* Based on this survey, all others based on 1961 survey.
| Initial Date | of Operation |
System
| May | 1950 | SEAL
| . | 1950 | WHIRLWIND II
| Mar | 1951 | SWAC
| Mar | 1951 | UNIVAC I
| . | 1951 | EDVAC
| Mar | 1952 | MANIAC I
| Mar | 1952 | ORDVAC
| Sep | 1952 | ILLIAC
| . | 1952 | ELECOM 100
| Mar | 1953 | LOGISTICS
| Apr | 1953 | OARAC
| May | 1953 | IBM 701
| Aug | 1953 | MAGNEFILE D
| Aug | 1953 | UNIVAC 1103 1103 A
| Dec | 1953 | UDEC I II III
| . | 1953 | IBM 6o4
| . | 1953 | NATIONAL 102 A
| Feb | 1954 | MAGNEFILE B
| Mar | 1954 | JOHNNIAC
| Apr | 1954 | DYSEAC
| Jun | 1954 | ALWAC II
| Jun | 1954 | CIRCLE
| Jul | 1954 | MODAL 5014
| Sep | 1954 | MODAL 404
| . | 1954 | BENDIX D 12
| . | 1954 | BURROUGHS 204
| . | 1954 | BURROUGHS 205
| . | 1954 | IBM 650 RAMAC TAPES
| . | 1954 | WISC
| Feb | 1955 | IBM 702
| Feb | 1955 | MONROBOT III
| Feb | 1955 | NORC
| Mar | 1955 | MINIAC II
| Mar | 1955 | MONROBOT V
| Aug | 1955 | UNIVAC 1101
| Nov | 1955 | BIZMAC I
| . | 1955 | ALWAC III E
| . | 1955 | BURROUGHS E 101
| . | 1955 | IBM 705 1 11
| . | 1955 | MODAL 410
| . | 1955 | PENNSTAC
| . | 1955 | UNIVAC 6o
| . | 1955 | UNIVAC 120
| . | 1955 | UNIVAC 1102
| Feb | 1956 | READIX
| Apr | 1956 | AF/CRC
| Apr | 1956 | IBM 704
| Oct | 1956 | MODAC 414
| . | 1956 | BENDIX G 15
| . | 1956 | BIZMAC II
| . | 1956 | ELECOM 50
| . | 1956 | ELECOM 120
| . | 1956 | ELECOM 125 125FP
| . | 1956 | IBM 6o8
| . | 1956 | LEPRECHAUN
| . | 1956 | * LGP 30
| . | 1956 | MONROBOT MU
| . | 1956 | NAREC
| . | 1956 | * PHILCO 1000
| . | 1956 | RECOMP I CP 266
| . | 1956 | TELEREGISTER MAGNET INVENT CONT
| Sep | 1957 | GEORGE
| Sep | 1957 | UNIVAC FILE 0
| Nov | 1957 | AN/FSQ 7 AN/FSQ 8 (SAGE)
| . | 1957 | IBM 709
| . | 1957 | LINCOLN TX 0
| . | 1957 | MANIAC II
| . | 1957 | PHILCO 2000
| May | 1958 | UNIVAC II
| Sep | 1958 | AN/MJQ 1 REDSTONE
| . | 1958 | IBM 61o
| . | 1958 | LINCOLN TX 2
| . | 1958 | WRU SEARCHING SELECTOR
| Jan | 1959 | RCA 501
| Feb | 1959 | BURROUGHS 220
| Feb | 1959 | UNIVAC 1105
| Jul | 1959 | * CYCLONE
| Jul | 1959 | GE 100 ERMA
| Sep | 1959 | FOSDIC
| Nov | 1959 | NATIONAL 304
| . | 1959 | AN/TYK 6 v BASIC PAC
| . | 1959 | GE 210
| . | 1959 | LIBRASCOPE AIR TRAFFIC
| . | 1959 | LIBRASCOPE ASN 24
| . | 1959 | RASTAD
| . | 1959 | RPC 9000
| . | 1959 | Rw 300
| . | 1959 | TRICE
| . | 1959 | UNIVAC SOLID STATE 80/90
| Jan | 1960 | CDC 1604
| Jan | 1960 | HUGHES BM GUIDANCE
| Jan | 1960 | UNIVERSAL DATA TRANS
