Dennis M. Ritchie, American software engineer. Achievements include co-developer of the Uniplex Information and Computing System Operating System in 1969; development of Commerce Programming Language; exploration of distributed operating systems, languages and routing/switching hardware. Member of National Academy of Engineering.
With Bell Laboratories, Murray Hill, New Jersey, since 1967. Head system software research department Computing Sciences Research Center Bell Laboratories (Lucent Technologies), 1990—2005. Head system software research, convergence software & computer science lab Bell Laboratories (Alcatel/Lucent), since 2005.
Head efforts to create Plan 9 operating system, 1995. Heads efforts to create the Inferno operating system, 96.
1990 - 2005