Beginner's guide

What Is a
Linux Operating System?

Linux is the free, secure and private operating system that quietly powers most of the internet — and it's ready for your desktop too. Here's what it is and how to start using it.

An operating system is the core software that makes your computer work — it manages your files, runs your apps and connects your hardware. Windows and macOS are operating systems, and so is Linux.

What makes Linux different is that it is free and open source: anyone can use, study and improve it. That openness is why Linux is trusted to run the majority of the world's websites, Android phones, and even the fastest supercomputers on Earth.

Kernel vs. distribution

Technically, "Linux" is the kernel — the engine at the centre of the system. To get a complete, usable computer you use a distribution (or "distro"), which wraps that engine in a desktop, apps and tools. Linux Lite is a distribution built specifically to be light, familiar and easy for newcomers.

Why Choose a Linux Operating System?

Light & Fast

Runs smoothly on old and low-spec hardware where Windows would crawl.

Secure & Private

Secure by design, rarely targeted by malware, and free of telemetry or forced accounts.

Free Forever

No licence, no subscription — for you and every computer you own.

Loads of Software

Thousands of free apps for web, office, media, photos and more.

Yours to Shape

Customise the look and behaviour to work exactly how you like.

Friendly Community

A welcoming forum and clear documentation to help you along.

Try a Linux OS for Yourself

Linux Lite is a free, beginner-friendly Linux operating system you can run live from a USB before you install. Give it a go.