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MCA (Micro Channel Architecture)

In 1986 the new 386 machines came with 32 bit architecture.

A new version of personal system/2 (PS/2) & created a preparatory expansion bus called MCA as part of the design.
It runs at 10 MHz & provided 32bit data path

Advantage:
  • MCA is a "Self Configured" device.
  • Supports "BUS Mastering".
Disadvantage:
  • It is not compatible with older ISA card.

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