List of IBM PS/2 models

From Wikipedia, the free encyclopedia

An assortment of IBM PS/2s in various form factors; from left to right: a Server 95, a Model 80, a Model 25, and a PS/2E on top of a Model 56 and a Model 30 286

The Personal System/2 or PS/2 was a line of personal computers developed by International Business Machines (IBM). Released in 1987, the PS/2 represented IBM's third generation of personal computer following the IBM PC and the PC/AT, which were retired following IBM's announcement of the PS/2 in April 1987. Most PS/2s featured the Micro Channel architecture bus—a proprietary standard which was IBM's attempt at recapturing control of the PC market. However some PS/2 models at the low end featured ISA buses, which IBM included with their earlier PCs and which were widely cloned due to being a mostly-open standard. Many models of PS/2 were made, which came in the form of desktops, towers, portables, laptops and notebooks.

Notes[]

Legend
  ISA
  Micro Channel
  MCA/ISA
Explanatory notes
  • Built-in or optional monitors are CRTs unless mentioned otherwise.
  • The Space Saving Keyboard is a 87-key numpad-less version of the Model M.[1]
  • The 25 Collegiate, intended for college students, had two 720 KB floppy drives, maxed out the RAM to 640 KB, and came packaged with the official PS/2 Mouse, Windows 2.0, and four blank floppy disks.[1][2]
  • Financial workstations came packaged with a 50-key function keypad and were intended for use in banks.[1][3]
  • LS models are "diskless workstations": essentially the same as their non-LS counterparts but without floppy drives or hard drives and that connect to networks using Ethernet or Token Ring adapters.[4]
  • Ultimedia models shipped with a microphone and included SCSI CD-ROMs, M-Audio sound adapter cards and volume controls and headphone and microphone jacks at the front of the case.[5]
  • Array models are PS/2 Servers with support for RAID.[6]

Models[]

Main line[]

