|Paradigms||Multi-paradigm: functional, procedural, reflective, meta|
|Designed by||Richard Greenblatt|
Jon L. White
|Developer||MIT: Project MAC|
|First appeared||July 1966|
|Typing discipline||dynamic, strong|
|Implementation language||Assembly language, PL/I|
|OS||Incompatible Timesharing System, TOPS-10, TOPS-20, Multics|
|Filename extensions||.lisp, .fasl|
Maclisp (or MACLISP, sometimes styled MacLisp or MacLISP) is a programming language, a dialect of the language Lisp. It originated at the Massachusetts Institute of Technology's (MIT) Project MAC (from which it derived its prefix) in the late 1960s and was based on Lisp 1.5. Richard Greenblatt was the main developer of the original codebase for the PDP-6; Jon L. White was responsible for its later maintenance and development. The name Maclisp began being used in the early 1970s to distinguish it from other forks of PDP-6 Lisp, notably BBN Lisp.
The higher-level language used for most of the vision laboratory program is the PDP-6 LISP System. This system is based chiefly on the LISP 1.5 programming language, but has been extensively modified in a number of ways. These include many new functions and services, including facilities for linking with programs written in other languages.