IBM PS/2 Server
| Company type | Product line |
|---|---|
| Industry | Computer hardware |
| Founded | 1987 |
| Founder | International Business Machines Corporation (IBM) |
| Headquarters | Armonk , United States |
Area served | Worldwide |
| Products | Personal computers, servers, laptops, workstations |
| Parent | IBM |
The Personal System/2 (PS/2), introduced by International Business Machines Corporation (IBM) in 1987, represented IBM's second generation of personal computers following the original IBM PC lineup, which was discontinued upon the PS/2's debut. A majority of PS/2 machines incorporated IBM's proprietary Micro Channel architecture (MCA) bus, designed to reestablish IBM's dominance in the PC industry. However, certain entry-level variants maintained the use of the open-standard Industry Standard Architecture (ISA) bus, which was prevalent in earlier IBM PC models. The PS/2 family encompassed a diverse range of configurations, including desktop units, tower systems, all-in-one models, as well as portable and laptop computers.
Notes
- Legend
- Clarifications
- Models with IBM part numbers intended for markets outside North America are not listed.
- Unless otherwise noted, integrated or optional displays are cathode-ray tube (CRT) monitors.
- The Space Saving Keyboard is a compact 87-key version of the Model M keyboard that excludes the numeric keypad.
- The Model 25 Collegiate was designed for university students, equipped with dual 720 KB floppy drives, up to 640 KB of RAM, bundled with the official PS/2 Mouse, Windows 2.0, and blank floppy disks.
- Financial workstation variants featured a specialized 50-key function keypad tailored for banking software.
- LS ("LAN Station") models were diskless workstations lacking both floppy and hard drives, connecting through either Ethernet or Token Ring network adapters.
- Ultimedia editions included built-in microphones, SCSI CD-ROM drives, M-Audio sound cards with volume controls, and front-panel headphone and microphone jacks.
- Array configurations served as PS/2 Servers with support for RAID storage systems.
Primary Series
... [Additional entries omitted for brevity] ... ... [Additional entries omitted for brevity] ... ... [Additional entries omitted for brevity] ...| Model | IBM part number | CPU | Clock Speed (MHz) |
Bus Type | Expansion Slots | Drive Bays | Floppy Drive | Hard Drive | Standard RAM | Max RAM | Graphics Adapter | Monitor | Chassis Type | Release Date | Remarks | References |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25 | 8525-001 | Intel 8086 | 8 (0 wait states) | ISA, 8-bit | 2 | 2 | one 720 KB | none | 512 KB | 640 KB | MCGA | 12-inch monochrome | All-in-one | August 1987 | Space Saving Keyboard included | |
| 25 | 8525-004 | Intel 8086 | 8 (0 wait states) | ISA, 8-bit | 2 | 2 | one 720 KB | none | 512 KB | 640 KB | MCGA | 12-inch color | All-in-one | August 1987 | Space Saving Keyboard included | |
| 25 SX | 8525-K00 | Intel 386SX | 20 | ISA, 16-bit | 3 | 2 | one 1.44 MB | none | 1 MB | 16 MB | VGA | 12-inch color | All-in-one | April 1992 | ||
| Notable high-performance desktop and tower models featuring Micro Channel architecture combined with Intel i386/i486 processors, offering enhanced storage solutions and expanded memory capacities. | ||||||||||||||||
| Subsequent releases include the Ultimedia series equipped with multimedia functionalities, supporting processors up to Intel 486SLC3, advanced graphics adapters such as XGA-2, and integrated network connectivity options like Ethernet and Token Ring. | ||||||||||||||||
PS/2 Server
... (similar entries omitted for brevity) ... ... (similar entries omitted for brevity) ...| Model | IBM P/N | CPU | Clock rate (MHz) |
Bus type | Number of slots |
Drive bay count | FDD | HDD | Default RAM |
Maximum RAM |
