List of IBM PS/2 models
| Industry | Computer hardware |
|---|---|
| Founded | June 16, 1911 in Endicott, New York, United States |
| Products | Personal System/2 (PS/2) series of personal computers |
| Website | www |
The Personal System/2 (PS/2) was a series of personal computers created by the International Business Machines Corporation (IBM). Introduced in 1987, this lineup represented IBM's second wave of PC models, following the original IBM PC family. The majority of PS/2 units incorporated IBM's proprietary Micro Channel architecture (MCA) bus, a closed design intended to reestablish IBM's dominance in the market. Nonetheless, certain entry-level versions continued to use the widely adopted Industry Standard Architecture (ISA) bus. The PS/2 range encompassed various form factors including desktop units, tower cases, integrated all-in-one systems, portable computers, laptops, and notebooks.
Notes
- Legend
- Additional information
- Submodels identified with IBM part numbers (P/N) applicable outside North America have been omitted.
- Monitors integrated or optionally included are cathode ray tubes (CRTs) unless otherwise noted.
- The Space Saving Keyboard is an 87-key variant of the Model M that excludes the numeric keypad.
- The Model 25 Collegiate was designed for college users, featuring dual 720 KB floppy drives, up to 640 KB of RAM, and bundled with the official PS/2 Mouse and Windows 2.0 software.
- Financial workstation variants were equipped with a 50-key function keypad tailored for banking tasks.
- LS (LAN Station) configurations were diskless workstations lacking both floppy and hard drives, connecting through Ethernet or Token Ring networks.
- Ultimedia editions offered enhanced multimedia functionality such as built-in microphones, SCSI CD-ROM drives, sound cards, and audio jacks on the front panel.
- Array models served as PS/2 Servers capable of supporting RAID setups.
Primary series
... (Additional model entries follow similar formatting with minor variations) ...- Examples of later releases:
- Higher-end desktop and tower configurations:
| Model | IBM P/N | CPU | Clock speed (MHz) |
Bus type | Expansion slots |
Drive bays |
FDD | HDD | Default RAM |
Maximum RAM |
Graphics adapter | Display | Form factor | Release date | Remarks | Ref(s). |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25 | 8525-001 | Intel 8086 | 8 (0 w) | ISA, 8-bit | 2 | 2 | one 720 KB | none | 512 KB | 640 KB | MCGA | 12-inch monochrome | All-in-one | Template:Date table sorting | Space Saving Keyboard included | |
| 25 | 8525-004 | Intel 8086 | 8 (0 w) | ISA, 8-bit | 2 | 2 | one 720 KB | none | 512 KB | 640 KB | MCGA | 12-inch color | All-in-one | Template:Date table sorting | Space Saving Keyboard included | |
| IBM PS/2 Model 25 Collegiate | 8525-C02 | Intel 8086 | 8 (0 w) | ISA, 8-bit | 2 | 2 | two 720 KB drives | none | 640 KB | 640 KB | MCGA | 12-inch monochrome | All-in-one | Template:Date table sorting | ||
| IBM PS/2 Model 25 SX | 8525-K00 | Intel 386SX | 20 MHz | ISA, 16-bit | 3 | 2 | one 1.44 MB | none | 1 MB | up to 16 MB | VGA | 12-inch color | All-in-one | Template:Date table sorting | ||
PS/2 Server
... (additional Server 85 versions featuring incremental enhancements in HDD capacity and RAM) ... Server 95 lineup commences here, offering more slots and drive bays: Server 95 8595-0K6 i486 33 style="background:#CCF" | MCA, 32-bit 8 8 single 1.44 MB 104 MB (SCSI) 8 MB 256 MB SVGA optional Tower Template:Unknown ... (further Server 95 models with variations in processor speed, memory size, and storage) ... Server 95 Array models equipped with additional drive bays and RAID capabilities: Server 95 Array 9595-3NG Intel DX2 66 style="background:#CCF" | MCA, 32-bit 8 9 single 1.44 MB 3×540 MB (SCSI) 8 MB 256 MB SVGA optional Tower Template:Date table sorting Premium Server versions featuring pre-installed networking solutions: Premium Server 95 9595-Z0x Intel DX2 / Pentium (original) 66 style="background:#CCF" | MCA, 32-bit 8 7 single 2.88 MB 1 GB (SCSI) 8 MB 256 MB SVGA optional Tower Template:Date table sorting Comes with pre-loaded IBM LAN Server or Novell NetWare Top-tier dual CPU configurations for superior processing power: Server 295 8600-001 /8600-002 /8600-003 i486 (single and dual) 33 to 50 style="background:#CCF" | MCA, dual, 32-bit 12 10 single 1.44 MB 400 MB/1 GB (SCSI) 32 MB 128 MB SVGA optional Tower Template:Date table sorting Supports up to 28 GB hot-swappable disks, compatible with RAID-5; dual processors optional or standard per variant; exclusively compatible with IBM drives| Model | IBM P/N | CPU | Clock rate (MHz) |
