Tony Hoare — British Scientist born on January 11, 1934,
Sir Charles Antony Richard Hoare FRS FREng, commonly known as Tony Hoare or C. A. R. Hoare, is a British computer scientist. He developed the sorting algorithm quicksort in 1959/1960. He also developed Hoare logic for verifying program correctness, and the formal language Communicating Sequential Processes to specify the interactions of concurrent processes and the inspiration for the occam programming language... (wikipedia)