IBM PS/2 models
Model IBM P/N Processor Clock speed
(MHz)		 Bus L2 cache
(KB)		 No. of
slots		 No. of
drive bays		 FDD HDD Stock
memory		 Monitor Form factor Date introduced Notes Ref(s).
25 8525-001 Intel 8086 8 (0 w) ISA, 8-bit 0 2 2 one 720 KB none 512 KB 12-in. monochrome All-in-one August 1987 Space Saving Keyboard [7]
25 8525-004 Intel 8086 8 (0 w) ISA, 8-bit 0 2 2 one 720 KB none 512 KB 12-in. color All-in-one August 1987 Space Saving Keyboard [7]
25 8525-G01 Intel 8086 8 (0 w) ISA, 8-bit 0 2 2 one 720 KB none 512 KB 12-in. monochrome All-in-one August 1987 [1]
25 8525-G04 Intel 8086 8 (0 w) ISA, 8-bit 0 2 2 one 720 KB none 512 KB 12-in. color All-in-one August 1987 [1]
25 LS 8525-L01 Intel 8086 8 (0 w) ISA, 8-bit 0 2 2 one 720 KB none 512 KB 12-in. monochrome All-in-one August 1987 Token Ring [1]
25 LS 8525-L04 Intel 8086 8 (0 w) ISA, 8-bit 0 2 2 one 720 KB none 512 KB 12-in. color All-in-one August 1987 Token Ring [1]
25 Collegiate 8525-C02 Intel 8086 8 (0 w) ISA, 8-bit 0 2 2 two 720 KB none 640 KB 12-in. monochrome All-in-one August 1987 Space Saving Keyboard [8]
25 Collegiate 8525-K02 Intel 8086 8 (0 w) ISA, 8-bit 0 2 2 two 720 KB none 640 KB 12-in. monochrome All-in-one August 1987 [8]
25 Collegiate 8525-C05 Intel 8086 8 (0 w) ISA, 8-bit 0 2 2 two 720 KB none 640 KB 12-in. color All-in-one August 1987 Space Saving Keyboard [8]
25 Collegiate 8525-K05 Intel 8086 8 (0 w) ISA, 8-bit 0 2 2 two 720 KB none 640 KB 12-in. color All-in-one August 1987 [8]
25 286 8525-006 Intel 80286 10 (1 w) ISA, 16-bit 0 2 2 one 1.44 MB none 1 MB 12-in. color All-in-one October 1990 Space Saving Keyboard [9]
25 286 8525-036 Intel 80286 10 (1 w) ISA, 16-bit 0 2 2 one 1.44 MB 30 MB 1 MB 12-in. color All-in-one October 1990 [9]
25 286 8525-G06 Intel 80286 10 (1 w) ISA, 16-bit 0 2 2 one 1.44 MB none 1 MB 12-in. color All-in-one October 1990 Space Saving Keyboard [9]
25 286 8525-G36 Intel 80286 10 (1 w) ISA, 16-bit 0 2 2 one 1.44 MB 30 MB 1 MB 12-in. color All-in-one October 1990
25 SX 8525-K00 Intel 80386SX 20 ISA, 16-bit 0 3 2 one 1.44 MB 1 MB 12-in. color All-in-one April 1992 [10][11]
25 SX 8525-K01 Intel 80386SX 20 ISA, 16-bit 0 3 2 one 1.44 MB 1 MB 12-in. color All-in-one April 1992 Ethernet [10][11]
25 SX 8525-L02 Intel 80386SX 20 ISA, 16-bit 0 3 2 one 1.44 MB 1 MB 12-in. color All-in-one April 1992 Token Ring [10][11]
30 8530-002 Intel 8086 8 (0 w) ISA, 8-bit 0 3 2 two 720 KB none 640 KB optional Desktop April 1987 [12]
30 8530-021 Intel 8086 8 (0 w) ISA, 8-bit 0 3 2 one 720 KB 20 MB 640 KB optional Desktop April 1987 [12]
30 286 8530-E01 Intel 80286 10 (1 w) ISA, 16-bit 0 3 2 one 1.44 MB none 512 KB optional Desktop September 1988 [13]
30 286 8530-E21 Intel 80286 10 (1 w) ISA, 16-bit 0 3 2 one 1.44 MB 20 MB 512 KB optional Desktop September 1988 [13]
30 286 8530-E31 Intel 80286 10 (1 w) ISA, 16-bit 0 3 2 one 1.44 MB 30 MB (ESDI) 512 KB optional Desktop September 1989 [14]
30 286 8530-E41 Intel 80286 10 (1 w) ISA, 16-bit 0 3 2 one 1.44 MB 40 MB (ESDI) 512 KB optional Desktop April 1991 [15]
30 286 8530-R02 Intel 80286 10 (1 w) ISA, 16-bit 0 3 2 one 1.44 MB 40 MB (ESDI) 512 KB optional Desktop September 1988 Financial workstation [1]
30 286 8530-R21 Intel 80286 10 (1 w) ISA, 16-bit 0 3 2 one 1.44 MB 40 MB (ESDI) 512 KB optional Desktop September 1988 Financial workstation [1]
50 8550-021 Intel 80286 10 (1 w) MCA, 16-bit 0 4 3 one 1.44 MB 20 MB 1 MB optional Desktop April 1987 [16]
60 8560-041 Intel 80286 10 (1 w) MCA, 16-bit 0 8 4 one 1.44 MB 44 MB 1 MB optional Tower April 1987 [17]
60 8560-071 Intel 80286 10 (1 w) MCA, 16-bit 0 8 4 one 1.44 MB 70 MB 1 MB optional Tower April 1987 [17]
76 9576-0U6
9576-DU6 		Intel 80486SX 33 MCA, 32-bit 0 3 3 one 2.88 MB 104 MB 8MB optional Desktop October 1992 [18]
76 9576-0UA
9576-DUA 		Intel 80486SX 33 MCA, 32-bit 0 3 3 one 2.88 MB 212 MB 8MB optional Desktop October 1992 [18]
76 9576-OPTION Intel 80486DX2 66 MCA, 32-bit 0 3 3 one 2.88 MB 212 MB 8 MB optional Desktop October 1992 [19]
35 LS 8535-14X Intel 80386SX 20 ISA, 16-bit 0 3 2 none none 2 MB optional Desktop January 1991 Ethernet [20]
35 LS 8535-24X Intel 80386SX 20 ISA, 16-bit 0 3 2 none none 2 MB optional Desktop January 1991 Token Ring [20]
35 SLC 8535-050 IBM 386SLC 20 (0 w) ISA, 16-bit 0 3 2 one 1.44 MB none 2 MB optional Desktop April 1992 [21]
35 SLC 8535-055 IBM 386SLC 20 (0 w) ISA, 16-bit 0 3 2 one 1.44 MB 80 MB 2 MB optional Desktop April 1992 [21]
35 SX 8535-040 Intel 80386SX 20 (0–2 w) ISA, 16-bit 0 3 2 one 1.44 MB none 2 MB optional Desktop January 1991 [20]
35 SX 8535-043 Intel 80386SX 20 (0–2 w) ISA, 16-bit 0 3 2 one 1.44 MB 40 MB 2 MB optional Desktop January 1991 [20]
40 SLC 8540-050 IBM 386SLC 20 (0 w) ISA, 16-bit 0 5 4 one 1.44 MB none 2 MB optional Desktop April 1992 [22]
40 SLC 8540-055 IBM 386SLC 20 (0 w) ISA, 16-bit 0 5 4 one 1.44 MB 80 MB 2 MB optional Desktop April 1992 [22]
40 SX 8540-040 Intel 80386SX 20 (0–2 w) ISA, 16-bit 0 5 4 one 1.44 MB none 2 MB optional Desktop June 1991 [23]
40 SX 8540-043 Intel 80386SX 20 (0–2 w) ISA, 16-bit 0 5 4 one 1.44 MB 40 MB 2 MB optional Desktop June 1991 [23]
