Description
Author of MS-DOS, Paterson is a software developer whose work shaped the foundation of personal computing.
In 1978 he designed a schematic of Microsoft's Z-80 SoftCard, which had a Z80 CPU and ran the CP/M operating system on an Apple II. A month later, Intel released the 8086 CPU, and Paterson went to work designing an S-100 8086 board, which went to market in November 1979.
Along with other projects, he authored QDOS (Quick and Dirty Operating System), later to be renamed 86-DOS, which later became MS-DOS.
