Lisp (short for “LISt Processing”) is a family of programming languages, originally developed in the late 1950s by John McCarthy. Known for its unique, parenthesis-heavy syntax and powerful features for symbolic computation and recursive functions, Lisp has been influential in artificial intelligence research and the development of programming language theory.

Yes, Lisp remains relevant today. Its pioneering features have shaped many modern programming languages and paradigms. Though less common in mainstream applications, its dialects like Scheme and Clojure continue to influence research, education, and specialized applications, particularly in areas such as artificial intelligence and symbolic computation.