40 SX 8540-045 Intel 80386SX 20 (0–2 w) ISA, 16-bit 0 5 4 one 1.44 MB 80 MB 2 MB optional Desktop June 1991 [23]
50 Z 8550-031 Intel 80286 10, 0 w MCA, 16-bit 0 4 3 one 1.44 MB 30 MB 1 MB optional Desktop June 1988 [24]
50 Z 8550-061 Intel 80286 10, 0 w MCA, 16-bit 0 4 3 one 1.44 MB 60 MB 1 MB optional Desktop June 1988 [24]
53 LS 9553-1BX Cyrix Cx486SLC2 50 MCA, 16-bit 3 3 none none 4 MB optional Desktop November 1993 Reply board, Ethernet [25]
53 LS 9553-2BX Cyrix Cx486SLC2 50 MCA, 16-bit 3 3 none none 4 MB optional Desktop November 1993 Reply board, Token Ring [25]
53 SLC2 9553-0B7 Cyrix Cx486SLC2 50 MCA, 16-bit 3 3 one 1.44 MB 120 MB 4 MB optional Desktop November 1993 Reply board [25]
53 SLC2 9553-0BB Cyrix Cx486SLC2 50 MCA, 16-bit 3 3 one 1.44 MB 250 MB 4 MB optional Desktop November 1993 Reply board [25]
55 LS 8555-LE0 Intel 80386SX 16 (0–2 w) MCA, 16-bit 0 3 2 none none 2 MB optional Desktop May 1989 [26]
55 LS 8555-LT0 Intel 80386SX 16 (0–2 w) MCA, 16-bit 0 3 2 none none 2 MB optional Desktop May 1989 [26]
55 SX 8555-031 Intel 80386SX 16 (0–2 w) MCA, 16-bit 0 3 2 one 1.44 MB 30 MB 2 MB optional Desktop May 1989 [26]
55 SX 8555-061 Intel 80386SX 16 (0–2 w) MCA, 16-bit 0 3 2 one 1.44 MB 60 MB 2 MB optional Desktop May 1989 [26]
56 LS 8556-24X Intel 80386SX 20 MCA, 16-bit 0 3 3 none none 4 MB optional Desktop October 1991 [27]
56 SLC 8556-055 IBM 386SLC 20 MCA, 16-bit 0 3 2 one 2.88 MB 80 MB 4 MB optional Desktop February 1992 [28]
56 SLC 8556-059 IBM 386SLC 20 MCA, 16-bit 0 3 2 one 2.88 MB 160 MB 4 MB optional Desktop February 1992 [28]
56 SLC LS 8556-15X IBM 386SLC 20 MCA, 16-bit 0 3 2 none none 4 MB optional Desktop February 1992 Ethernet [28]
56 SLC LS 8556-25X IBM 386SLC 20 MCA, 16-bit 0 3 2 none none 4 MB optional Desktop February 1992 Token Ring [28]
56 SLC2 9556-DB6 Cyrix Cx486SLC2 50 MCA, 16-bit 0 3 2 one 2.88 MB 104 MB 8 MB optional Desktop October 1992 [29]
56 SLC2 9556-DBA Cyrix Cx486SLC2 50 MCA, 16-bit 0 3 2 one 2.88 MB 212 MB 8 MB optional Desktop October 1992 [29]
56 SX 8556-043 Intel 80386SX 20 MCA, 16-bit 0 3 2 one 2.88 MB 40 MB 4 MB optional Desktop October 1991 [27]
56 SX 8556-045 Intel 80386SX 20 MCA, 16-bit 0 3 3 one 2.88 MB 80 MB 4 MB optional Desktop October 1991 [27]
56 SX 8556-049 Intel 80386SX 20 MCA, 16-bit 0 3 3 one 2.88 MB 160 MB 4 MB optional Desktop October 1991 [27]
57 SLC 8557-055 IBM 386SLC 20 MCA, 16-bit 0 5 4 one 2.88 MB 80 MB 4 MB optional Desktop February 1992 Token Ring [30]
57 SLC 8557-059 IBM 386SLC 20 MCA, 16-bit 0 5 4 one 2.88 MB 160 MB 8 MB optional Desktop February 1992 [30]
57 SLC 8557-05F IBM 386SLC 20 MCA, 16-bit 0 5 4 one 2.88 MB 400 MB 8 MB optional Desktop February 1992 [30]
57 SLC2 9557-DB6 Cyrix Cx486SLC2 50 MCA, 16-bit 5 4 one 2.88 MB 104 MB 8 MB optional Desktop October 1992 [31]
57 SLC2 9557-DBA Cyrix Cx486SLC2 50 MCA, 16-bit 5 4 one 2.88 MB 212 MB 8 MB optional Desktop October 1992 [31]
57 SX 8557-045 Intel 80386SX 20 MCA, 16-bit 0 5 4 one 2.88 MB 80 MB 4 MB optional Desktop June 1991 [32]
57 SX 8557-049 Intel 80386SX 20 MCA, 16-bit 0 5 4 one 2.88 MB 160 MB 4 MB optional Desktop June 1991 [32]
57 Ultimedia 9557-1BA Cyrix Cx486SLC2 50 MCA, 16-bit 5 4 one 2.88 MB 212 MB 8 MB optional Desktop September 1992 [33]
57 Ultimedia 9557-2BA Cyrix Cx486SLC2 50 MCA, 16-bit 5 4 one 2.88 MB 212 MB 8 MB optional Desktop September 1992 ActionMedia II Adapter [33]
65 SX 8565-061 Intel 80386SX 16 MCA, 16-bit 0 8 4 one 1.44 MB 60 MB 2 MB optional Desktop June 1990 [34]
65 SX 8565-121 Intel 80386SX 16 MCA, 16-bit 0 8 4 one 1.44 MB 120 MB 2 MB optional Desktop June 1990 [34]
70 8570-A21 Intel 80386DX 25 MCA, 32-bit 64 3 3 one 1.44 MB 120 MB 2 MB optional Desktop June 1988 [35]
70 8570-A61 Intel 80386DX 25 MCA, 32-bit 64 3 3 one 1.44 MB 60 MB 2 MB optional Desktop June 1988 [35]
70 8570-B21 Intel 80486DX 25 MCA, 32-bit 0 3 3 one 1.44 MB 120 MB 2 MB optional Desktop January 1990 [36]
70 8570-B61 Intel 80486DX 25 MCA, 32-bit 0 3 3 one 1.44 MB 60 MB 2 MB optional Desktop January 1990 [36]
70 8570-E61 Intel 80386DX 16 MCA, 32-bit 0 3 3 one 1.44 MB 60 MB 1 MB optional Desktop June 1988 [35]
70 8570-061 Intel 80386DX 20 MCA, 32-bit 0 3 3 one 1.44 MB 60 MB 2 MB optional Desktop June 1988 [35]
70 8570-121 Intel 80386DX 20 MCA, 32-bit 0 3 3 one 1.44 MB 120 MB 2 MB optional Desktop June 1988 [35]
77 9577-0NA Intel 80486DX2 66 MCA, 32-bit 0 5 4 one 2.88 MB 212 MB 8 MB optional Desktop October 1992 [5]
77 9577-0NF Intel 80486DX2 66 MCA, 32-bit 0 5 4 one 2.88 MB 400 MB 8 MB optional Desktop October 1992 [5]
77 9577-0UA Intel 80486SX 33 MCA, 32-bit 0 5 4 one 2.88 MB 400 MB 8 MB optional Desktop October 1992 [5]
77 9577-0UF Intel 80486SX 33 MCA, 32-bit 0 5 4 one 2.88 MB 212 MB 8 MB optional Desktop October 1992 [5]
77 Ultimedia 9577-1NA Intel 80486DX2 66 MCA, 32-bit 0 5 4 one 2.88 MB 212 MB 8 MB optional Desktop October 1992 [5]
77 Ultimedia 9577-1UA Intel 80486DX2 33 MCA, 32-bit 0 5 4 one 2.88 MB 212 MB 8 MB optional Desktop October 1992 [5]
80 8580-041 Intel 80386DX 16 MCA, 32-bit 0 8 5/6 one 1.44 MB 44 MB 1 MB optional Tower April 1987 [37]
80 8580-071 Intel 80386DX 16 MCA, 32-bit 0 8 5/6 one 1.44 MB 70 MB 1 MB optional Tower April 1987 [37]
