List of IBM Personal Computer models
The IBM Personal Computer, commonly known as the IBM PC, spanned multiple models in its first generation, from 1981 to 1987. It eventually gave way to many splintering product lines after IBM introduced the Personal System/2 in April 1987.
Models
Original line
| Type | Date announced | Date withdrawn | Bus | No. of slots | No. of bays | Processor | Notes | Ref. | ||||||
| Personal Computer | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 16 KB | 64 KB | Diskless model; only means of data storage is through IBM Cassette BASIC | ||||||
| Personal Computer | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 48 KB | 64 KB | 160 KB | Single-sided, double-density floppy disk drive | |||||
| Personal Computer | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | |||||||||
| Personal Computer | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 64 KB | 64 KB | 160 KB | ||||||
| Personal Computer | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 64 KB | 64 KB | 320 KB | ||||||
| Personal Computer | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 64 KB | 64 KB | two 320 KB | ||||||
| Personal Computer | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 64 KB | 64 KB | 160 KB | Shipped without keyboard; includes adapter for integration with IBM 3278 terminal systems | |||||
| Personal Computer | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 64 KB | 64 KB | 320 KB | Shipped without keyboard; includes adapter for integration with IBM 3278 terminal systems | |||||
| Personal Computer | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 64 KB | 64 KB | two 320 KB | Shipped without keyboard; includes adapter for integration with IBM 3278 terminal systems | |||||
| Personal Computer | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 64 KB | 256 KB | 160 KB | ||||||
| Personal Computer | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 64 KB | 256 KB | 320 KB | ||||||
| Personal Computer | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 64 KB | 256 KB | two 320 KB | ||||||
| Personal Computer | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 64 KB | 256 KB | Diskless model; only means of data storage is through IBM Cassette BASIC | ||||||
| Personal Computer | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 256 KB | 256 KB | 360 KB | ||||||
| Personal Computer | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 256 KB | 256 KB | two 360 KB | ||||||
| Personal Computer | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 256 KB | 256 KB | 360 KB | Shipped without keyboard | |||||
| Personal Computer | ISA, 8-bit | 5 | 2 | Intel 8088 | 4.77 | 256 KB | 256 KB | two 360 KB | Shipped without keyboard | |||||
| Personal Computer XT | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 128 KB | 640 KB | 360 KB | 10 MB | |||||
| Personal Computer XT | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | 360 KB | 10 MB | |||||
| Personal Computer XT | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | 360 KB | ||||||
| Personal Computer XT | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | two 360 KB | ||||||
| Personal Computer XT | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 512 KB | 640 KB | 360 KB | 20 MB | Shipped with original IBM PC "Model F" keyboard | ||||
| Personal Computer XT | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 512 KB | 640 KB | 360 KB | 20 MB | Shipped with Enhanced Keyboard | ||||
| Personal Computer XT | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | 360 KB | Shipped with original IBM PC "Model F" keyboard | |||||
| Personal Computer XT | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | 360 KB | Shipped with Enhanced Keyboard | |||||
| Personal Computer XT | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | two 360 KB | Shipped with original IBM PC "Model F" keyboard | |||||
| Personal Computer XT | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | two 360 KB | Shipped with Enhanced Keyboard | |||||
| 3270 PC | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | 360 KB | Without printer adapter, fixed disk adapter, and keyboard | |||||
| 3270 PC | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | 360 KB | Without printer adapter and fixed disk adapter | |||||
| 3270 PC | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 320 KB | 640 KB | 360 KB | Without fixed disk adapter; stock onboard RAM increased to 384 KB in June 1984 | |||||
| 3270 PC | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 320 KB | 640 KB | 360 KB | 10 MB | With fixed disk adapter; stock onboard RAM increased to 384 KB in June 1984 | ||||
