Alan Turing (1912 – 1954) - Turing is considered to be the father of theoretical computer science and artificial intelligence. During the Second World War, he worked at Bletchley Park, Britain's codebreaking centre. His work shortened the war in Europe by more than two years. Here seen in 1951.
Joan Clarke Murray codebreaker at Bletchley Park during World War II, became deputy head of Hut 8 in 1944. Code breaking was almost exclusively done by men during the war. Clarke was paid less than the men and felt that she was prevented from progressing further because of her gender. She was a English cryptanalyst and numismatist. You have Joan and the women of Bletchley Park to thank for changing the History of the World AND the fact that you’re reading this on a computer!