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  1. What is Linux? - Linux.com

    From smartphones to cars, supercomputers and home appliances, home desktops to enterprise servers, the Linux operating system is everywhere. Linux has been around since the mid-1990s and has …

  2. Linux - Wikipedia

    Linux is the predominant operating system for servers and is also used on all of the world's 500 fastest supercomputers. [g] When combined with Android, which uses a Linux-based kernel and is designed …

  3. What is Linux? - Red Hat

    Feb 5, 2026 · Linux® is an open source operating system (OS) created by Linus Torvalds in 1991. Today, it has a massive user base, and is used in the world’s 500 most powerful supercomputers.

  4. What is Linux? - Opensource.com

    Linux is the best-known and most-used open source operating system. As an operating system, Linux is software that sits underneath all of the other software on a computer, receiving requests from those …

  5. Introduction to Linux - GeeksforGeeks

    Feb 17, 2026 · Linux is a free, open-source operating system known for its flexibility, stability, and strong security. It is widely used in personal computing, server environments, and enterprise systems …

  6. Linux | Definition & Facts | Britannica

    Mar 1, 2026 · Linux, computer operating system created in the early 1990s by Finnish software engineer Linus Torvalds and the Free Software Foundation. Because it is open-source, and thus modifiable for …

  7. What is Linux Operating System? Introduction to Linux OS - Guru99

    Jun 22, 2024 · What is Linux? LINUX is an operating system or a kernel distributed under an open-source license. Its functionality list is quite like UNIX. The kernel is a program at the heart of the …

  8. What Is Linux? Commands Glossary and FAQ - Coursera

    Nov 4, 2025 · A Linux-based operating system consists of three main parts: the kernel, shell, and programs. In the following sections, we’ll provide a brief overview of each one.

  9. What is Linux? A Complete Guide - The Knowledge Academy

    Nov 11, 2025 · Linux is an open-source Operating System (OS) that functions as the fundamental software on a computer for managing hardware resources and providing services for applications.

  10. What is Linux? {Understanding Linux Operating System} - phoenixNAP

    Jun 15, 2023 · Linux is the most popular operating system today, next to Windows and MacOS. This open-source system is free and has a long-standing history of reliability, security, and flexibility.