Erlang

Erlang is a functional, concurrent programming language designed for building scalable, distributed, and fault-tolerant systems. Originally developed by Ericsson for telecommunications, it is now widely used in industries requiring high availability, such as finance, messaging, and real-time data processing. Erlang's lightweight processes and message-passing architecture make it ideal for handling thousands of simultaneous connections with minimal latency.

Key Features of Erlang

• Concurrency & Parallel Processing: Erlang uses the Actor model, allowing thousands of lightweight processes to run simultaneously without performance degradation.

• Fault Tolerance & Self-Healing: Designed for robust systems, Erlang can detect failures and restart processes without crashing the entire application.

• Hot Code Swapping: Supports live updates, enabling developers to deploy changes without restarting or disrupting the system.

• Distributed Computing: Built-in support for multi-node systems ensures seamless scalability.

• Functional Programming Paradigm: Simplifies code maintainability, reducing bugs and increasing efficiency.

Best Use Cases for Erlang

✔️ Real-time messaging apps: Used in WhatsApp, WeChat, and Signal for efficient data transmission.
✔️ Telecommunications systems: Powering VoIP services, call routing, and network management.
✔️ Distributed databases: Implemented in scalable storage solutions like CouchDB and Riak.
✔️ Financial trading platforms: Used in high-frequency trading systems requiring ultra-low latency.
✔️ IoT & embedded systems: Handles concurrent device communication and real-time processing.