PC and compatibles
General PC hardware, shared expansion buses, and upgrades for specific IBM PC models.
Expansion buses
ISA, Micro Channel, and EISA boards for PC-compatible systems.
| Computer, platform, or interface | Introduced | Products |
|---|---|---|
| EISA expansion boards Extended ISA expansion boards for EISA systems. EISA slots can accept many ISA cards, but EISA cards require the extended connector and an EISA host. | 1988 | 0 |
| ISA expansion boards ISA expansion boards for PC systems, including original 8-bit PC/XT cards and later 16-bit AT cards. Check each listing for bus width and software requirements. | 1981 | 8 |
| Micro Channel expansion boards Micro Channel expansion boards for IBM PS/2 and other MCA systems. MCA is electrically and mechanically distinct from ISA and EISA. | 1987 | 1 |
General hardware
Drives, input devices, and other upgrades using shared PC interfaces rather than one expansion-card bus or exact IBM model.
| Computer, platform, or interface | Introduced | Products |
|---|---|---|
| General PC hardware Upgrades for PC systems that use shared drive, keyboard, serial, parallel, display, or other interfaces rather than one expansion-card bus or exact IBM model. | 1981 | 0 |
IBM-specific systems
Upgrades whose evidence names a particular IBM PC model.
| Computer, platform, or interface | Introduced | Products |
|---|---|---|
| IBM Personal Computer 5150 The original IBM PC with 8-bit ISA expansion slots and external floppy-oriented storage. | 1981 | 4 |
| IBM Personal Computer XT 5160 IBM's hard-disk-equipped PC successor with eight 8-bit ISA expansion slots. | 1983 | 4 |