Dennis MacAlistair Ritchie (September 9, 1941 – c. October 12, 2011)[1][2][3][4] wis an American computer scientist who "helped shape the digital era."[1] He creatit the C programmin leid an, wi lang-time colleague Ken Thompson, the Unix operating seestem.[1] Ritchie an Thompson received the Turing Awaird frae the ACM in 1983, the Hamming Medal frae the IEEE in 1990 an the Naitional Medal o Technology frae Preses Clinton in 1999. Ritchie wis the heid o Lucent Technologies Seestem Saftware Research Department when he retired in 2007. He wis the 'R' in K&R C an commonly kent bi his uisername dmr.

Dennis MacAlistair Ritchie
Born9 September 1941(1941-09-09)
Bronxville, New York, U.S.
Diedc. 12 October 2011(2011-10-12) (aged 70)
Berkeley Heights, New Jersey, U.S.
Alma materHarvard Varsity
Kent forALTRAN
AwairdsTuring Awaird
Naitional Medal o Technology
Scientific career
FieldsComputer science
InstitutionsLucent Technologies
Bell Labs


  1. a b c Lohr, Steve (12 October 2011), "Dennis Ritchie, Programming Trailblazer, Dies at 70", The New York Times, retrieved 13 October 2011, Dennis M. Ritchie, who helped shape the modern digital era by creating software tools that power things as diverse as search engines like Google and smartphones, was found dead on Wednesday at his home in Berkeley Heights, N.J. He was 70. Mr. Ritchie, who lived alone, was in frail health in recent years after treatment for prostate cancer and heart disease, said his brother Bill.
  2. "Unix creator Dennis Ritchie dies aged 70". BBC News. 13 October 2011. Retrieved 14 October 2011. Pioneering computer scientist Dennis Ritchie has died after a long illness. … The first news of Dr Ritchie's death came via Rob Pike, a former colleague who worked with him at Bell Labs. Mr Ritchie's passing was then confirmed in a statement from Alcatel Lucent which now owns Bell Labs.
  3. Rob Pike (12 October 2011), (untitled post to Google+), retrieved 14 October 2011, I just heard that, after a long illness, Dennis Ritchie (dmr) died at home this weekend. I have no more information.
  4. Campbell-Kelly, Martin (13 October 2011), "Dennis Ritchie obituary", The Guardian, retrieved 13 October 2011, Dennis MacAlistair Ritchie, computer scientist, born 9 September 1941; died 12 October 2011