Erlang programming language

Erlang is a general-purpose Programming language and runtime?. It is also available as a Open Source implementation. Named for A.K. Erlang, it is used in telecommunication hardware from Ericsson. It is suitable for distributed and soft real-time systems.

Erlang is also a measure of the use of a communication channel, particularly voice and in relation to a PABX. It is also named after A.K. Erlang. One Erlang implies a single channel in continuous use (or two channels at fifty percent use, and so on, pro rata).