Introduction – What is the Linux Operating System?
In our series of explaining tech and computer terms in a short, easy and accessible way, let us turn to Linux. Linux is a well-loved open-source operating system that many outside the world of computer geekery might not know about. As of 2025, it holds about 4.7% of the global computer market share.
“Linux is powerful, flexible, and free—making it an ideal choice for servers, desktops, and embedded systems.” — Bruce Perens.
Linux is a powerful and versatile open-source operating system that has revolutionised the world of computing. It is widely used in servers, desktops, embedded systems, and even mobile devices. But what exactly is Linux, and why is it so popular?
Understanding the Basics
At its core, Linux is an operating system, which means it manages hardware resources and provides a platform for applications to run. It acts as a bridge between the computer hardware and the software applications that users interact with daily.
Open-Source Nature
One of Linux’s defining features is its open-source nature. This means its source code is freely available for anyone to view, modify, and distribute. This openness fosters a collaborative development environment, leading to rapid improvements, customisation, and a wide range of distributions tailored to specific needs.
Components of Linux
Linux comprises several essential components:
- Kernel: The heart of Linux, responsible for managing hardware, system resources, and communication between hardware and software.
- Shell: A command-line interface that allows users to interact with the system using text commands.
- File System: Organises data and files in a hierarchical structure.
- Applications: Various programs and tools that run on Linux, from web browsers to development environments.
Linux Distributions
Linux is not a single monolithic operating system but a family of distributions (distros). Each distro offers a different user experience, package management system, and set of pre-installed software. Popular Linux distributions include Ubuntu, Fedora, Debian, CentOS, and Arch Linux.
Advantages of Linux
- Free and Open Source: No licensing costs, with access to source code.
- Security: Generally considered more secure due to its architecture and active community.
- Customisation: Users can modify and tailor the OS to their needs.
- Stability and Performance: Known for its reliability and efficiency, especially in server environments.
- Community Support: Large and active community offering support, tutorials, and resources.
Uses of Linux
Linux’s flexibility makes it suitable for various purposes:
- Servers: Dominates web hosting and enterprise servers.
- Desktops: Used by individual users and developers.
- Embedded Systems: Power devices such as routers, smart TVs, and IoT devices.
- Supercomputers: Most of the world’s top supercomputers run on Linux.
Conclusion
Linux is a robust, secure, and customizable operating system that continues to grow in popularity across different domains. Its open-source nature encourages innovation and collaboration, making it an essential part of modern computing infrastructure.
trabantbettina
Bettina Anna Trabant, Founder of Life Organised, your professional organising and decluttering service in East London. Eco-conscious minimalist and avid tea drinker,
