The UNIX Time-Sharing System Dennis Ritchie and Ken Thompson  Background of authors at Bell Labs  Both won Turing Awards in 1983  Dennis Ritchie  Key developer of The C Programming Lanuage, Unix, and Multics  Ken Thompson  Key developer of the B programming lanuage, Unix, Multics, and Plan 9  Also QED, ed, UTF-8 Unix slides based on Hakim's Fall 2011 materials Mach slides based on materials on the CMU website
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