Micro Channel Architecture


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Micro Channel Architecture

(architecture)
(MCA) IBM's proprietary 32-bit bus, used in high-end PS/2 personal computers. Micro Channel is designed for multiprocessing. It eliminates potential conflicts that arise when installing new peripheral devices. MCA is *not* compatible with either EISA or XT bus architecture so older cards cannot be used with it.

As with the ROM BIOS in the first IBM PCs, figuring out the Micro Channel's secrets has been an arduous task of reverse engineering ever since the PS/2 line was announced. Consequently, the MCA has never become as wide spread as the competing EISA standard.
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Since the introduction of the Micro Channel Architecture in 1987, IBM has performed this function.
The large number of installed systems, the superiority of the architecture and good margins are obviously convincing reasons for developers to use Micro Channel Architecture," said Ramiz Zakhariya, president of the association.
Network Peripherals is the only vendor offering FDDI adapters for all popular system bus architectures including EISA, ISA, Micro Channel Architecture (MCA) and PCI, as well as SBus.
The new Micro Channel Architecture specification was reviewed by the membership and will be available in final print format in Nov.
High-End Features, Not High Prices The IBM ThinkPad 700C also features an IBM 486SLC/25 MHz processor that's upgradeable to 50 MHz, a co-processor socket, a removable 120 MB hard-disk drive, 4 MB of RAM expandable to 16 MB, IBM's Micro Channel architecture and a 2 - 3.
Network Peripherals is the only vendor offering FDDI adapters for all popular system bus architectures, including EISA, ISA, SBus, Micro Channel Architecture (MCA) -- and now PCI.