History of O.S

Unix operating system

Sep 11, 1969

*Unix
*Linux
*Bell Laboratories, Ken Thompson
*$1200

CP/M operating system

Sep 11, 1976

*Intergalactic Digital Research
*Gary Kildall
*$100

BSD

Sep 11, 1977

*

TRS-DOS

Sep 11, 1978

*TRS-80
*Radio Shack
*$500

APPLE II

Sep 11, 1979

*Apple
*Steve Wozniak
*$500

IBM PC

Sep 11, 1981

*Julius E. Pitrap
*