Alan Turing

Alan Mathison Turing (23 June 1912 – 7 June 1954), was a British mathematician, logician, cryptanalyst and computer scientist. He was highly influential in the development of computer science, providing a formalisation of the concepts of "algorithm" and "computation" with the Turing machine, which played a significant role in the creation of the modern computer. Turing is widely considered to be the father of computer science and artificial intelligence.   He killed himself because he was punished for being gay.