Stars
Original Apollo 11 Guidance Computer (AGC) source code for the command and lunar modules.
The original sources of MS-DOS 1.25, 2.0, and 4.0 for reference purposes
Continuous Unix commit history from 1970 until today
Virtual Apollo Guidance Computer (AGC) software
A set of minimal dependency bootstrap binaries
A project to resurrect Unix on the PDP-7 from a scan of the original assembly code
sectorforth is a 16-bit x86 Forth that fits in a 512-byte boot sector.
The working source code to PDP-11 Unix from 1972.
Galaga (1987) by Namco Limited for the Atari 7800
Ms. Pac-Man (1987) by General Computer Corporation for the Atari 7800
Dig Dug (1987) by Namco Limited for the Atari 7800
Lisp for the TI-83+ line of graphing calculators
Xevious (1988) by Namco Limited for the Atari 7800