William Worthington (Bill) Pugh Jr. is an American computer scientist who invented the skip list and the Omega test for deciding Presburger arithmetic. He was the co-author of the static code analysis tool FindBugs, and was highly influential in the development of the current memory model of the Java language together with his PhD student Jeremy Manson.
Sir Charles Antony Richard Hoare is a British computer scientist best known for the development (in 1960, at age 26) of Quicksort, a well-known sorting algorithm. He also developed Hoare logic for verifying program correctness, and the formal language Communicating Sequential Processes (CSP) to specify the interactions of concurrent processes (including the dining philosophers problem) and the inspiration for the occam programming language.
Steve Russell is a programmer and computer scientist most famous for leading team of programmers that created the first computer video game, Spacewar, while studying at the Massachusetts Institute of Technology (MIT). The game was conceived in 1961 and released in 1962. It took Steve and his team about 200 man-hours to write the first version, which was developed on a DEC (Digital Equipment Corporation) PDP-1 minicomputer.
Steve also wrote the first two implementations of Lisp for the IBM 704 after having a class about the (until then) theoretical language. He invented the continuation to solve a problem for one of the users of his Lisp implementation.
Stephen Wolfram was born on August 29, 1959 in London, England, UK. He is a British scientist who is known worldwide as the creator of Mathematica (a widespread computational software) and Wolfram Alpha (a knowledge engine).