Common Lisp is a high performance compiled language, It is used as a general purpose programming language and AI language, LISP is based on “LISt Processing”. Linked List are one of the Lisp language’s major data structures. Lisp operate on forms, each Lisp form is either an atom or List of forms. These atoms are numbers, string and structures. CLISP includes an interpreter, a compiler and debugger, MOP, CLOS, arbitrary precision floats, a foreign language interface and a socket interface. Command line editing is provided by readline which makes it one of the nicer lisps to use interactively - you can auto-complete function and file names with tab, use up arrow to get previous commands and it does paren-matching.
The Common LISP environment follows the algorithm below when interacting with users:
loop read in an expression from the console; evaluate the expression; print the result of evaluation to the console; end loop.
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