Erlang Programming Language



Erlang is a functional programming language which also has a runtime environment. It was built in such a way that it had integrated support for concurrency, distribution and fault tolerance. Erlang was originally developed to be used in several large telecommunication systems from Ericsson. he term Erlang is used interchangeably with Erlang/OTP, or Open Telecom Platform (OTP), which consists of the Erlang runtime system, several ready-to-use components (OTP) mainly written in Erlang, and a set of design principles for Erlang programs


History:

The first version of Erlang was developed by Joe Armstrong, Robert Virding and Mike Williams in 1986. It was originally a proprietary language within Ericsson. It was later released as an open source language in year 1998. Erlang, along with OTP, a collection of middleware and libraries in Erlang, are now supported and maintained by the OTP product unit at Ericsson and widely referred to as Erlang/OTP.


Erlang was designed with the aim of improving the development of telephony applications. In 1992, work began on the BEAM virtual machine (VM) which compiles Erlang to C using a mix of natively compiled code and threaded code to strike a balance between performance and disk space. According to Armstrong, the language went from lab product to real applications following the collapse of the next-generation AXE telephone exchange named AXE-N in 1995. As a result, Erlang was chosen for the next asynchronous transfer mode (ATM) exchange AXD


Installation

To download Erlang, one must go to the following url − www.erlang.org/downloads.


This page has a variety of downloads and also the steps required to download and install the language on Linux and Mac platforms.


Click on the ‘OTP 18.3 Windows 32-bit Binary File’ to begin the download of the Erlang Windows Installation file.


The following steps detail how Erlang can be installed on Windows −


Step 1 − Launch the Installer downloaded in the earlier section. After the installer starts, click Run.



Step 2 − Click Next on the following screen to accept the default components, which will be installed.



Step 3 − Accept the default installation path and click Next.