Since he did AI work in the 50's, probably a lot of his work was written in LISP or IPL, which had many of the concepts that LISP later used. Most of his high-p

Since he did AI work in the 50's, probably a lot of his work was written in LISP or IPL, which had many of the concepts that LISP later used. Most of his high-profile inventions (Computer mice, Hypertext, Interactive Computers) were first commercialized on LISP machines in the 80s. LISP Machines also pioneered some other concepts such as windowing ystems, graphic rendering, modern networking, garbage collection, etc. There is a fun little demo on youtube here; https://www.youtube.com/watch?v=o4-YnLpLgtk https://www.youtube.com/watch?v=o4-YnLpLgtk . That shows off a LISP machine roughly as it was written in the 80s/90s.