IBM Personal Computer: Difference between revisions

Revision as of 23:58, 9 July 2003

Revision as of 00:25, 10 July 2003

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* The original PC failed miserably in the home market, but was widely used in business. The PC XT was an enhanced machine designed for business use. It had 8 expansion slots and a 10 [[megabyte]] [[hard disk]]. It could take 256 K of memory on the main board. It was usually sold with an [[MDA]] (Monochrome Display Adapter). The processor was still a 4.77 [[MHz]] [[Intel 8088]] and the expansion [[computer bus|bus]] still 8-bit [[ISA]] with [[XT bus architecture]].

* The PC AT used an [[Intel 80286]] processor, originally at 6 MHz and later 8. It had a 16-bit ISA bus and 20 [[meg]]20MB harddrive. IBM made some attempt at marketing it as a multi-user machine, but it sold mainly as a faster PC for power users.

* [[IBM Convertible]]

* [[IBM Portable]]