What is the full meaning of MCA bus ISA bus VESA bus EISA bus in computer?

Answer 1

mca bus = Micro Channel Architecture was a IBM Standard, proprietary in this case, for 16 to 32 bit buses on their PS/2 Computers. Never widely adopted.

isa bus = Industry Standard Architecture bus is available in 8 bit and 16 bit standards and was used for expansion devices on a computer prior to PCI's emergence.

eisa bus = Some times called "Enhanced ISA" or "Extended Industry Standard Architecture" was available as an expansion of ISA bus for computers. EISA was backwards compatible with XT or ISA Boards for example. ALso was available up to 32 bit.

vesa bus = Video Electronics Standards Association. In this case a VESA local bus is a bus which works along side ISA to provide high-speed access to Memory for Video processing/display. Not commonly used any longer.

pci bus = Peripheral Component Interconnect, an expansion port of a more advanced kind then ISA. Faster then all previous buses up to this point.

Hope this helps!

Answer 2

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