Erlang

Erlang is a concurrent programming language designed for programming fault-tolerant distributed systems at Ericsson and has been (since 2000) freely available subject to an open-source license. More recently, we've seen renewed interest in Erlang, as the Erlang way of programming maps naturally to multicore computers. In it the notion of a process is fundamental, with processes created and managed by the Erlang runtime system, not by the underlying operating system. The individual processes, which are programmed in a simple dynamically typed functional programming language, do not share memory and exchange data through message passing, simplifying the programming of multicore computers. Erlang2 is used for programming fault-tolerant, distributed, real-time applications. What differentiates it from most other languages is that it's a concurrent programming language; concurrency belongs to the language, not to the operating system. Its programs are collections of parallel processes cooperating to solve a particular problem that can be created quickly and have only limited memory. © 2010 ACM 0001-0782/10/0900 $10.00.