GEORGE was the name given to a series of operating systems released by International Computers and Tabulators (ICT) in the 1960s, for the ICT 1900 series of computers. These included GEORGE 1, GEORGE 2, GEORGE 3, and GEORGE 4. Initially the 1900 series machines, like the Ferranti-Packard 6000 on which they were based, ran a simple operating system known as executive which allowed the system operator to load and run programs from a Teletype Model 33 ASR based system console.