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v t e Unix by Bell Labs
Research	Version 6 Unix (1975) Version 7 Unix (1979) UNIX/32V (1979)
Internal	CB UNIX (c. 1975) PWB/UNIX (1977) MERT/DMERT/UNIX-RT
Commercial	UNIX System III (1982) UNIX System V (1983)
People	Stephen R. Bourne Lorinda Cherry Tom Duff Stuart Feldman Brian Kernighan David Korn Mike Lesk John Mashey Douglas McIlroy Lee E. McMahon Joe Ossanna Rob Pike Dennis Ritchie Ken Thompson
Companies	AT&T Computer Systems Unix System Laboratories
Category

Template:Bell Unix Source: en.wikipedia.org/wiki/Template:Bell_Unix