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| Type | Date announced | Date withdrawn | Bus | No. of slots | No. of bays | Processor | Notes | Ref.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 | ||||||||
| 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 |