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ITS topics
ITS, the Incompatible Timesharing System, was written in 1967 at the MIT AI Lab. It was first running on a PDP-6, but was moved to PDP-10 KA10 processors, and in 1975 to a KL10 processor. ITS was host to a number of influential programs: Lisp, Zork, MAZE, Scheme, CLU, Macsyma, SHRDLU, CONS and CADR Lisp machines, Logo, Emacs, MacHack VI.