The Programmer's Personal Computer Source Book by Thom Hogan
This compendium of information is a computer-side reference for MS-DOS and Windows programmers. This second edition is updated and expanded to cover recent hardware releases and the latest versions of DOS and Windows. New material includes: the latest version of the Lotus/Intel/Microsoft Expanded Memory Specification; CD-ROM extensions; the PS/2 Model 70; the Hayes modem; the latest version of the Microsoft Mouse driver; 80486, 80386x, 80387 and Weitek 3167 chips; POST (Diagnostic) Error Messages and more.