80 8580-A21 Intel 80386DX 25 MCA, 32-bit 64 8 5/6 one 1.44 MB 120 MB 4 MB optional Tower April 1987 [37]
80 8580-A31 Intel 80386DX 25 MCA, 32-bit 64 8 5/6 one 1.44 MB 320 MB 4 MB optional Tower April 1987 [37]
80 8580-111 Intel 80386DX 20 MCA, 32-bit 0 8 5/6 one 1.44 MB 115 MB 2 MB optional Tower April 1987 [37]
80 8580-121 Intel 80386DX 20 MCA, 32-bit 0 8 5/6 one 1.44 MB 120 MB 2 MB optional Tower April 1987 [37]
80 8580-321 Intel 80386DX 20 MCA, 32-bit 0 8 5/6 one 1.44 MB 320 MB 2 MB optional Tower April 1987 [37]
80 8580-081 Intel 80386DX 20 MCA, 32-bit 0 8 5/6 one 1.44 MB 80 MB 2 MB optional Tower October 1990 [38]
80 8580-161 Intel 80386DX 20 MCA, 32-bit 0 8 5/6 one 1.44 MB 160 MB 2 MB optional Tower October 1990 [38]
80 8580-A16 Intel 80386DX 25 MCA, 32-bit 64 8 5/6 one 1.44 MB 160 MB 4 MB optional Tower October 1990 [38]
90 XP 486 8590-0G5 Intel 80486SX 20 MCA, 32-bit 0 4 4 one 1.44 MB 80 MB 4 MB optional Desktop October 1990 [39]
90 XP 486 8590-0G9 Intel 80486SX 20 MCA, 32-bit 0 4 4 one 1.44 MB 160 MB 4 MB optional Desktop October 1990 [39]
90 XP 486 8590-0H5 Intel 80486SX 25 MCA, 32-bit 0 4 4 one 1.44 MB 80 MB 4 MB optional Desktop October 1990 [39]
90 XP 486 8590-0H9 Intel 80486DX 25 MCA, 32-bit 0 4 4 one 1.44 MB 160 MB 4 MB optional Desktop October 1990 [39]
90 XP 486 8590-0J5 Intel 80486DX 25 MCA, 32-bit 0 4 4 one 1.44 MB 80 MB 4 MB optional Desktop October 1990 [39]
90 XP 486 8590-0J9 Intel 80486SX 25 MCA, 32-bit 0 4 4 one 1.44 MB 160 MB 4 MB optional Desktop October 1990 [39]
90 XP 486 8590-0KD Intel 80486SX 33 MCA, 32-bit 0 4 4 one 1.44 MB 320 MB 4 MB optional Desktop October 1990 [39]
90 XP 486 9590-0LA Intel 80486DX2 50 MCA, 32-bit 0 4 4 one 2.88 MB 212 MB 8 MB optional Desktop March 1993 [40]
90 XP 486 9590-0LF Intel 80486DX2 50 MCA, 32-bit 0 4 4 one 2.88 MB 400 MB 8 MB optional Desktop March 1993 [40]
90 XP 486 9590-KLA Intel 80486DX2 50 MCA, 32-bit 0 4 4 one 2.88 MB 212 MB 8 MB optional Desktop March 1993 OS/2 [40]
90 XP 486 9590-KLG Intel 80486DX2 50 MCA, 32-bit 0 4 4 one 2.88 MB 540 MB 8 MB optional Desktop March 1993 OS/2 [40]
90 XP 486 9590-DLA Intel 80486DX2 50 MCA, 32-bit 0 4 4 one 2.88 MB 212 MB 8 MB optional Desktop March 1993 Windows 3.1 [40]
90 XP 486 9590-DLG Intel 80486DX2 50 MCA, 32-bit 0 4 4 one 2.88 MB 540 MB 8 MB optional Desktop March 1993 Windows 3.1 [40]
95 XP 486 8595-0G9 Intel 80486SX 20 MCA, 32-bit 0 8 8 one 1.44 MB 160 MB 4 MB optional Tower October 1990 [41]
95 XP 486 8595-0GF Intel 80486SX 20 MCA, 32-bit 0 8 8 one 1.44 MB 400 MB 4 MB optional Tower October 1990 [41]
95 XP 486 8595-0H9 Intel 80486SX 25 MCA, 32-bit 0 8 8 one 1.44 MB 160 MB 8 MB optional Tower October 1990 [41]
95 XP 486 8595-0HF Intel 80486SX 25 MCA, 32-bit 0 8 8 one 1.44 MB 400 MB 8 MB optional Tower October 1990 [41]
95 XP 486 8595-0J9 Intel 80486DX 25 MCA, 32-bit 0 8 8 one 1.44 MB 160 MB 8 MB optional Tower October 1990 [41]
95 XP 486 8595-0JD Intel 80486DX 25 MCA, 32-bit 0 8 8 one 1.44 MB 320 MB 8 MB optional Tower October 1990 [41]
95 XP 486 8595-0JF Intel 80486DX 25 MCA, 32-bit 0 8 8 one 1.44 MB 400 MB 8 MB optional Tower October 1990 [41]
95 XP 486 8595-0KD Intel 80486DX 33 MCA, 32-bit 256, optional 8 8 one 1.44 MB 320 MB 8 MB optional Tower October 1990 [41]
95 XP 486 8595-0KF Intel 80486DX 33 MCA, 32-bit 256, optional 8 8 one 1.44 MB 400 MB 8 MB optional Tower October 1990 [41]
95 XP 486 8595-0LF Intel 80486DX 50 MCA, 32-bit 0 8 8 one 1.44 MB 400 MB 8 MB optional Tower October 1990 [41]
95 XP 486 8595-0M6 Intel 80486DX 50 MCA, 32-bit 256 8 7 one 1.44 MB 104 MB 16 MB optional Tower October 1990 [42]
95 XP 486 8595-0M9 Intel 80486DX 50 MCA, 32-bit 256 8 7 one 1.44 MB 160 MB 16 MB optional Tower October 1990 [42]
95 XP 486 8595-0MA Intel 80486DX 50 MCA, 32-bit 256 8 7 one 1.44 MB 208 MB/212 MB 16 MB optional Tower October 1990 [42]
95 XP 486 8595-0MD Intel 80486DX 50 MCA, 32-bit 256 8 7 one 1.44 MB 320 MB 16 MB optional Tower October 1990 [42]
95 XP 486 8595-0MF Intel 80486DX 50 MCA, 32-bit 256 8 7 one 1.44 MB 400 MB 16 MB optional Tower October 1990 [42]
95 XP 486 8595-0MT Intel 80486DX 50 MCA, 32-bit 256 8 7 one 1.44 MB 1 GB 16 MB optional Tower October 1990 [42]
95 XP 486 8595-0MG Intel 80486DX 50 MCA, 32-bit 256 8 7 one 1.44 MB 540 MB 16 MB optional Tower October 1990 [42]
95 XP 486 9595-0L6 Intel 80486DX2 50 MCA, 32-bit 0 8 8 one 1.44 MB 104 MB 8 MB optional Tower October 1992 [43]
95 XP 486 9595-0L9 Intel 80486DX2 50 MCA, 32-bit 0 8 8 one 1.44 MB 160 MB 8 MB optional Tower October 1992 [43]
95 XP 486 9595-0LA Intel 80486DX2 50 MCA, 32-bit 0 8 8 one 1.44 MB 208 MB/212 MB 8 MB optional Tower October 1992 [43]
95 XP 486 9595-0LD Intel 80486DX2 50 MCA, 32-bit 0 8 8 one 1.44 MB 320 MB 8 MB optional Tower October 1992 [43]
95 XP 486 9595-0LF Intel 80486DX2 50 MCA, 32-bit 0 8 8 one 1.44 MB 400 MB 8 MB optional Tower October 1992 [43]
95 XP 486 9595-0LG Intel 80486DX2 50 MCA, 32-bit 0 8 8 one 1.44 MB 540 MB 8 MB optional Tower October 1992 [43]
95 XP 486 9595-0LT Intel 80486DX2 50 MCA, 32-bit 0 8 8 one 1.44 MB 1 GB 8 MB optional Tower October 1992 [43]
E 9533 Cyrix Cx486SLC2 50 ISA, 16-bit 0 4 (PC Card) 1 one 1.44 MB 350 MB/none 4 MB optional CRT/LCD Small form factor desktop July 1993

