(a older member of the lisp family of programming languages)

“The Revised Maclisp Manual describes the programming language MACLISP, which ran on the DEC PDP-10 and Honeywell 6180/6880. This newly-updated Sunday Morning Edition features many editorial corrections, an enhanced hypertext index, and a Common Lisp Conversion guide that offers advice on upgrading old MACLISP programs to run in Common Lisp.” http://www.maclisp.info/pitmanual/index.html