Linux is a free and open-source operating system kernel. It is the core of an operating system that manages the hardware and software resources of a computer.
Linux was originally developed as a free operating system for personal computers, but it has since been adapted for use on a wide range of devices, including servers, smartphones, and embedded systems.
One of the key features of Linux is its flexibility. It can be customized and modified to suit the needs of a wide range of users and applications. Linux is also highly reliable and secure, making it a popular choice for mission-critical systems.
Linux is developed and maintained by a global community of volunteers, with the source code available for anyone to review and modify. This collaborative approach has resulted in a large number of Linux distributions, or versions of Linux that have been customized for specific purposes or user groups. Some of the most popular Linux distributions include Ubuntu, Fedora, and CentOS.