Graphics adapter | Display | Chassis type | Launch date | Remarks | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Server 85 | 9585-0X6 | Intel 486SX | 33 | MCA, 32-bit | 8 | 7 | one 2.88 MB | 104 MB (SCSI) | 8 MB | 64 MB | SVGA | optional | Tower | Template:Date table sorting | ||
| Server 85 | 9585-0X9 | Intel 486SX | 33 | MCA, 32-bit | 8 | 7 | one 2.88 MB | 160 MB (SCSI) | 8 MB | 64 MB | SVGA | optional | Tower | Template:Date table sorting | ||
| Server 85 | 9585-0XA | Intel 486SX | 33 | MCA, 32-bit | 8 | 7 | one 2.88 MB | 208 MB/212 MB (SCSI) | 8 MB | 64 MB | SVGA | optional | Tower | Template:Date table sorting | ||
| Server 95 Array | 9595-3NT | Intel 486DX2 | 66 | MCA, 32-bit | 8 | 9 | one 1.44 MB | three ×1 GB (SCSI) | 8 MB | 256 MB | SVGA | optional | Tower | |||
| Premium Server 95 | 9595-Z0x | Intel 486DX2 Intel Pentium |
66 | MCA, 32-bit | 8 | 7 | one 2.88 MB | 1 GB (SCSI) | 8 MB | 256 MB | SVGA | optional | Tower | Template:Date table sorting | Comes preloaded with IBM LAN Server or Novell NetWare | |
| Server 295 | 8600-001 /8600-002 | Intel 486 (33 MHz /50 MHz), dual processor optional | Dual, MCA,32-bit,12 slots,10 drive bays | Supports up to28 GB hot-swappable storage, RAID-5 compatible; accepts only IBM SCSI disks (400 MB or1 GB) | Tower | Released mid-1992 to early-1993 | ||||||||||
| Server195 | 8600-003 | Dual Intel486 at50 MHz standard | Dual MCA,32-bit,12 slots,10 drive bays | Supports up to28 GB storage, RAID-5 compatible; compatible exclusively with IBM SCSI disks (400MB or1GB) | Tower | Released April1993 |
Portables
| Model | IBM P/N | CPU | Clock frequency (MHz) |
Bus type | Expansion slots count |
Drive bays count | FDD | HDD | Base Template:Abbr RAM |
Maximum Template:Abbr RAM |
Video controller | Screen type | Form factor | Release date | Remarks | Template:Abbr Ref(s). |
|---|
|- P70 8573-031 Intel386 16 style="background:#CCF" | MCA,32-bit 2 (one16-bit, one32-bit) 0 one1.44MB 30MB (ESDI) 2MB 8MB VGA Monochrome gas plasma Portable Template:Date table sorting Includes slot for optional i387 math co-processor | |- P70 8573-061 Intel386 20 style="background:#CCF" | MCA,32-bit 2 (one16-bit, one32-bit) 0 one1.44MB 60MB (ESDI) 2MB 8MB VGA Monochrome gas plasma Portable Template:Date table sorting Includes slot for optional i387 math co-processor | |- P70 8573-121 Intel386 20 style="background:#CCF" | MCA,32-bit 2 (one16-bit, one32-bit) 0 one1.44MB 120MB (ESDI) 2MB 8MB VGA Monochrome gas plasma Portable Template:Date table sorting Includes slot for optional i387 math co-processor | |- P75 8573-161 Intel486 33 style="background:#CCF" | MCA,32-bit 4 (two16-bit, two32-bit) 0 one1.44MB 160MB (SCSI) 4MB 16MB VGA Monochrome gas plasma Portable Template:Date table sorting Features integrated SCSI controller | |- P75 8573-401 Intel486 33 style="background:#CCF" | MCA,32-bit 4 (two16-bit, two32-bit) 0 one1.44MB 400MB (SCSI) 4MB 16MB VGA Monochrome gas plasma Portable Template:Date table sorting Includes built-in SCSI controller | |- L40 SX 8543-A44 Intel386SX 20 style="background:#CFC" | ISA,16-bit 0 (1 with AT bus expansion port) 0 one1.44MB 60MB (IDE) 2MB 18MB VGA Monochrome LCD Laptop Template:Date table sorting | |- N51SX 8551-033 Intel386SX 16 style="background:#FFC" | Proprietary 2 (PC Card slots) unknown one1.44MB 40MB (IDE) 2MB 10MB VGA Monochrome LCD Notebook unknown | |- N51SLC 8551-025 IBM386SLC 16 style="background:#FFC" | Proprietary 2 (PC Card slots) unknown one1.44MB 80MB (IDE) 2MB 10MB VGA Monochrome LCD Notebook unknown | |- N33SX 8533-A33 Intel386SX 16 style="background:#FFC" | Proprietary 2 (PC Card slots) unknown one1.44MB 40MB (IDE) unknown unknown unknown Monochrome LCD Notebook unknown | |- N33SX 8533-A35 Intel386SX 16 style="background:#FFC" | Proprietary 2 (PC Card slots) unknown one1.44MB 80MB (IDE) unknown unknown unknown Monochrome LCD Notebook unknown | |- CL57 SX 8554-045 IBM386SLC 16 style="background:#FFC" | Proprietary 2 (PC Card slots) unknown one1.44MB 80MB (IDE) 2MB 16MB VGA Color TFT Laptop unknown | }
