<P> The PC System Design Guide (also known as the PC 97, PC 98, PC 99, or PC 2001 specification) is a series of hardware design requirements and recommendations for IBM PC compatible personal computers, compiled by Microsoft and Intel Corporation during 1997--2001 . They were aimed at helping manufacturers provide hardware that made the best use of the capabilities of the Microsoft Windows operating system, and to simplify setup and use of such computers . </P> <P> Every part of a standard computer and the most common kinds of peripheral devices are defined with specific requirements . Systems and devices that meet the specification should be automatically recognized and configured by the operating system . </P> <P> Four versions of the PC System Design Guide were released . Within each version, a distinction was made between the requirements of a Consumer PC, an Office PC and an Entertainment PC . </P> <Table> <Tr> <Th> Version </Th> <Th> Date </Th> </Tr> <Tr> <Td> PC 97 </Td> <Td> February 9, 1998 </Td> </Tr> <Tr> <Td> PC 98 </Td> <Td> December 31, 1998 </Td> </Tr> <Tr> <Td> PC 99 </Td> <Td> July 14, 1999 </Td> </Tr> <Tr> <Td> PC 2001 </Td> <Td> November 2, 2000 </Td> </Tr> </Table>

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