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Computer
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Platform
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PC, IBM compatible
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System Design Guide
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Microsoft Windows
PC 97 System Design Guide - A Technical Reference for Designing PCs and Peripherals for the Microsoft Windows Family of Operating Systems
PC 98 System Design Guide - A Technical Reference for Designing PCs and Peripherals for the Microsoft Windows Family of Operating Systems (C) 1997
PC 99 System Design Guide - A Technical Reference for Designing PCs and Peripherals for the Microsoft Windows Family of Operating Systems (C) 1998
PC 2001 System Design Guide - A Technical Reference for Designing PCs and Peripherals for the Microsoft Windows Family of Operating Systems
PC System Design Guide by Wikipedia (2017-11-16)
What does "Legacy" mean in the world of computers? by DEW Associates Corporation (2002)