Computer Hardware Terms, Glossary and Dictionary

Micro Channel Architecture (MCA) is a proprietary 16 or 32-bit parallel computer bus created by IBM in the 1980s for use on their PS/2 computers. It is called a bus architecture because it defines how peripheral devices and internal components communicate across the computer's expansion bus. MCA has been replaced by PCI. MCA is no longer used in new computer designs.

Related Terms

MCA: Micro Channel Architecture