Computer History
Contents
Source Code
Apollo 11 Guidance Computer
(1969) - Original Apollo 11 Guidance Computer (AGC) source code for the command and lunar modules
C compiler
(1972) - The earliest known versions of Dennis Ritchie's first C compiler (GitHub code mirror)
UNIX
(1972) - Continuous Unix commit history from 1972 until today
MS-DOS 31.8k
(archived)
(1982, 1983) - Version 1.25 and 2.0