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13-00000
MONTHLY COMPUTER CENSUS
Neil Macdonald
Survey Editor
COMPUTERS AND AUTOMATION
The following is a summary made by COMPUTERS AND AUTOMATION of reports and estimates of the number of general purpose digital computers manufactured and installed, or to be manufactured and on order. These figures are mailed to individual computer manufacturers quarterly for their information and review, and for any updating or comments they may care to provide. Please note the variation in dates and reliability of the information. A few manufacturers refuse to give out, confirm, or comment on any figures.
Part 1 of the Monthly Computer Census contains reports for United States manufacturers, A to H, and is published in January, April, July, and October. Part 2 contains reports for United States manufacturers, I to Z, and is published in February, May, August, and November. Part 3 contains reports for manufacturers outside of the United States and is published in March, June, September, and December.
Our census seeks to include all digital computers manufactured anywhere. We invite all manufacturers located anywhere to submit information that would help make these figures as accurate and complete as possible.
The following abbreviations apply:
(A) — authoritative figures, derived essentially from information sent by the manufacturer directly to COMPUTERS AND AUTOMATION
C — figure is combined in a total
(D) — acknowledgment is given to DP Focus, Marlboro, Mass., for their help in estimating many of these figures
E — figure estimated by COMPUTERS AND AUTOMATION
(N) — manufacturer refuses to give any figures on number of installations or of orders, and refuses to comment in any way on those numbers stated here
(R) — figures derived all or in part from information released indirectly by the manufacturer, or from reports by other sources likely to be informed
(S) — sale only, and sale (not rental) price is stated
X — no longer in production
— — information not obtained at press time and/or not released by manufacturer
SUMMARY AS OF OCTOBER 15, 1973
NAME OF MANUFACTURER
NAME OF COMPUTER
DATE OF FIRST INSTALLATION
AVERAGE OR RANGE OF MONTHLY RENTAL $ (000)
NUMBER OF INSTALLATIONS
NUMBER OF UNFILLED ORDERS
In U.S.A.
Outside U.S.A.
In World
Part 2. United States Manufacturers I-Z
IBM
305
12/57
3.6
40
15
55
-
White Plains, N.Y.
650
10/67
4.8
50
18
68
-
(N) (D) (Oct. 1973)
1130
2/66
1.5
2580
1227
3807
-
1401
9/60
5.4
2210
1836
4046
-
1401-G
5/64
2.3
420
450
870
-
1401-H
6/67
1.3
180
140
320
-
1410
11/61
17.0
156
116
272
-
1440
4/63
4.1
1690
1174
2864
-
1460
10/63
10.0
194
63
257
-
1620 I, II
9/60
4.1
285
186
471
-
1800
1/66
5.1
416
148
564
-
7010
10/63
26.0
67
17
84
-
7030
5/61
160.0
4
1
5
-
704
12/55
32.0
12
1
13
-
7040
6/63
25.0
35
27
62
-
7044
6/63
36.5
28
13
41
-
705
11/55
38.0
18
3
21
-
7020, 2
3/60
27.0
10
3
13
-
7074
3/60
35.0
44
26
70
-
7080
8/61
60.0
13
2
15
-
7090
11/59
63.5
4
2
6
-
7094-I
9/62
75.0
10
4
14
-
7094-II
4/64
83.0
6
4
10
-
System/3 Model 6
3/71
1.0
8
-
-
-
System/3 Model 10
1/70
1.1
5
-
-
-
System/3 Model 15
-
-
-
-
-
-
System/7
11/71
0.35 and up
15
-
-
-
360/20
12/65
2.7
7161
6075
13236
1780
360/25
1/68
5.1
1112
759
1871
1287
360/30
5/65
10.3
5487
2535
8022
-
360/40
4/65
19.3
2454
1524
3978
1363
360/44
7/66
11.8
109
57
166
39
360/50
8/65
29.1
1135
445
1580
662
360/65
11/65
57.2
604
144
748
562
360/67
10/65
133.8
65
6
71
99
360/75
2/66
66.9
50
17
67