C.A.R. Hoare, or Charles Antony Richard Hoare, is a British computer scientist known for his significant contributions to the field of computer science. He is best known for developing the Quicksort algorithm, which is widely used for sorting data efficiently. Hoare also introduced the concept of Hoare logic, a formal system used to reason about the correctness of computer programs. Born on January 30, 1934, Hoare has received numerous awards for his work, including the Turing Award in 1980. His research has had a lasting impact on programming languages and software engineering, influencing how developers create and verify software systems.