PS/2 Server[]

See also: Lenovo System x
IBM PS/2 Server models
Model IBM P/N Processor Clock speed
(MHz)		 Bus L2 cache
(KB)		 No. of
slots		 No. of
drive bays		 FDD HDD Stock
memory		 Monitor Form factor Date introduced Notes Ref(s).
Server 85 9585-0X6 Intel 80486SX 33 MCA, 32-bit 0 8 7 one 2.88 MB 104 MB 8 MB optional Tower September 1992 [44][45]
Server 85 9585-0X9 Intel 80486SX 33 MCA, 32-bit 0 8 7 one 2.88 MB 160 MB 8 MB optional Tower September 1992 [44][45]
Server 85 9585-0XA Intel 80486SX 33 MCA, 32-bit 0 8 7 one 2.88 MB 208 MB/212 MB 8 MB optional Tower September 1992 [44][45]
Server 85 9585-0XD Intel 80486SX 33 MCA, 32-bit 0 8 7 one 2.88 MB 320 MB 8 MB optional Tower September 1992 [44][45]
Server 85 9585-0XF Intel 80486SX 33 MCA, 32-bit 0 8 7 one 2.88 MB 400 MB 8 MB optional Tower September 1992 [44][45]
Server 85 9585-0XG Intel 80486SX 33 MCA, 32-bit 0 8 7 one 2.88 MB 540 MB 8 MB optional Tower September 1992 [44][45]
Server 85 9585-0XT Intel 80486SX 33 MCA, 32-bit 0 8 7 one 2.88 MB 1 GB 8 MB optional Tower September 1992 [44][45]
Server 85 9585-0KG Intel 80486DX 33 MCA, 32-bit 128 8 7 one 2.88 MB 540 MB 8 MB optional Tower November 1993 [46][47][48]
Server 85 9585-0KT Intel 80486DX 33 MCA, 32-bit 128 8 7 one 2.88 MB 1 GB 8 MB optional Tower November 1993 [46][47][48]
Server 85 9585-0NG Intel 80486DX2 66 MCA, 32-bit 256 8 7 one 2.88 MB 540 MB 8 MB optional Tower September 1993 [49][50][48]
Server 85 9585-0NT Intel 80486DX2 66 MCA, 32-bit 256 8 7 one 2.88 MB 1 GB 8 MB optional Tower September 1993 [49][50][48]
Server 95 8595-0K6 Intel 80486DX 33 MCA, 32-bit 256, optional 8 8 one 1.44 MB 104 MB 8 MB optional Tower [51]
Server 95 8595-0K9 Intel 80486DX 33 MCA, 32-bit 256, optional 8 8 one 1.44 MB 160 MB 8 MB optional Tower [51]
Server 95 8595-0KA Intel 80486DX 33 MCA, 32-bit 256, optional 8 8 one 1.44 MB 208 MB/212 MB 8 MB optional Tower [51]
Server 95 8595-0KG Intel 80486DX 33 MCA, 32-bit 256, optional 8 8 one 1.44 MB 540 MB 8 MB optional Tower [42]
Server 95 8595-0KT Intel 80486DX 33 MCA, 32-bit 256, optional 8 8 one 1.44 MB 1 GB 8 MB optional Tower [42]
Server 95 8595-0L6 Intel 80486DX 50 MCA, 32-bit 0 8 8 one 1.44 MB 104 MB 8 MB optional Tower October 1992 [52][47]
Server 95 8595-0L9 Intel 80486DX 50 MCA, 32-bit 0 8 8 one 1.44 MB 160 MB 8 MB optional Tower October 1992 [52]
Server 95 8595-0LA Intel 80486DX 50 MCA, 32-bit 0 8 8 one 1.44 MB 208 MB/212 MB 8 MB optional Tower October 1992 [52][47]
Server 95 8595-0LD Intel 80486DX 50 MCA, 32-bit 0 8 8 one 1.44 MB 320 MB 8 MB optional Tower October 1992 [52][47]
Server 95 8595-0LG Intel 80486DX 50 MCA, 32-bit 0 8 8 one 1.44 MB 540 MB 8 MB optional Tower October 1992 [52][47]
Server 95 8595-0LT Intel 80486DX 50 MCA, 32-bit 0 8 8 one 1.44 MB 1 GB 8 MB optional Tower October 1992 [52][47]
Server 95 9595-0M6 Intel 80486DX 50 MCA, 32-bit 256 8 8 one 1.44 MB 104 MB 16 MB optional Tower October 1992 [53][47]
Server 95 9595-0M9 Intel 80486DX 50 MCA, 32-bit 256 8 8 one 1.44 MB 160 MB 16 MB optional Tower October 1992 [53][47]
Server 95 9595-0MA Intel 80486DX 50 MCA, 32-bit 256 8 8 one 1.44 MB 208 MB/212 MB 16 MB optional Tower October 1992 [53][47]
Server 95 9595-0MD Intel 80486DX 50 MCA, 32-bit 256 8 8 one 1.44 MB 320 MB 16 MB optional Tower October 1992 [53][47]
Server 95 9595-0MF Intel 80486DX 50 MCA, 32-bit 256 8 8 one 1.44 MB 400 MB 16 MB optional Tower October 1992 [53][47]
Server 95 9595-0MG Intel 80486DX 50 MCA, 32-bit 256 8 8 one 1.44 MB 540 MB 16 MB optional Tower October 1992 [53][47]
Server 95 9595-0MT Intel 80486DX 50 MCA, 32-bit 256 8 8 one 1.44 MB 1 GB 16 MB optional Tower October 1992 [53][47]
Server 95 9595-1NG Intel 80486DX2 66 MCA, 32-bit 128 8 7 one 1.44 MB 540 MB 16 MB optional Tower October 1993 [54][6]
Server 95 9595-1NT Intel 80486DX2 66 MCA, 32-bit 128 8 7 one 1.44 MB 1 GB 16 MB optional Tower October 1993 [54][6]
Server 95 9595-1NV Intel 80486DX2 66 MCA, 32-bit 128 8 7 one 1.44 MB 2 GB 16 MB optional Tower 1994 [43][55]
Server 95 9595-0PT Intel Pentium 60 MCA, 32-bit 256 8 7 one 1.44 MB 540 MB 16 MB optional Tower September 1993 [56][6]
Server 95 9595-0PV Intel Pentium 60 MCA, 32-bit 256 8 7 one 1.44 MB 1 GB 16 MB optional Tower September 1993 [56][6]
Server 95 9595-0QG Intel Pentium 66 MCA, 32-bit 256 8 7 one 1.44 MB 540 MB 16 MB optional Tower September 1993 [57][50]
Server 95 9595-0QV Intel Pentium 66 MCA, 32-bit 256 8 7 one 1.44 MB 1 GB 16 MB optional Tower September 1993 [57][50]
Server 95 Array 9595-3NG Intel 80486DX2 66 MCA, 32-bit 128 8 9 one 1.44 MB 3×540 MB 8 MB optional Tower November 1993 [43][6]
Server 95 Array 9595-3NT Intel 80486DX2 66 MCA, 32-bit 128 8 9 one 1.44 MB 3×1 GB 8 MB optional Tower November 1993 [43][6]
Server 95 Array 9595-3NT Intel 80486DX2 66 MCA, 32-bit 256, optional 8 9 one 1.44 MB 3×1 GB 8 MB optional Tower November 1993 [43][6]
Server 95 Array 9595-3PG Intel Pentium 60 MCA, 32-bit 256 8 9 one 1.44 MB 3×540 MB 8 MB optional Tower November 1993 [43][6]
Server 95 Array 9595-3PT Intel Pentium 60 MCA, 32-bit 256 8 9 one 1.44 MB 3×1 GB 8 MB optional Tower November 1993 [43][6]
Server 95 Array 9595-3QG Intel Pentium 66 MCA, 32-bit 256 8 9 one 1.44 MB 3×540 MB 8 MB optional Tower November 1993 [43][6]
Server 95 Array 9595-3QT Intel Pentium 66 MCA, 32-bit 256 8 9 one 1.44 MB 3×1 GB 8 MB optional Tower November 1993 [43][6]
Server 295 8600-001 Intel 80486DX 33 MCA, 32-bit, dual 128 12 10 one 1.44 MB 400 MB/1 GB 32 MB optional Tower June 1992 Supports up to 28 GB of hot-swappable hard drive storage, RAID-5 compatible, dual processor optional, accepts only IBM 400 MB or 1 GB disks [58][59][60]
Server 295 8600-002 Intel 80486DX 50 MCA, 32-bit, dual 256 12 10 one 1.44 MB 400 MB/1 GB 32 MB optional Tower June 1992 Supports up to 28 GB of hot-swappable hard drive storage, RAID-5 compatible, dual processor optional, accepts only IBM 400 MB or 1 GB disks [58][59][60]
Server 195 8600-003 2×Intel 80486DX 50 MCA, 32-bit, dual 256 12 10 one 1.44 MB 400 MB/1 GB 32 MB optional Tower April 1993 Supports up to 28 GB of hard drive storage, RAID-5 compatible, dual processor standard, accepts only IBM 400 MB or 1 GB disks [61][60]