| Apr | 1960 | SYLVANIA UDOFTT
| Apr | 1960 | UNIVAC LARC
| Aug | 1960 | BENDIX CUBIC TRACKER
| Sep | 1960 | * IBM 1401
| Oct | 1960 | BURROUGHS D 209
| . | 1960 | AMOS IV
| . | 1960 | AN/USQ 20
| . | 1960 | CUBIC AIR TRAFFIC
| . | 1960 | CUBIC TRACKER
| . | 1960 | DIANA
| . | 1960 | FADAC
| . | 1960 | * GE 225
| . | 1960 | GENERAL MILLS APSAC
| . | 1960 | GENERAL MILLS AD/ECS
| . | 1960 | GE 312
| . | 1960 | HAMPSHIRE TRTDS 932
| . | 1960 | HRB SINGER
| . | 1960 | HONEYWELL 800
| . | 1960 | HUGHES DIGITAIR
| . | 1960 | INTELEX AIRLINE RESERVATION
| . | 1960 | IBM 1410
| . | 1960 | IBM 7070
| . | 1960 | IBM 7080
| . | 1960 | IBM 7090
| . | 1960 | IBM STRETCH
| . | 1960 | LEEDS NORTHROP 3000
| . | 1960 | LIBRASCOPE MK 130
| . | 1960 | LIBRASCOPE 407
| . | 1960 | LIBRATROL 1000
| . | 1960 | LITTON DATA ASSESSOR
| . | 1960 | MERLIN
| . | 1960 | MOBIDIC A
| . | 1960 MOBIDIC B
| . | 1960 | MOBIDIC C D & 7A
| . | 1960 | NATIONAL 315
| . | 1960 | NATIONAL 390
| . | 1960 | NORDEN VOTE TALLY
| . | 1960 | ORACLE
| . | 1960 | PACKARD BELL 250
| . | 1960 | PERK I II
| . | 1960 | PHILCO 3000
| . | 1960 | PROGRAMMED DATA PROCESSOR
| . | 1960 | RCA 200
| . | 1960 | RCA 300
| . | 1960 | RASTAC
| . | 1960 | Rw 400
| . | 1960 | RE PAC
| . | 1960 | SCRIBE
| . | 1960 | SPEC
| . | 1960 | STORED PROGRAM DDA
| . | 1960 | SYLVANIA S 9400
| . | 1960 | TARGET INTERCEPT
| . | 1960 | UNIVAC III
| . | 1960 | UNIVAC STEP
| . | 1960 | *- VERDAN II
| . | 1960 | WESTINGHOUSE AIRBORNE
| Jul | 1961 | RCA 601
| Jul | 1961 | * UNIVAC SOLID STATE II 80/90
| Nov | 1961 | * BRLESC
| Nov | 1961 | UNIVAC 490
| . | 1961 | AN/TYK 7v INFORMER
| . | 1961 | * ASI 210
| . | 1961 | * BURROUGHS B260/B270/B280
| . | 1961 | * CCC DDP 24
| . | 1961 | * CCC 6B4 TRAINER
| . | 1961 | * CCC 6F4 TRAINER
| . | 1961 | * CONTROL DATA 160A
| . | 1961 | * HUGHES HCM 301
| . | 1961 | IBM 7074
| . | 1961 | ITT BANK LN PROC
| . | 1961 | ITT SPES 025
| . | 1961 | OKLAHOMA UNIVERSITY
| . | 1961 | RCA 110
| . | 1961 | * RECOMP III
| . | 1961 | RICE UNIVERSITY
| . | 1961 | * RPC 4000
| . | 1961 | * TELEREGISTER TELEFILE
| . | 1961 | * TRW 230 130 (AN/UYK-1)
| . | 1961 | * UNIVAC DIG TRNR
| . | 1961 | * UNIVAC 422 TRNG COMP
| . | 1961 | * UNIVAC 1000
| . | 1961 | * UNIVAC 1020
| Mar | 1962 | * BURROUGHS B 5000
| Mar | 1962 | * NORDEN SCRIBE II
| Oct | 1962 | * IBM 1440
| . | 1962 | * AM 943
| . | 1962 | * AM 960
| . | 1962 | * ASI 420
| . | 1962 | * BURROUGHS D 825
