|(architecture)||Micro Channel Architecture - (MCA) IBM's proprietary 32-bit bus, used in
high-end PS/2 personal computers. Micro Channel is
designed for multiprocessing. It eliminates potential
conflicts that arise when installing new peripheral devices.
MCA is *not* compatible with either EISA or XT bus architecture so older cards cannot be used with it.|
As with the ROM BIOS in the first IBM PCs, figuring out the Micro Channel's secrets has been an arduous task of reverse engineering ever since the PS/2 line was announced. Consequently, the MCA has never become as wide spread as the competing EISA standard.