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Micro-channel architecture (MCA)
A bus architecture developed by IBM for its PS/2 computers. Designed for multiprocessing, MCA can function as a 16-bit or a 32-bit bus. It is incompatible with the original ISA bus. Although it was intended to replace ISA, the bus was never widely adopted and was largely overshadowed by the EISA bus, a 32-bit bus that worked with ISA cards. |