Lexikon's History of Computing

1956 Summary of Computers Installed and On Order

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The mid-1950's saw a tremendous increase in the demand for computing equipment. IBM had clearly become the leader in sales, with Remington Rand in second place.
The following table lists types of computers
installed and on order as of September 1956.

Computer Model

Company Name

# Delivered

# On Order

Bendix G-15

Bendix Aviation Corporation

20

10

Bizmac (RCA)

Radio Corporation of America

2

1

Burroughs E-101

Burroughs Corporation

54

37

Datamatic 1000

Datamatic Corporation

0

2

Datron

Electro Data Corporation

40

40

Elecom 50

Underwood Corporation

0

40

Elecom 100

Underwood Corporation

3

0

Elecom 120

Underwood Corporation

5

0

Elecom 125

Underwood Corporation

1

3

Elecom 200

Underwood Corporation

1

0

IBM 604

IBM Corporation

2,820

80

IBM 607

IBM Corporation

249

124

IBM 608

IBM Corporation

0

35

IBM CPC

IBM Corporation

128

7

IBM 650

IBM Corporation

403

930

IBM 701

IBM Corporation

19

0

IBM 702

IBM Corporation

14

0

IBM 704

IBM Corporation

22

58

IBM 705

IBM Corporation

24

133

Monrobot III

Monroe Calculating Machine Co.

1

0

Monrobot IV

Monroe Calculating Machine Co.

1

0

Monrobot VI

Monroe Calculating Machine Co.

5

4

NCR 102

National Cash Register Company

25

5

Readix

J.B.Rea Company

3

0

Royal PrecisionLGP-30

Royal Precision Corp. & Librascope

0

9

TR Reservation System

Teleregister Corporation

2

6

TR Bank System

Teleregister Corporation

0

3

Univac I

Remington Rand; Sperry Corporation

31

14

Univac II

Remington Rand: Univac Division

0

35

Univac 66/120

Remington Rand; Univac Division

266

48

Univac 1103, 1103A

Remington Rand; Univac Division

17

16

Univac File Computer

Remington Rand; Univac Division

4

100+

Reference: "Computers and Automation," December 1956

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