John Clifford Shaw (1922–1991) was a systems programmer at the RAND Corporation. He is a coauthor of the first artificial intelligence program, the Logic Theorist, and was one of the developers of Information Processing Language, a programming language of the 1950s. It is considered the true "father" of the JOSS language. One of the most significant events that occurred in the programming was the development of the concept of list processing by Allen Newell, Herbert A. Simon and Cliff Shaw during the development of the language IPL-V. He invented the linked list, on which almost all of computer technology now depends.