|9 September 1941
|12 October 2011
|Alistair E. Ritchie
|Jean McGee Ritchie
|Computer Scientist and inventor of C programming language and with long-time colleague Ken Thompson, the Unix operating system. He Received the Turning Award from the ACM in 1983, the Hamming Medal from the IEEE in 1990 and the National Medal of Technology from President Clinton in 1999.
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