Portables[]

See also: IBM PS/2 portable computers
IBM PS/2 portable models
Model IBM P/N Processor Clock speed
(MHz)		 Bus L2 cache
(KB)		 No. of
slots		 No. of
drive bays		 FDD HDD Stock
memory		 Monitor Form factor Date introduced Notes Ref(s).
P70 8573-031 Intel 80386DX 16 MCA, 32-bit 2 0 0 one 1.44 MB 30 MB 2 MB Monochrome gas plasma Portable March 1990 [62]
P70 8573-061 Intel 80386DX 20 MCA, 32-bit 2 0 0 one 1.44 MB 60 MB 2 MB Monochrome gas plasma Portable May 1989 [62]
P70 8573-121 Intel 80386DX 20 MCA, 32-bit 2 0 0 one 1.44 MB 120 MB 2 MB Monochrome gas plasma Portable May 1989 [62]
P75 8573-161 Intel 80486DX 33 MCA, 32-bit 8 0 0 one 1.44 MB 160 MB 8 MB Monochrome gas plasma Portable November 1990 [62]
P75 8573-401 Intel 80486DX 33 MCA, 32-bit 8 0 0 one 1.44 MB 400 MB 8 MB Monochrome gas plasma Portable November 1990 [62]
L40SX 8543-A44 Intel 80386SX 20 ISA, 16-bit 0 0 (1 with AT bus expansion port) 0 one 1.44 60 MB 8 MB Monochrome LCD Laptop March 1991 [62][63]
N51SX 8551-033 Intel 80386SX 16 Proprietary 2 (PC Card) one 1.44 40 MB Monochrome LCD Notebook
N51SLC 8551-025 IBM 386SLC 16 Proprietary 2 (PC Card) one 1.44 80 MB Monochrome LCD Notebook
N33SX 8533-A33 Intel 80386SX 16 Proprietary 2 (PC Card) one 1.44 40 MB Monochrome LCD Notebook
N33SX 8533-A35 Intel 80386SX 16 Proprietary 2 (PC Card) one 1.44 80 MB Monochrome LCD Notebook
CL57SX 8554-045 IBM 386SLC 16 Proprietary 2 (PC Card) one 1.44 80 MB Color TFT Laptop

Related systems[]

