MCA Buses Hardware

MCA Buses Hardware

MCA

Micro Channel Architecture The internal 32-bit bus inside some of IBM's PS/2 machines. It was originally introduced by IBM as a proprietary bus which manufacturers of IBM clone PCs would have to pay IBM large royalties if they wanted to include the bus in their machines. This strategy backfired and few people wanted IBM PCs with the MCA bus.

Top: Computers: Hardware: Buses: MCA

- From Christophe Beauregard.
- Information about IBM PS/2 machines. Although mainly directed at the MicroChannel systems (model 50 and above) there may be the occasional snippet about the lower end ISA-based systems as well.
- IBM's answer to the failings of its older PC bus, which is now referred to as the ISA bus, article discusses the problems and short falls it had.
- Micro Channel Bus technical summary.
- Here are some links to information about the MicroChannel Architecture (MCA) bus, as used in many IBM PS/2, RS/6000, AS/400, and 370 machines.
- The effects of M.A.D. Microchannel Addictive Disorder.
- IBM Microchannel Enthusiasts Page including his famous QBMCA Microchannel Adapter Identification Software and hundreds of ADFs for IBM MCA-machines.

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