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Photo of Dennis M. Ritchie

Photo: Denise Panyik-Dale / CC BY 2.0 (source: Wikimedia Commons)

Dennis M. Ritchie

American computer scientist

September 9, 1941 – October 12, 2011 · Bronxville, New York, United States

  • New York
  • computer scientist
  • programmer
  • author

Dennis M. Ritchie was a computer scientist, programmer and author, born on September 9, 1941 in Bronxville, New York, United States. Death is recorded on October 12, 2011, at the age of 70. Dennis M. Ritchie was educated at Summit High School and Harvard University. Recorded honors include Turing Award (1983), National Medal of Technology and Innovation (1998), Harold Pender Award (2003) and 5 more. Credited works include The C Programming Language, ALTRAN and B.

My Take

Dennis Ritchie belongs to that rare class of people who quietly rebuilt the world without ever needing the spotlight. C and Unix are not just achievements; they are the bedrock that nearly every modern device still rests on, decades later. What moves me is the contrast between his enormous influence and his low-key public presence. The Turing Award and National Medal of Technology only hint at the scale of what he and Ken Thompson set in motion. He passed in 2011, often overshadowed by flashier names, yet I think every programmer owes him a debt. Foundational work like his rarely gets the reverence it deserves.

1. Profile

Name (English)
Dennis M. Ritchie
Name (Japanese)
デニス・リッチー
Reading
でにす・りっちー
Born
September 9, 1941 – October 12, 2011
Zodiac / Chinese zodiac
Virgo / Snake
Origin
Bronxville, New York, United States
Occupation
computer scientist / programmer / author / mathematician

2. Background

High school
Summit High School
University
Harvard University

Awards & achievements

  • 1983 Turing Award
  • 1998 National Medal of Technology and Innovation
  • 2003 Harold Pender Award
  • 1982 IEEE Emanuel R. Piore Award
  • 1997 Computer History Museum Fellow
  • 1994 Computer Pioneer Award
  • 1983 ACM Software System Award
  • 1990 IEEE Richard W. Hamming Medal

3. Works & records

CategoryTitleRoleYear
Notable workThe C Programming Language
Notable workALTRAN
Notable workB
Notable workBCPL

5. About this entry

Tags

  • New York
  • computer scientist
  • programmer
  • author
Last updated
2026-06-17

Facts are limited to publicly available information up to 2024; non-public or unconfirmed items are omitted. English text is machine-assisted (facts translated by Sonnet, "My Take" written by Opus 4.8). The Japanese page is the source of record.

Frequently asked questions

When was Dennis M. Ritchie born?

Born September 9, 1941.

When did Dennis M. Ritchie die?

Died October 12, 2011, aged 70.

Where was Dennis M. Ritchie from?

Dennis M. Ritchie was from Bronxville, New York, United States.

What did Dennis M. Ritchie do?

Dennis M. Ritchie worked as computer scientist, programmer, author, mathematician.

What was Dennis M. Ritchie known for?

Notable works include The C Programming Language, ALTRAN, B.

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