour angle, and declination
1,000 readings/sec
Theodolite
Keyboard
The read time from central range timing system is
also made available to the computer for programming
utilization.

195

CCC REAL TIME

Photo by Computer Control Company, Incorporated

Digital Servo

OUTPUT
Media
Speed
:Readout to Digital Servo 1 reading/sec
Computer output drives 4 command registers, two
for each antenna.
Printer
4 words/sec

POWER, SPACE~ WEIGHT o AND SITE PREPARATION
Power, computer
Volume, computer &
digital servos
Area, computer & servos
Floor loading
Weight, comPuter

CI RCU IT ELEMENTS OF ENTI RE SYSTEM
Type

Dlodes
Transistors

CCC REAL TIME

Quantity
22,000
2,700

0.4 Kw

105 cu ft
15
150
150
2,200

sq ft
Ibs/sq ft
Ibs concen max
Ibs

RELIABILITY. OPERATING EXPERIENCE,
AND TIME AVAILABILITY

PRODUCTION RECORD
Number produced to date
Number in current operation
Time required for delivery

System features and construction techniques utilized
by manufacturer to insure required reliability i~­
cludes completely transistorized and modularized
construction. Package types are limited to 8. 98~
of the systems utilize 4 package types.

1

1

6 months

COSTv PRICE AND RENTAL RATES
The cost of the entire system, including 2 digital
servo racks and all development, installation and
programs is $330,000.

ADDITIONAL FEATURES AND REMARKS
The arithmetic unit is designed to perform fast computation of trigonometric functions. The quantity
a + bx + c may be formed in 50 microsec. The system
operates in real time and is synchronized to external
range timing system.

PERSONNEL REQU I REMENTS
One 8-Hour Shift
Operators
Engineers

1
1

Training made available by the manufacturer to user
includes operation and maintenance. The programs
having once been prepared are utilized without need
of further programming unless the computer is to be
used for new and different modes of operation.
Since the existing programs meet the present system
needs, no current programming effort is utilized.

191

eee

REAL TIME

CDC 160

MANUFACTURER
Control Data Corporation

Control Data Corporation MOdel 160

Photo by Control Data Corporation

APPLICATIONS
The fields of application include off-line data
conversion, data processing - scientific, data processing - commercial, construction, machine tool
design, optical design, data acquisition and data
reduction, and as a satellite system with the CDC
1604 Computer.

in Arabic numerals.
Instruction word format
Function
6 bits

ARITHMETIC UNIT

PROGRAMMING AND NUMERICAL SYSTEM

Operation

Incl Stor Access Exclud Stor Access
Microsec
Micro sec
Add
6.4, 12.8, 19.2
6.4
Mult
Programmed
1, 000
Div
Programmed
1,800
Construction (Arithmetic unit only)
Transistors and Diodes
Arithmetic mode
Parallel
Timing
Asynchronous
Operation
Sequential

Internal number system
Binary
Binary digits/word
12
Binary digits/instruction 12
Instructions/word
1
Instructions decoded
63
12
Arithmetic system
Fixed point fud 2
- 1
Instruction type
One address
Flexible addressing modes include no address, direct address, indirect address, and relative address.
Information in registers shown on proJection display

CDC 160

Address
6 bits

198

CI RCU IT ELEMENTS OF ENTI RE SYSTEM
Type

Diodes
Transistors
Magnetic Cores

Quantity
7,000
1,400
49,152

POWER, SPACE, WEIGHT, AND SITE PREPARATION
Power, computer only
0.7 Kw
1.0 pf
Volume, computer
20 cu ft
Area, computer
10 sq ft
Floor loading
700 lbs concen max
Room size is dependent on peripheral equipment selected.
Weight, computer
700 lbs
Air conditioner is dependent on room size and peripheral equipment. System uses 11Ov, 60 cycle pawer.

PRODUCTION RECORD
Number produced to date
Number in current operation
Number in current production
AntiCipated production rates
Time required for delivery

7
4
25
1 per week
6 months

COST, PRICE AND RENTAL RATES
Purchase
Price
$60,000
10,500
47,000
37,000

160 Computer
Electric Typewriter
1609 Card Read & Punch Unit
Basic Ma~etic Tape Unit
(30 KC)
Additional Magnetic Tape
20,500 (ea)
512 (ea)
Units (30 KC)
Basic Ma~etic Tape Unit
32,000
800
(15 KC)
Additional Magnetic Tape
15,500 (ea)
390 (ea)
Units (15 KC)
1606 High Speed Printer
110,000
3,300
All prices are f.o.b. MinneapoliS, Minnesota, and do
not include Federal, State and Local Taxes which may
be applicable. Subject to change without notice.

Diagram by Control Data Corporation

STORAGE
No. of
No. of
Medium
Words
Digits
Core Storage 4,096
49 and 52 bits
Magnetic Tape
No. of units that can be connected
30
No. of chars/linear inch of tape
200
Channels or tracks on the tape
7
Blank tape separating each record
0.75
Tape speed
75 or 150
Transfer rate
15,000 or 30,000
Start time
5
Stop time
5
Average time for experienced
45
operator to change reel of tape
Physical properties of tape
Width
1/2
Length of reel
3,600
Composition

Media
Paper Tape (Ferranti)
Typewriter

INPUT

Access
Microsec
6.4
Units
Chars/inch
Tracks/tape
Inches
Inches/sec
Chars/sec
Millisec
Millisec
Seconds

PERSONNEL REQU I REMENTS
One 8-Hour Shift
Programmers
2
Technicians
1
Training made available by the manufacturer to
users includes regularly scheduled training courses
are made available to customer personnel. Cost of
training is included in the equipment price.

Inches
Feet
Mylar

RELIABILITY, OPERATING EXPERIENCE,
AND TIME AVAILABILITY

Speed
350 char/sec

System features and construction techniques utilized
by manufacturer to insure required reliability includes solid state unitized construction and wide
tolerances designed into all circuits.

Speed
60 char/sec
10 char/sec

Outstanding features include high speed input-output,
flexible address features, low cost, and magnetic
core memory.
Unique system advantages include satellite operation
with Control Data Corporation 1604 Computer, small
size, and high speed.

ADDITIONAL FEATURES AND REMARKS

OUTPUT
Media
Teletype Punch
Typewriter

Lease Price/
Month
$1,500
262
1,175
925

199

CDC 160



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