Modula-2+ is a programming language descended from the Modula-2 language. It was developed at DEC Systems Research Center (SRC) and Acorn Computers Ltd Research Centre in Palo Alto, California. Modula-2+ is Modula-2 with exceptions and threads. The group who developed the language was led by P. Rovner in 1984.Main differences with Modula-2:Concurrency (different from the concept of coroutines which has already been there as a part of classic Modula-2)Exception handlingGarbage collection↑