Linux is a free and open-source operating system originally developed by Linus Torvalds. It is similar to the Unix operating system and serves as the foundation for a wide range of distributions, such as Ubuntu, Red Hat, SuSE, CentOS, and Raspbian, among many others. These distributions combine the Linux kernel with additional software to cater to different user needs, from general-purpose desktops to specialized server and embedded applications.
Widely recognized for its stability, flexibility, and security, Linux has become a preferred choice for a variety of uses. Its robust architecture makes it suitable for running servers, desktops, and supercomputers, as well as powering embedded systems like IoT devices. The open-source nature of Linux allows developers and users to customize and optimize the system to meet specific requirements, contributing to its popularity and versatility across industries.