Micro Channel architecture
Micro Channel architecture, or the Micro Channel bus, is a proprietary 16- or 32-bit parallel computer bus introduced by IBM in 1987 which was used on PS/2 and other computers until the mid-1990s. Its name is commonly abbreviated as "MCA", although not by IBM. In IBM products, it superseded the ISA bus and was itself subsequently superseded by the PCI bus architecture.
| Micro Channel architecture | |
IBM XGA-2 32-bit graphics card | |
| Year created | 1987 |
|---|---|
| Created by | IBM |
| Supersedes | ISA |
| Superseded by | PCI (1993) |
| Width in bits | 16 or 32 |
| Speed | 10 MHz |
| Style | Parallel |
| Hotplugging interface | No |
| External interface | No |
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