Ken Thompson is the original bearded Unix hacker. He has spent a career working on whatever he finds interesting, which has, at various times, included analog computing, systems programming, regular expressions, and computer chess.
Hired as a researcher at Bell Labs to work on the MULTICS project, after Bell Labs pulled out of MULTICS, Thompson went on, with Dennis Ritchie, to invent Unix, an endeavor for which he fully expected to be fired. He also invented the B programming language, the precursor to Dennis Ritchie's C.
Later he got interested in computer chess, building Belle, the first special-purpose chess computer and the ...
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