A eulogy in C
He was the designer and original developer of the C programming language, and a central figure in the development of Unix. He spent much of his career at Bell Labs. He was awarded the Turing Award in 1983, and the National Medal of Technology in 1999.
"Ritchie's influence rivals Jobs's; it's just less visible," James Grimmelman observed on Twitter. "His pointer has been cast to void *; his process has terminated with exit code 0."