On October 12, 2011, computer scientist Dennis Ritchie, who designed the UNIX operating system as well as the C programming language, passed away. Thanks to his contributions, computing made a huge leap forward and enabled real-time processing and multi-threading.
D. Shelepov, and A. Fedorova. Proceedings of the Workshop on the Interaction between Operating Systems and Computer Architecture, in conjunction with ISCA-35, Beijing, China, (2008)