Control Program for Microcomputers


Control Program for Microcomputers

(operating system)(CP/M) An early microcomputer operating system written by Gary Kildall of Digital Research for8080 and Zilog Z80-based 8-bit computers. CP/M was verypopular in the late 1970s but was virtually wiped out byMS-DOS after the release of the IBM PC in 1981.

Many of CP/M's features and conventions strongly resemblethose of early DEC operating systems such as TOPS-10,OS/8, RSTS and RSX-11.

CP/M might have been the OS for the IBM PC instead ofMS-DOS but Kildall wanted to keep control of his creationand only license it to IBM. Big Blue however wanted to ownand control it completely. Kildall spent the day IBM's repswanted to meet him enjoying the perfect flying weather in hisprivate plane.