Dennis Ritchie

Unix creator Dennis Ritchie
Image via Wikipedia

Dennis Ritchie, the inventor of the C programming language and the Unix operating system, has died.

If great men stand on the shoulders of giants, then Ritchie was one of the greatest giants of all.

Unix (including Mac OSX), Linux and Windows were or are written in C. (In Windows’s case it has now moved on to C++, a direct descendant of C). Your iPhone‘s operating system iOS is written in ObjectiveC which, as the name suggests, is also a derivative of the great man’s work.