Erlang is a functional, concurrent programming language and runtime environment designed for building highly scalable, fault-tolerant systems. Originally developed for telecom infrastructure, Erlang is ideal for real-time applications, distributed computing, and services requiring high availability. It powers systems where uptime and performance are mission-critical.

Features of Erlang:

• Lightweight concurrency using the actor model with isolated processes.
• Built-in support for distributed systems and message-passing communication.
• Hot code swapping for updates without system downtime.
• Runs on the BEAM virtual machine, designed for high availability and low latency.
• Ideal for telecom, messaging systems, IoT, and fault-tolerant backends.

To check the Erlang version on your system, run:

erl 

Disclaimer: Erlang is open-source software released under the Apache License 2.0. While it is designed for reliability and scalability, it is provided "as is" without warranties or guarantees. Proper setup, testing, and monitoring are essential when deploying Erlang in production environments.