For questions regarding the LISP (List Processing) computer language, as implemented on retrocomputers.

The Lisp computer language was introduced in 1958. Originally introduced on an IBM processor, some of the language's terminology retains the terminology of that processor (e.g. the CAR & CDR elements of a list)

Lisp in various forms, and derivatives such as Clojure, is still in use today. Use this tag for questions regarding Lisp on retrocomputers.