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.
You know, the fact that you can read your email on a cell phone as well as on your desktop computer or almost any other computer connected to the internet, in principle is possible thanks to mathematician Alonzo Church, who gave the proof (together with Alan Turing) that everything that is computable on the simple model of a Turing Machine, also is computable with any other 'computer model'.
61 years ago today, on June 14th 1951 the very first electronic computer produced in series (and in the United States), the UNIVAC I (Universal Automatic Computer) was delivered to the US States Census Bureau at the price of $1.6 Mio.
R. Dey, Z. Lu, and Y. Hong. (2018)cite arxiv:1803.07192Comment: Accepted for publication in IEEE International Symposium on Biomedical Imaging (ISBI) 2018 Copyright c 2018 IEEE.