MAD

Designed by: Bernard Galler, Bruce Arden, Robert M. Graham

MAD (Michigan Algorithm Decoder) is a programming language and compiler for the IBM 704 and later the IBM 709, IBM 7090, IBM 7040, UNIVAC 1107, UNIVAC 1108, Philco 210-211, and eventually IBM System/370 mainframe computers.

Developed in 1959 at the University of Michigan by Bernard Galler, Bruce Arden and Robert M.

Graham, MAD is a variant of the ALGOL language.

It was widely used to teach programming at colleges and universities during the 1960s and played a minor role in the development of Compatible Time-Sharing System (CTSS), Multics, and the Michigan Terminal System computer operating systems.

The original version of the chatbot ELIZA was written in MAD-SLIP.The archives at the Bentley Historical Library of the University of Michigan contain reference materials on the development of MAD and MAD/I, including three linear feet of printouts with hand-written notations and original printed manuals.