IBM PC family BIOS comparison Shiell, Jon

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Shiell, Jon
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Business; Computers; Directories
A series of table compare the various basic input-output systems (BIOS) of IBM Corp.'s PC and PS-2 lines of personal computers. A BIOS provides a common interface for device-level control for I-O devices, enabling the programmer to describe any hardware-dependent portions of a program as a set of primitive routines. The PC BIOSes are contained in ROM on the motherboard and includes BASIC and a series of power-on self test (POST) routines for checking out the system when it is turned on. The PS-2 computers, except for the Model 30, include two BIOS versions, one for the OS-2 operating system which is not covered in these tables, and the other which is compatible with prior PCs and is covered.
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