POP-2 is a programming language created in the early 1960s by a team at the University of Edinburgh led by David Hartley. It was designed as a successor to the language POP-1, which was also created at Edinburgh.
POP-2 is a very powerful language, with a rich set of features. It has a strong type system, supporting both static and dynamic types. It also has a sophisticated module system, which allows for a high degree of code reuse and modularity.
POP-2 is also notable for its support for concurrent programming. It has a built-in concurrency model, which makes it easy to write programs that can take advantage of multiple processors.
Despite its many strengths, POP-2 has largely been overshadowed by other languages, such as Lisp and Prolog. Nevertheless, it remains an interesting and influential language, with a small but dedicated community of users.