| . | 1962 | * CCC DDP 19
| . | 1962 | * CCC 6F2 TRAINER
| . | 1962 | * CONCORD DIG COORD
| . | 1962 | * CONTROL DATA 924
| . | 1962 | * CONTROL DATA 924 A
| . | 1962 | * CORRELATION COMP CC1
| . | 1962 | * DAYSTROM 046
| . | 1962 | * DAYSTROM 136
| . | 1962 | * DAYSTROM 636
| . | 1962 | * GE 312 GARDE
| . | 1962 | * GE 412
| . | 1962 | * HONEYWELL 1800
| . | 1962 | * HUGHES HCM 101
| . | 1962 | * HUGHES HCM 122
| . | 1962 | * HYDAC 2000
| . | 1962 | * HYDAC 2400
| . | 1962 | * IBM 1460
| . | 1962 | * IBM 1620 MOD II
| . | 1962 | * IBM 1710
| . | 1962 | * IBM 7010
| . | 1962 | * IBM 7040
| . | 1962 | * IBM 7044
| . | 1962 | * IBM 7072
| . | 1962 | * IBM 7094 II
| . | 1962 | * ILLIAC II
| . | 1962 | * ITT 7300 MOD II
| . | 1962 | * LGP 21
| . | 1962 | * LIBRASCOPE L 600
| . | 1962 | * MAGLOC I
| . | 1962 | * MANIAC III
| . | 1962 | * MINUTEMAN
| . | 1962 | * NCR 310
| . | 1962 | * PHILCO 210
| . | 1962 | * PHILCO 211
| . | 1962 | * PHILCO 212
| . | 1962 | * PROGRAMMED DATA PROCESSOR 4
| . | 1962 | * SDS 910
| . | 1962 | * SDS 920
| . | 1962 | * SPEDAC 220
| . | 1962 | * SPEDAC 310
| . | 1962 | * TRW 330
| . | 1962 | * UNIVAC 1004 8o/90
| . | 1962 | UNIVAC 1107
| . | 1962 | * UNIVAC 1206
| . | 1962 | * UNIVAC 1212
| . | 1962 | * UNIVAC 1218
| Jan | 1963 | * IBM 6400
| May | 1963 | * HUGHES HCM 201
| Dec | 1963 | * HONEYWELL 400
| Dec | 1963 | * HONEYWELL 1400
| . | 1963 | * AERIS
| . | 1963 | * AGDIC
| . | 1963 | * AN/MSM 42
| . | 1963 | * BURROUGHS D210
| . | 1963 | * CONCORD NUM CNTRL NC5
| . | 1963 | * CONTROL DATA 1604A
| . | 1963 | * CONTROL DATA 3600
| . | 1963 | * GE 200 BANK TRANSIT
| . | 1963 | * GE 215
| . | 1963 | * GE 235
| . | 1963 | * HUGHES HCM 121
| . | 1963 | - HW 15K
| . | 1963 | * ITT 525 VADE
| . | 1963 | * LFE GUESTRON
| . | 1963 | * LIBRASCOPE C141
| . | 1963 | * LIBRASCOPE L90-1
| . | 1963 | * LIBRASCOPE L 2010
| . | 1963 | * LIBRASCOPE L 3055
| . | 1963 | * MINUTEMAN ADVANCED D37B
| . | 1963 | * PACKARD BELL 440
| . | 1963 | * PDS 1020
| . | 1963 | * PDS 1068
| . | 1963 | * RCA 3301 REALCOM
| . | 1963 | * SEMA 2000
| . | 1963 | * SEMAC
| . | 1963 | * TRW 340
| . | 1963 | * UNIVAC 1050
| . | 1963 | * UNIVAC 1824
| . | 1964 | * APOLLO DC
| . | 1964 | -* BURROUGHS B263/B273/B283
| . | 1964 | * CONTROL DATA 6600
| . | 1964 | * HONEYWELL 1800 11
| . | 1964 | *SDS 9300
| |
* Based on the survey, all others based on 1961 survey.
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