Proper noun (person)
Alan Mathison Turing
(June 23, 1912 – June 7, 1954) English computer scientist known as the "father of computer science"; inventor of a famous test used to see if a computer can think and behave like a human.
Alan Turing helped invent the 'Tunny' machine, which cracked the Germans' 'Enigma machine' encryption code during World War II.