This monograph provides information about public domain and user-supported software for IBM compatible personal computers. The Personal Computer Software Interest Group (PC-SIG) has developed this software directory for people wanting to order software from, or submit software to, the PC-SIG Library. Six sections detail: an introduction to public domain and user-supported software; an introduction to the commands needed to run programs on the IBM Disk Operating System (DOS); program descriptions; contents of available disks; indexes; and how to order disks and add programs to the PC-SIG Library. Glossary, program order forms, and software submission forms are included.

With more than 350,000 copies in print, this classic is the most comprehensive learning tool available for understanding and programming the IBM PC family of computers. Now revised and expanded, it has become even more indispensable.