IBM PS/2-related systems
Name IBM P/N Processor Clock speed
(MHz)		 Bus L2 cache
(KB)		 No. of
slots		 No. of
drive bays		 FDD HDD Stock
memory		 Monitor Form factor Date introduced Notes Ref(s).
Academic System 6152-022 Intel 80286
ROMP 032 		10 (286) MCA, 16-bit 0 8 4 one 1.44 20 MB 2 MB optional Tower February 1988 ROMP processor on daughter card, cannot work in parallel with 286 [64][65][66]
Academic System 6152-024 Intel 80286
ROMP 032 		10 (286) MCA, 16-bit 0 8 4 one 1.44 20 MB 4 MB optional Tower February 1988 ROMP processor on daughter card, cannot work in parallel with 286 [64][65][66]
Academic System 6152-044 Intel 80286
ROMP 032 		10 (286) MCA, 16-bit 0 8 4 one 1.44 44 MB 4 MB optional Tower February 1988 ROMP processor on daughter card, cannot work in parallel with 286 [64][65][66]
Academic System 6152-048 Intel 80286
ROMP 032 		10 (286) MCA, 16-bit 0 8 4 one 1.44 44 MB 8 MB optional Tower February 1988 ROMP processor on daughter card, cannot work in parallel with 286 [64][65][66]
Academic System 6152-074 Intel 80286
ROMP 032 		10 (286) MCA, 16-bit 0 8 4 one 1.44 70 MB 4 MB optional Tower February 1988 ROMP processor on daughter card, cannot work in parallel with 286 [64][65][66]
Academic System 6152-078 Intel 80286
ROMP 032 		10 (286) MCA, 16-bit 0 8 4 one 1.44 70 MB 8 MB optional Tower February 1988 ROMP processor on daughter card, cannot work in parallel with 286 [64][65][66]
EduQuest Thirty 9603 IBM 386SLC 25 ISA, 16-bit 0 4 2 one 1.44 MB 30 MB 1–4 MB 14-in. color All-in-one March 1993 Model 25 adapted specifically for educational institutions, optional sound card, late models without IBM logo on badge [67][68][69]
EduQuest Forty 9604 Intel 80486SX 25 ISA, 32-bit 0 4 2 one 1.44 MB 30 MB 4 MB 14-in. color All-in-one March 1993 Model 25 adapted specifically for educational institutions, optional sound card, late models without IBM logo on badge [67][68][69]
EduQuest Fifty 9605 Intel 80486SX 25 ISA, 32-bit 0 4 2 one 1.44 MB 30 MB 4 MB 14-in. color All-in-one March 1993 Model 25 adapted specifically for educational institutions, optional sound card, late models without IBM logo on badge [67][68][69]
EduQuest Thirty-cs 9606 Cyrix Cx486SLC2 25/50 ISA, 16-bit 0 4 2 one 1.44 MB ? ? 14-in. color All-in-one 1994 Model 25 adapted specifically for educational institutions, optional sound card [70][71][69]
EduQuest Fifty-cs 9608 Intel 80486DX2 33 ISA, 32-bit 0 4 2 one 1.44 MB ? ? 14-in. color All-in-one 1994 Model 25 adapted specifically for educational institutions, optional sound card [70][71][69]
EduQuest Thirty-five 9613 Cyrix Cx486SLC2 25/50 ISA, 16-bit 0 4 2 one 1.44 MB 133 MB/256 MB/342 MB 4 MB 14-in. color All-in-one September 1994 Model 25 adapted specifically for educational institutions, optional sound card, late models without IBM logo on badge [72][69]
EduQuest Fifty-five 9615 Intel 80486 33–100 ISA, 32-bit 0 4 2 one 1.44 MB 170 MB/360 MB/540 MB 4 MB 14-in. color All-in-one September 1994 Model 25 adapted specifically for educational institutions, optional sound card, six processor options offered [72][69]
EduQuest Forty-five 9614 Intel 80486DX2 50 or 66 ISA, 32-bit 0 4 2 one 1.44 MB ? 4 MB 14-in. color All-in-one September 1995 Model 25 adapted specifically for educational institutions, optional sound card [73][69]
GE Fanuc Workmaster II 7186 Intel 80386DX 16 MCA, 32-bit 2 0 0 one 1.44 MB 30 MB 2 MB Monochrome gas plasma Portable March 1990 General Electric Fanuc-branded ruggedized industrial PS/2 P70 in black plastic case [74]
Industrial Computer 7552 Intel 80386SX 20 ISA, 16-bit
MCA, 16-bit (undocumented) 		0 8 (modules, 7 fillable) 3 (as modules) one 1.44 MB (as a module) 20 MB (as a module, 40 MB as two identical modules) 4 MB optional Benchtop or rack mount October 1986 Also known as "Gearbox", rack-mountable ruggedized modular industrial computer, hybrid MCA and ISA with compromised ISA signal lines—notable for introducing the (16-bit) Micro Channel architecture half a year before the announcement of the PS/2 line in April 1987 [75][76][77][78]
Industrial System 7541 Intel 80286 10 MCA, 16-bit 0 3 3 one 1.44 MB 30 MB 1 MB optional Benchtop March 1989 Desktop ruggedized industrial PS/2 [79][80]
Industrial System 7542 Intel 80286 10 MCA, 16-bit 0 4 3 one 1.44 MB 30 MB 1 MB optional Rack mount March 1989 Rack-mounted ruggedized industrial PS/2 [79][80]
Industrial System 7561 Intel 80386 20 MCA, 32-bit 0 3 4 one 1.44 MB 60 MB 2 MB optional Benchtop March 1989 Desktop ruggedized industrial PS/2 [79][80]
Industrial System 7562 Intel 80386 20 MCA, 32-bit 0 4 4 one 1.44 MB 60 MB 2 MB optional Rack mount March 1989 Rack-mounted ruggedized industrial PS/2 [79][80]
Industrial Computer 7546 Intel 80386SX 20 MCA, 16-bit 0 5 4 one 2.88 MB 320/400 MB 4 MB optional Benchtop or rack mount September 1991 Rack-mountable desktop ruggedized industrial PS/2 [81]
Industrial Computer 7568-040 Intel 80386 25 MCA, 32-bit
ISA, 32-bit (with adapter interposer) 		32 8 (modules, 7 fillable) 3 (as modules) one 1.44 MB (as a module) none 4 MB optional Benchtop or rack mount October 1989 Also known as "Gearbox 800", rack-mountable ruggedized modular industrial PS/2 [82][83]
Industrial Computer 7568-150 Intel 80386 25 MCA, 32-bit
ISA, 32-bit (with adapter interposer) 		32 8 (modules, 6 fillable) 3 (as modules) one 1.44 MB (as a module) 120 MB (as a module, 240 MB as two identical modules) 8 MB optional Benchtop or rack mount October 1989 Also known as "Gearbox 800", rack-mountable ruggedized modular industrial PS/2 [82][83]
Industrial Computer 7568-C40 Intel 80486 25 MCA, 32-bit
ISA, 32-bit (with adapter interposer) 		32 8 (modules, 7 fillable) 3 (as modules) one 1.44 MB (as a module) optional 8 MB optional Benchtop or rack mount September 1991 Also known as "Gearbox 800", rack-mountable ruggedized modular industrial PS/2 [84][83]
Industrial Computer 7568-D40 Intel 80486DX2 50 MCA, 32-bit
ISA, 32-bit (with adapter interposer) 		32 8 (modules, 7 fillable) 3 (as modules) one 1.44 MB (as a module) optional 8 MB optional Benchtop or rack mount September 1991 Also known as "Gearbox 800", rack-mountable ruggedized modular industrial PS/2 [85][83]
Personal Typing System 6901-001 Intel 8086 8 (0 w) ISA, 8-bit 0 0 2 one 720 KB (two optional) none (20 MB optional with single-floppy model) 640 KB 12-in. monochrome Desktop July 1987 Slightly modified application-specific Model 30 with word processing software, networking expansion card, and Wheelwriter [86]
Personal Typing System 6901-002 Intel 8086 8 (0 w) ISA, 8-bit 0 0 2 one 720 KB (two optional) none (20 MB optional with single-floppy model) 640 KB 12-in. monochrome Desktop July 1987 Slightly modified application-specific Model 30 with word processing software, networking expansion card, and Quietwriter [86]
Personal Typing System 6901-003 Intel 8086 8 (0 w) ISA, 8-bit 0 0 2 one 720 KB (two optional) none (20 MB optional with single-floppy model) 640 KB 12-in. color Desktop July 1987 Slightly modified application-specific Model 30 with word processing software, networking expansion card, and Wheelwriter [86]
Personal Typing System 6901-004 Intel 8086 8 (0 w) ISA, 8-bit 0 0 2 one 720 KB (two optional) none (20 MB optional with single-floppy model) 640 KB 12-in. color Desktop July 1987 Slightly modified application-specific Model 30 with word processing software, networking expansion card, and Quietwriter [86]
Personal Typing System 6901-005 Intel 8086 8 (0 w) ISA, 8-bit 0 0 2 one 720 KB (two optional) none (20 MB optional with single-floppy model) 640 KB 12-in. monochrome Desktop July 1987 Slightly modified application-specific Model 30 with word processing software and networking expansion card [86]
Personal Typing System 6901-006 Intel 8086 8 (0 w) ISA, 8-bit 0 0 2 one 720 KB (two optional) none (20 MB optional with single-floppy model) 640 KB 12-in. color Desktop July 1987 Slightly modified application-specific Model 30 with word processing software and networking expansion card [86]
Personal Typing System/2 6907 Intel 8086 8 (0 w) ISA, 8-bit 0 2 2 one 1.44 MB (two optional) none (20 MB optional with single-floppy model) 640 KB optional Desktop July 1989 Slightly modified application-specific Model 30 with word processing software and networking expansion card, Wheelwriter optional [87][88]
Personal Typing System/2 286 6908 Intel 80286 10 (1 w) ISA, 16-bit 0 2 2 one 1.44 MB (two optional) none (20/30 MB optional with single-floppy model) 1 MB optional Desktop July 1989 Slightly modified application-specific Model 30 286 with word processing software and networking expansion card, Wheelwriter optional [87][88]

