bell-labs
There are 6 repositories under bell-labs topic.
dspinellis/unix-history-repo
Continuous Unix commit history from 1970 until today
dspinellis/unix-history-make
Code and data to create a git repository representing the Unix source code history
amakukha/tmg
McIlroy's TMG compiler-compiler in portable C
Spydr06/BCause
BCause (pronounced "because") is a compiler for the old B programming language (1969) for modern systems.
avindra/unix-info
A collection of primary and secondary references on the development, history and extent of the UNIX operating system.
qrush/plan9
Plan 9 from Bell Labs is a distributed operating system, originating in the Computing Science Research Center (CSRC) at Bell Labs in the mid-1980s, and building on UNIX concepts first developed there in the late 1960s. The final official release was in early 2015.