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== Erlang Programming Language == [[File:Erlang logo.png|thumb|upright|Erlang logo]] The '''Erlang Programming Language''' is a popular functional programming language designed for building highly concurrent, fault-tolerant, and distributed systems. It was created by Joe Armstrong, Robert Virding, and Mike Williams at Ericsson in the late 1980s. Erlang was primarily developed for use in telecom applications, where reliability and fault tolerance are crucial. === History === The development of Erlang began in 1986 at Ericsson, a Swedish telecommunications company. Inspired by Prolog, Joe Armstrong, Robert Virding, and Mike Williams set out to create a language tailored specifically for building robust telecommunication systems. Named after Danish mathematician Agner Krarup Erlang, the language quickly gained popularity within Ericsson and was eventually released as open source in 1998. === Key Features === ==== Concurrency ==== Erlang excels at handling concurrent programming tasks. A fundamental concept in Erlang is the ''process''. Erlang processes are lightweight, isolated units of execution that share no memory. Concurrent processes communicate by message passing, which allows for easy coordination and synchronization. ==== Fault Tolerance ==== Erlang's design makes it particularly well-suited for building fault-tolerant systems. The language provides mechanisms for dealing with software failures, such as process isolation, supervised processes, and built-in error handling. These features enable the system to recover from errors without disrupting the overall operation. ==== Hot Code Upgrades ==== One of Erlang's distinctive features is the ability to perform hot code upgrades without stopping the system. This means that bug fixes, feature enhancements, or even entirely new functionality can be introduced in a running system without any downtime or interruption of service. ==== Distribution ==== Erlang is designed to support distributed computing. It provides built-in mechanisms for transparently communicating and coordinating processes across a network of nodes. This capability allows developers to build scalable, fault-tolerant systems that span multiple machines, enabling high availability and redundancy. === Elixir Integration === [[File:Elixir logo.png|thumb|upright|Elixir logo]] Elixir is a dynamic, functional programming language built on the Erlang Virtual Machine (BEAM). It leverages Erlang's capabilities while providing a more modern syntax and additional features. Elixir code can seamlessly call Erlang functions and access Erlang libraries. Elixir's integration with Erlang makes it an excellent choice for developers looking to build scalable, distributed systems while enjoying the productivity and expressiveness of a language with modern features and tooling. === Community and Ecosystem === The Erlang community is vibrant and active, with numerous user groups, conferences, and libraries dedicated to the language. A significant number of Erlang applications have been developed for industries such as telecom, banking, gaming, e-commerce, and IoT. The Erlang ecosystem consists of a broad range of libraries and frameworks, including: * ''OTP (Open Telecom Platform)'': A set of libraries and design principles for building reliable, fault-tolerant systems. * ''Cowboy'': A small, fast, and flexible HTTP server framework. * ''RabbitMQ'': A widely used message broker that implements the AMQP protocol. * ''Phoenix'': A powerful web framework for building scalable and real-time applications. === Conclusion === The Erlang Programming Language provides a unique set of features and capabilities that make it well-suited for developing concurrent, fault-tolerant, and distributed systems. Its integration with Elixir, along with an active community and rich ecosystem, solidifies Erlang's place as a reliable, battle-tested language for building robust applications. == References == {{reflist}} [[Category:Programming languages]] [[Category:Erlang programming language]]
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