Driven by the free and open source software movement over the last years a lot of programming languages were developed and released into public. Some of them became popular and successful in certain fields. Because every programming language has its advantages and disadvantes in different fields, one has to deal with some programming languages to have a tool in ones toolbox for every task.
A not complete list of our major programming languages can be found below. The list is never up-to-date due to the permanent study of new approaches and languages. Currently (at the time of writing) Scala, Clojure, jRuby and Erlang are under study and observation.