
One of POP-11's features is that it supports first-class functions. It is the core language of the Poplogprogrammingenvironment developed originally by the University of Sussex, and recently in the School of Computer Science at the University of Birmingham which hosts the Poplog website, It is often used to introduce symbolic programming techniques to programmers of more conventional languages like Pascal, who find POP syntax more familiar than that of Lisp.


There are many dialects of Lisp in use today, among which are Common Lisp, Scheme, and Clojure. As a result, Lisp programs can manipulate source code as a data structure, giving rise to the macro systems that allow programmers to create new syntax or even new domain-specific programming languages embedded in Lisp. Linked lists are one of the Lisp language's major data structures, and Lisp source code is itself made up of lists. Lisp is a practical mathematical notation for computer programs based on lambda calculus.It includes features intended to support programs that could perform general problem solving, such as lists, associations, schemas (frames), dynamic memory allocation, data types, recursion, associative retrieval, functions as arguments, generators (streams), and cooperative multitasking. IPL was the first language developed for artificial intelligence.AIML (meaning 'Artificial Intelligence Markup Language') is an XML dialect for use with A.L.I.C.E.-type chatterbots.