References[]

  1. ^ a b c d e f g h i "IBM Personal System/2 and IBM Personal Computer Product Reference, Version 4.0" (PDF). International Business Machines. September 1988. p. 44. Retrieved September 29, 2021 – via Bitsavers.
  2. ^ "Short Looks: IBM PS/2 Model 25". InfoWorld. CW Communications. 9 (33). August 17, 1987 – via Google Books.
  3. ^ Gibson, Stanley (9 November 1987). "IBM banks on options for PS/2s". Computerworld. CW Communications. XXI (45): 24 – via Google Books.
  4. ^ Mardesich, Jodi (15 October 1990). "IBM Joins Diskless Workstation Market with 386SX Machine". InfoWorld. CW Communications. 12 (42): 39 – via Google Books.
  5. ^ a b c d e f g "IBM PS/2 (Model 77) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  6. ^ a b c d e f g h i j k l Burns, Christine (20 September 1993). "IBM Offers 7 New Servers". Network World. IDG Publications. 10 (38): 24, 27 – via Google Books.
  7. ^ a b "IBM PS/2 (Model 25) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  8. ^ a b c d "IBM Personal System/2 and IBM Personal Computer Product Reference, Version 4.0" (PDF). International Business Machines. September 1988. p. 43. Retrieved September 29, 2021 – via Bitsavers.
  9. ^ a b c "IBM PS/2 (Model 25-286) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  10. ^ a b c Lunan, Charles (January 1992). "IBM Goes After School Computer Market". Sun Sentinel. Tribune Publishing Company. p. D3 – via ProQuest. On Tuesday, IBM released the first product developed by [Jose] Garcia's team: the Model 25 SX. The new model uses the same Intel 386SX microprocessor ... to run the graphics-rich software popular with teachers. It will be able to display up to 256 different colors and come standard with connections for overhead projection systems and computer networks. The new models will become available in April at $1,249 to $1,899, IBM said.
  11. ^ a b c Walsh, William (June 15, 2005). "IBM PS/2 Model 25SX". Walsh Computer Technology. Retrieved September 29, 2021.
  12. ^ a b "IBM PS/2 (Model 30) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  13. ^ a b "IBM PS/2 (Model 30-286) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  14. ^ "IBM Personal System/2 Model 30 286 (8530-E31)". International Business Machines. September 26, 1989. Retrieved September 29, 2021.
  15. ^ "IBM Personal System/2 Model 30 286 (8530-E41)". International Business Machines. April 23, 1991. Retrieved September 29, 2021.
  16. ^ "IBM PS/2 (Model 50) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  17. ^ a b "IBM PS/2 (Model 60) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  18. ^ a b "IBM PS/2 (Model 76) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  19. ^ Eager, Bob (May 5, 2002). "PS/2 FAQ, Section 1". Tavi Systems. Retrieved September 28, 2021.
  20. ^ a b c d "IBM PS/2 (Model 35 SX/35 LS) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  21. ^ a b "IBM PS/2 (Model 35 SLC) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  22. ^ a b "IBM PS/2 (Model 40 SLC) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  23. ^ a b c "IBM PS/2 (Model 40 SX) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  24. ^ a b "IBM PS/2 (Model 50 Z) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  25. ^ a b c d "IBM PS/2 53 486SLC2 (9553-0B7 and 0BB), IBM PS/2 53LS 486SLC2 (9553-1BX and 2BX) Announcement Letter". International Business Machines. Archived from the original on September 11, 2014. Retrieved September 28, 2021 – via Kevin Bowling.
  26. ^ a b c d "IBM PS/2 (Model 55 SX/55 LS) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  27. ^ a b c d "IBM PS/2 (Model 56 SX/56 LS) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  28. ^ a b c d "IBM PS/2 (Model 56 SLC/56 SLC LS) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  29. ^ a b "IBM PS/2 (Model 56 SLC2) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  30. ^ a b c "IBM PS/2 (Model 57 SLC) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  31. ^ a b "IBM PS/2 (Model 57 SLC2) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  32. ^ a b "IBM PS/2 (Model 57 SX) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  33. ^ a b "IBM PS/2 56 and 57 486SLC2, PS/2 Ultimedia M57 and Ultimedia DV M57 486SLC2 Announcement Letter". International Business Machines. 21 September 1992. Archived from the original on September 28, 2021. Retrieved September 28, 2021.
  34. ^ a b "IBM PS/2 (Model 65 SX) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  35. ^ a b c d e "IBM PS/2 (Model 70-Axx) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  36. ^ a b "IBM PS/2 (Model 70 486) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  37. ^ a b c d e f g "IBM PS/2 (Model 80) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  38. ^ a b c "IBM Personal System/2 Model 80 (8580-081, 161 and A16) Announcement Letter". International Business Machines. 30 October 1990. Archived from the original on September 29, 2021. Retrieved September 29, 2021.
  39. ^ a b c d e f g "IBM PS/2 (Model 90 XP 486) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  40. ^ a b c d e f "IBM PS/2 (Enhanced Model 90 XP 486) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  41. ^ a b c d e f g h i j "IBM PS/2 (Model 95 XP 486) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  42. ^ a b c d e f g h i "IBM PS/2 (Model 95 XP 486) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  43. ^ a b c d e f g h i j k l m n o "IBM PS/2 (Enhanced Model 95 XP 486)/PC Server 95 – Technical Specifications". International Business Machines. Archived from the original on September 12, 2014. Retrieved September 28, 2021 – via Kevin Bowling.
  44. ^ a b c d e f g "PS/2 Server 85 – Technical Specifications (9585-0X6, 0X9, 0XA, 0XD, 0XF, 0XG, 0XT)". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  45. ^ a b c d e f g Scannell, Ed (September 28, 1992). "Big Blue Relaunches PS/2s and Slashes Prices". InfoWorld. CW Communications. p. 12 – via Google Books.
  46. ^ a b "PS/2 Server 85 – Technical Specifications (9585-0KG, 0KT)". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  47. ^ a b c d e f g h i j k l m n Gillooly, Caryn (October 5, 1992). "IBM Fills Out Server Plan with Two New PS/2 Models". Network World. IDG Publications. 9 (40): 11 – via Google Books.
  48. ^ a b c d "IBM PS/2 (Server 85)/PC Server 85 – Technical Specifications". International Business Machines. January 13, 1999. Retrieved September 28, 2021 – via Kevin Bowling.
  49. ^ a b "PS/2 Server 85 – Technical Specifications (9585-0NG, 0NT)". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  50. ^ a b c d Corcoran, Cate (September 20, 1993). "Faster IBM Servers Due This Month". InfoWorld. CW Communications. p. 25 – via Google Books.
  51. ^ a b c "PS/2 Server 95 – Technical Specifications (8595-0K6, 0K9, 0KA, 0KD, 0KF, 0KG, 0KT)". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  52. ^ a b c d e f "PS/2 Server 95 – Technical Specifications (8595-0LF) – Technical Specifications". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  53. ^ a b c d e f g "PS/2 Server 95 – Technical Specifications (9595-0M6, 0M9, 0MA, 0MD, 0MF, 0MG, 0MT)". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  54. ^ a b "PS/2 Server 95 – Technical Specifications (9595-1NG, 1NT)". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  55. ^ International Business Machines (April 26, 1994). "IBM Net Select advertisement". PC Magazine. Ziff-Davis. 13 (8): 199.
  56. ^ a b "PS/2 Server 95 – Technical Specifications (9595-0PG, 0PT)". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  57. ^ a b "PS/2 Server 95 – Technical Specifications (9595-0QG, 0QT)". International Business Machines. 2000. Retrieved September 28, 2021 – via Ardent Tool.
  58. ^ a b "IBM PS/2 Server 195 (8600-003 Announcement Letter". Industrial Business Machines. April 6, 1993. Retrieved September 29, 2021 – via Ardent Tool.
  59. ^ a b Staff writers (December 21, 1992). "Product Evaluation: PS/2 Server 295". Computerworld. CW Communications. 26 (51): 31–32 – via Google Books.
  60. ^ a b c Slavotínek, Tomáš. "8600 IDC Boards: Intelligent Disk Controller". Retrieved October 3, 2021.
  61. ^ "IBM PS/2 Server 195 (8600-003 Announcement Letter". Industrial Business Machines. April 6, 1993. Retrieved September 29, 2021 – via Ardent Tool.
  62. ^ a b c d e f IBM Personal System/2 Facts and Features (PDF). Vol. G360-2832-08. International Business Machines. June 1991.
  63. ^ Brutman, Michael B. (August 16, 2020). "IBM Personal System/2 Laptop 40 SX (PS/2 L40SX) Notes". Brutman.com. Retrieved September 29, 2021.
  64. ^ a b c d e f Fisher, Sharon (February 8, 1988). "Workstation Merges PS/2, RT Technology". InfoWorld. CW Communications. 10 (6): 1, 81 – via Google Books.
  65. ^ a b c d e f IBM 6152 Academic System (PDF). Vol. G590-0200-00. International Business Machines. 1988.
  66. ^ a b c d e f Walsh, William (2007). "IBM 6152 Academic System". Walsh Computer Technology. Retrieved September 29, 2021.
  67. ^ a b c Greaves, Tom (March 1993). "EduQuest aims high: building the ideal computer for schools". Electronic Learning. Scholastic Inc. 12 (6): 26 – via Gale OneFile.
  68. ^ a b c Staff writer (March 1993). "EduQuest announces new line of computers for K-12". Electronic Learning. Scholastic Inc. 12 (6): 25 – via Gale OneFile.
  69. ^ a b c d e f g h "9655001 – IBM EduQuest 14-inch Monitor". DirectMacro. Archived from the original on September 30, 2021. Retrieved September 30, 2021.
  70. ^ a b "Title unknown". THE Journal. Technological Horizons in Education. 1994 – via Google Books.
  71. ^ a b "IBM EduQuest". Ardent Tool. Retrieved September 29, 2021.
  72. ^ a b Shields, Jean (September 1994). "Back-to-school computers". Technology & Learning. Future US. 15 (1): 66 – via Gale OneFile.
  73. ^ Staff writer (September 1995). "What's new on the hardware front". Technology & Learning. Future US. 16 (1): 64 – via Gale OneFile.
  74. ^ Reeve, Alan (January 1991). "Integrating PLCs with networks". Control and Instrumentation. Centaur Communications. 23 (1): 35 – via Gale OneFile. GE Fanuc has also introduced the Workmaster II, an 80386-based ruggedised PC designed to be used as a portable PLC programmer. Operating at 16 MHz, the unit gives short start-up times, rapid hard disk and memory access and quick system updates.
  75. ^ "IBM 7552 Industrial Computer Model 540 Announcement Letter". Industrial Business Machines. November 3, 1987. Retrieved September 29, 2021 – via Ardent Tool.
  76. ^ Kono, M. E. (December 1992). Surface Computer System Architecture for the Advanced Unmanned Search System (AUSS) (PDF). Naval Command, Control and Ocean Surveillance Center. p. 3 – via Ardent Tool.
  77. ^ Wallace, Bob (20 October 1986). "IBM uncloaks industrial micro as network gateway". Network World. IDG Publications. 3 (33) – via Google Books.
  78. ^ Cleaveland, Peter (April 21, 1987). "Low-cost, flexible microcomputers get jobs in factories". Instrumentation & Control Systems. Reed Business Information Enterprise. 61 (5): 31 – via Gale OneFile. IBM doesn't advertise the PS/2 as a factory-floor machine, yet the PS/2's backplane bus structure, Micro Channel, appeared in a factory-floor computer before the PS/2 itself came on the market. People who examined the IBM 7552 Gearbox, ostensibly a factory-hardened version of the AT, notice something odd about the unit's bus: It had more bus lines than could be accounted for by the AT bus. The extra lines turned out to be the 16-bit Micro Channel. Nobody at IBM said anything about it at the time, because PS/2 hadn't yet been introduced.
  79. ^ a b c d LaPlante, Alice (March 27, 1989). "IBM Announces Two Industrial MCA Computers". InfoWorld. CW Communications. 11 (13) – via Google Books.
  80. ^ a b c d "IBM 7561 and 7562 Industrial Computers Announcement Letter". International Business Machines. March 21, 1989. Retrieved September 29, 2021.
  81. ^ "IBM 7546 Industrial Computers Announcement Letter". International Business Machines. September 4, 1991. Retrieved September 29, 2021.
  82. ^ a b "Gearbox Model 80 Announcement Letter". Industrial Business Machines. October 24, 1989. Retrieved September 29, 2021 – via Ardent Tool.
  83. ^ a b c d Slavotínek, Tomáš. "7568 Common Devices". Ardent Tool. Retrieved September 29, 2021.
  84. ^ "Gearbox Model 80 (7568-C40) Announcement Letter". Industrial Business Machines. September 4, 1991. Retrieved September 29, 2021 – via Ardent Tool.
  85. ^ "Gearbox Model 80 (7568-D40) Announcement Letter". Industrial Business Machines. September 15, 1992. Retrieved September 29, 2021 – via Ardent Tool.
  86. ^ a b c d e f "IBM Personal System/2 and IBM Personal Computer Product Reference, Version 4.0" (PDF). International Business Machines. September 1988. p. 46. Retrieved September 29, 2021 – via Bitsavers.
  87. ^ a b LaPlante, Alice (July 24, 1989). "IBM Reenters AT Market with Typing System Line". InfoWorld. CW Communications. 11 (30): 9 – via Google Books.
  88. ^ a b "The IBM Personal Printer Series II 2390 and 2391 Impact Printers Announcement Letter". International Business Machines. August 20, 1991. Retrieved September 29, 2021.
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