| Personal Computer XT/370 | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | 360 KB | ||||||
| Personal Computer XT/370 | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | 360 KB | 10 MB | |||||
| Personal Computer XT/370 | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 640 KB | 360 KB | 10 MB | |||||
| PCjr | Custom | Intel 8088 | 4.77 | 64 KB | 128 KB | |||||||||
| PCjr | Custom | Intel 8088 | 4.77 | 128 KB | 128 KB | 360 KB | ||||||||
| Portable Personal Computer | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 512 KB | 360 KB | ||||||
| Portable Personal Computer | ISA, 8-bit | 8 | 2 | Intel 8088 | 4.77 | 256 KB | 512 KB | two 360 KB | ||||||
| Personal Computer AT | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 256 KB | 512 KB | 1.2 MB | ||||||
| Personal Computer AT | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 512 KB | 512 KB | 1.2 MB | 20 MB | |||||
| Personal Computer AT | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 512 KB | 512 KB | 1.2 MB | 30 MB | |||||
| Personal Computer AT | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 512 KB | 512 KB | 1.2 MB | two 30 MB | Includes controllers for the IBM 4680 Store System | ||||
| Personal Computer AT | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 512 KB | 512 KB | 1.2 MB | two 20 MB | Includes controllers for the IBM 4680 Store System | ||||
| Personal Computer AT | ISA, 16-bit | 8 | 3 | Intel 80286 | 8 | 512 KB | 512 KB | 1.2 MB | 30 MB | |||||
| Personal Computer AT | ISA, 16-bit | 8 | 3 | Intel 80286 | 8 | 512 KB | 512 KB | 1.2 MB | 30 MB | Shipped with Enhanced Keyboard | ||||
| Personal Computer AT | ISA, 16-bit | 8 | 3 | Intel 80286 | 8 | 512 KB | 512 KB | 1.2 MB | Built to TEMPEST specifications | |||||
| Personal Computer AT | ISA, 16-bit | 8 | 3 | Intel 80286 | 8 | 512 KB | 512 KB | 1.2 MB | 30 MB | Built to TEMPEST specifications | ||||
| Personal Computer AT/370 | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 512 KB | 512 KB | 1.2 MB | 20 MB | |||||
| Personal Computer AT/370 | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 512 KB | 512 KB | 1.2 MB | 30 MB | |||||
| Personal Computer AT/370 | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 512 KB | 512 KB | 1.2 MB | 30 MB | 1 MB total RAM | ||||
| Personal Computer AT/370 | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 512 KB | 512 KB | 1.2 MB | 30 MB | 1 MB total RAM ; shipped with Enhanced Keyboard | ||||
| PC Convertible | ISA, 8-bit | Intel 8088 | 4.77 | 256 KB | 512 KB | two 720K | Application bundle | |||||||
| PC Convertible | ISA, 8-bit | Intel 8088 | 4.77 | 256 KB | 512 KB | two 720K | ||||||||
| [IBM Personal Computer IBM Personal Computer|XT Model 286|Personal Computer XT Model 286] | ISA, 16-bit | 8 | 2 | Intel 80286 | 6 | 640 KB | 640 KB | 1.2 MB | 20 MB | |||||
| Industrial Computer 5531 | ISA, 8-bit | 8 | 3 | Intel 8088 | 4.77 | 128 KB | 640 KB | 360 KB | 10 MB | Industrial version of the IBM PC XT | ||||
| Industrial Computer 5531 | ISA, 8-bit | 8 | 3 | Intel 8088 | 4.77 | 256 KB | 640 KB | 1.2 MB | Industrial version of the IBM PC XT | |||||
| Industrial Computer 5531 | ISA, 8-bit | 8 | 3 | Intel 8088 | 4.77 | 256 KB | 640 KB | 1.2 MB | 20 MB | Industrial version of the IBM PC XT | ||||
| 7531 Industrial Computer | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 512 KB | 1 MB | Industrial version of the IBM PC AT, tower form-factor | ||||||
| 7532 Industrial Computer | ISA, 16-bit | 8 | 3 | Intel 80286 | 6 | 512 KB | 1 MB | Industrial version of the IBM PC AT, 19-inch rack-mountable form factor | ||||||
| Industrial Computer 7552 | ISA, 16-bit MCA, 16-bit | 8 | 3 | Intel 80286 | 10 | 4 MB | Also known as "Gearbox", rack-mountable ruggedized modular industrial computer, hybrid MCA and ISA with compromised ISA signal lines—notable for introducing the Micro Channel architecture half a year before the announcement of the PS/2 line in April 1987 | |||||||
| Industrial Computer 7552 | ISA, 16-bit MCA, 16-bit | 8 | 3 | Intel 80286 | 10 | 4 MB | one 1.44 MB | 20 MB | Also known as "Gearbox", rack-mountable ruggedized modular industrial computer, hybrid MCA and ISA with compromised ISA signal lines—notable for introducing the Micro Channel architecture half a year before the announcement of the PS/2 line in April 1987 |
Successor lines
- Personal System/2
- Industrial System
- PCradio
- Ambra
- PS/note
- EduQuest
- ThinkPad
- PS/ValuePoint
- Aptiva
- PC Series
- NetVista
- ThinkCentre