Related Systems
... (additional Academic System variations follow) ... ... (summary of other systems below) ... Clinical Workstation EduQuest Thirty to Fifty-five series (9603–9615) Executive Workstation GE Fanuc Workmaster II Industrial Computers (IBM Gearbox series), including models: 7541,7542,7552,7561,7562,7546,7568 series (040,150,C40,D40) Personal Typing System series (Models6901-001 through6907 and6908)| Model | IBM P/N | CPU | Clock Speed (MHz) |
Bus Type | Number of slots |
Number of Drive Bays |
FDD | HDD | Standard RAM |
Maximum RAM |
Graphics Adapter | Display | Chassis Type | Launch Date | Remarks |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Academic System | 6152-022 | Intel 80286 ROMP 032 |
10 (286) | MCA, 16-bit | 8 | 4 | single 1.44 MB | 20 MB (ST-506) | 2 MB | 8 MB | VGA | optional | Tower | Template:Date table sorting | Features ROMP processor on daughterboard; unable to operate concurrently with 286 |
| Academic System | 6152-024 | Intel 80286 ROMP 032 |
10 (286) | MCA, 16-bit | 8 | 4 | single 1.44 MB | 20 MB (ST-506) | 4 MB | 8 MB | VGA | optional | Tower | Template:Date table sorting | Equipped with ROMP processor on daughterboard; does not support simultaneous operation with 286 |
| Academic System | 6152-044 | Intel 80286 ROMP 032 |
10 (286) | MCA, 16-bit | 8 | 4 | single 1.44 MB | 44 MB (ST-506) | 4 MB | 8 MB | VGA | optional | Tower | Template:Date table sorting | Incorporates ROMP processor on daughterboard; cannot run parallel with the 286 CPU |
| Academic System | 6152-048 | Intel 80286 ROMP 032 |
10 (286) | MCA, 16-bit | 8 | 4 | single 1.44 MB | 44 MB (ST-506) | 8 MB | 8 MB | VGA | optional | Tower | Template:Date table sorting | Includes ROMP processor on daughterboard; simultaneous use with the 286 is not supported |
| Model | IBM P/N | CPU | Clock Speed (MHz) | Bus Type | Slots Count | Drive Bays Count | FDD Type | HDD Capacity | Default RAM | Max RAM Capacity | Video Adapter Type | Display Monitor | Case Style | Release Date | Additional Information |
| 7690 | Intel 8086 | 8 (zero wait states) | ISA, 8-bit | 4 | 0 | single 1.44 MB | none | 640 KB | 8 MB | Multi-Color Graphics Array (MCGA) | Monochrome LCD | Mobile workstation | Template:Date table sorting | Designed as a mobile workstation for healthcare environments; intended to complement IBM 7496 Executive Workstation | |
| Various Intel 386SLC to Intel 486DX2 CPUs, clock speeds ranging from 25 to up to100 MHz | ISA, 16-bit bus | 4 slots, generally two drive bays | One 1.44 MB FDD, IDE hard drives from approximately30 to over 500 MB depending on model | RAM capacity between 1 and64 MB; SVGA video adapters standard; mostly color monitors, typically14-inch integrated form factor | Released between March 1993 and September 1994; tailored for educational institutions with optional sound cards and later versions without IBM branding on badges | ||||||||||
| 7496 | Intel8086 | 8 (zero wait states) | ISA, 8-bit | 3 slots | no drive bays | single 720 KB FDD | none | 640 KB RAM | 640 KB maximum RAM | MCGA | Monochrome | All-in-one desktop | Template:Date table sorting | Healthcare-focused all-in-one system based on Model 30 motherboard; designed to be used alongside IBM 7690 Clinical Workstation | |
| 7186 | Intel386,16 MHz | MCA,32-bit | no expansion slots, no drive bays | single 1.44 MB FDD | 30 MB ESDI HDD | 2 MB standard RAM, expandable up to8 MB | VGA graphics adapter | Monochrome gas plasma display | Portable design | Template:Date table sorting 1990 03 | Industrial-grade portable PC by General Electric Fanuc, specialized for PLC programming tasks |