Bus type | Slot count | Drive bays count | FDD | HDD | Base RAM |
Max. RAM |
Graphics adapter | Display | Chassis type | Launch date | Remarks |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Server 85 | 9585-0X6 | Intel 486SX | 33 | MCA, 32-bit | 8 | 7 | single 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 | single 2.88 MB | 160 MB (SCSI) | 8 MB | 64 MB | SVGA | optional | Tower | Template:Date table sorting | |
| Server 85 | 9585-0XA | i486SX | 33 | MCA, 32-bit | 8 | 7 | single 2.88 MB | 208 MB/212 MB (SCSI) | 8 MB | 64 MB | SVGA | optional | Tower | Template:Date table sorting | |
| Server 85 | 9585-0XD | i486SX | 33 | MCA, 32-bit | 8 | 7 | single 2.88 MB | 320 MB (SCSI) | 8 MB | 64 MB | SVGA | optional | Tower | Template:Date table sorting |
Portables
| Model | IBM P/N | Processor | Clock Speed (MHz) |
Bus Type | Number of slots |
Number of Drive Bays |
FDD | HDD | Default RAM |
Maximum RAM |
Video Adapter | Display | Form Factor | Release Date | Remarks |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P70 | 8573-031 | Intel 386 | 16 | MCA, 32-bit | 2 (one 16-bit, one 32-bit) | 0 | one 1.44 MB | 30 MB (ESDI) | 2 MB | 8 MB | VGA | Monochrome gas plasma | Portable | Template:Date table sorting | Features optional slot for i387 co-processor |
| P70 | 8573-061 | Intel 386 | 20 | MCA, 32-bit | 2 (one 16-bit, one 32-bit) | 0 | one 1.44 MB | 60 MB (ESDI) | 2 MB | 8 MB | VGA | Monochrome gas plasma | Portable | Template:Date table sorting | Equipped with optional slot for i387 co-processor |
| P70 | 8573-121 | Intel 386 | 20 | MCA, 32-bit | 2 (one 16-bit, one 32-bit) | 0 | one 1.44 MB | 120 MB (ESDI) | 2 MB | 8 MB | VGA | Monochrome gas plasma | Portable | Template:Date table sorting | Includes slot supporting optional i387 co-processor |
| P75 | 8573-161 | Intel 486 | 33 | MCA, 32-bit | 4 (two 16-bit, two 32-bit) | 0 | one 1.44 MB | 160 MB (SCSI) | 4 MB | 16 MB | Video Graphics Array | Monochrome gas plasma | Portable | Template:Date table sorting | Integrated SCSI controller |
| Model | IBM P/N | Processor | Clock Speed (MHz) | Bus Type | Slots | Drive Bays | FDD | HDD | Default RAM | Max RAM | Video Adapter | Display | Form Factor | Release Date | Notes |
|---|
Related systems
| Model | IBM P/N | Processor | Clock Speed (MHz) | } |
|---|
| Model | IBM P/N | CPU | Operating frequency (MHz) |
Bus type | Slot count | Drive bay count | FDD | HDD | Default 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 | ROMP CPU installed on daughterboard; incompatible for concurrent use 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 | ROMP CPU on daughter card; cannot operate simultaneously with the 286 processor |
| 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 | ROMP processor mounted on daughterboard; not usable in 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 | ROMP chip on daughter card; cannot be used concurrently with the Intel 286 CPU |
| Model | IBM P/N | Processor | Clock speed (MHz) | Bus type | Number of slots | Number of drive bays | FDD type | HDD capacity | Base RAM | Max RAM | Video adapter type | Display included | Enclosure type | Release date | Additional information |
|---|
| Model | IBM P/N | Processor | Clock speed (MHz) | Bus type | Number of slots | Number of drive bays | FDD type | HDD capacity | Base RAM | Max RAM | Video adapter type | Display included | Enclosure type | Release date |
|---|
See also
References
| Model | IBM P/N | Processor | Clock speed (MHz) | Bus specification | Slots | Drive bays | FDD | HDD | Stock RAM | Max RAM | Video adapter | Monitor | Form factor | Date introduced |
|---|