In 1969, Dennis Ritchie and Ken Thompson created the computer operating system UNIX for the support of telecommunication switching systems as well as general purpose computing.
The 1970s and 1980s saw more and more computer-related inventions at the Bell
Laboratories as part of the personal computing revolution. In 1972, Dennis Ritchie
developed the compiled programming language C as a replacement for the interpreted
language B which was then used in a worse is better
rewrite
of UNIX. Also, the language AWK was designed
and implemented by Alfred Aho, Peter Weinberger, and Brian Kernighan of Bell
Laboratories. In 1972, Marc Rochkind invented the Source Code Control System.