What is Linux?
The short version: it's a free operating system that runs on almost everything.
The basics
Linux is an operating system -- the software that makes your computer work. It's the same kind of thing as Windows or macOS, but with some key differences:
- It's free. Completely free. No license fees, no activation keys, no subscriptions.
- It's open source. Anyone can see how it works, modify it, and share it.
- It comes in many flavors. These are called "distributions" or "distros." Each one is a different version of Linux built for different needs.
Why do people use it?
It's free -- really free
No purchase price. No yearly subscription. No "your license has expired" popups. You download it, install it, and use it forever. Updates are free too.
This isn't "free with ads" or "free trial." It's genuinely, completely free. The people who build it do it because they believe software should be accessible to everyone.
It respects your privacy
Linux doesn't track what you do. There's no telemetry phoning home to a corporation. No targeted ads built into your start menu. No forced Microsoft account sign-in.
Your computer is your computer. Linux treats it that way.
It's fast and lightweight
Linux can breathe new life into old hardware. A 10-year-old laptop that struggles with Windows 11 can run Linux smoothly. Some distros are designed specifically for older machines and can run well with just 1-2 GB of RAM.
Even on modern hardware, Linux tends to feel snappier because it's not running dozens of background services you didn't ask for.
It's secure
Linux has far fewer viruses and malware than Windows. The permission system is stricter by default, software comes from trusted repositories (not random websites), and updates are fast and don't require restarts in the middle of your work.
This doesn't mean Linux is invincible -- no OS is -- but it's significantly more secure out of the box.
You control everything
Don't like the desktop? Change it. Don't like the file manager? Swap it. Want your computer to look like macOS, Windows 95, or something completely unique? You can do that.
Linux doesn't force you into one way of doing things. You choose your desktop environment, your apps, your update schedule, everything.
It's great for learning
Using Linux teaches you how computers actually work. You'll learn about file systems, permissions, networking, and the command line -- skills that are valuable whether you're a developer, sysadmin, or just someone who likes understanding their tools.
The Linux community also tends to explain why things work, not just how. You'll learn more than you expected.
What's a "distro"?
Linux itself is just the kernel -- the core engine that talks to your hardware. A distribution (distro) packages that kernel with everything else you need: a desktop, apps, a way to install software, and settings that make it all work together.
Think of it like this: the Linux kernel is an engine. A distro is the complete car -- engine plus body, wheels, interior, and paint job. Different distros are like different car models, all using the same engine but offering different experiences.
There are hundreds of distros, but you only need to know about a handful. Here are the most popular ones:
- Ubuntu -- The most popular. Huge community, tons of support. Great first choice.
- Linux Mint -- Feels like Windows. Perfect for people switching from Windows.
- Fedora -- Always has the latest stuff. Popular with developers.
- Pop!_OS -- Great for gaming and NVIDIA graphics cards.
- Arch Linux -- Build your system from scratch. For people who want total control.
Not sure which one? Take the quiz
Can I try it without installing?
Yes! Every major distro lets you boot from a USB drive and try it without changing anything on your computer. This is called a "live USB." Your hard drive stays untouched -- you're running the entire operating system from the USB stick.
You can also run Linux inside a virtual machine (like VirtualBox) to test it inside your current OS. It runs in a window just like any other app.
What about my apps?
Web browser
Chrome, Firefox, Brave, and Edge all run natively on Linux. Your bookmarks, extensions, and settings sync across platforms.
Office (Word, Excel, PowerPoint)
LibreOffice is a free office suite that opens and saves Microsoft Office files. It's not identical to MS Office, but it handles most documents just fine. You can also use Microsoft Office online (office.com) in your browser, or Google Docs.
Gaming
Steam runs on Linux. Most Steam games work through Proton, a compatibility layer that runs Windows games on Linux. Check ProtonDB to see if your games work.
Minecraft, Lutris (for non-Steam games), and emulators all work great too.
Creative software (Photoshop, Premiere, etc.)
This is the weakest area. Adobe apps don't run on Linux. Alternatives exist:
- GIMP -- Image editing (Photoshop alternative)
- Kdenlive / DaVinci Resolve -- Video editing
- Inkscape -- Vector graphics (Illustrator alternative)
- Blender -- 3D modeling (runs natively, used professionally)
- OBS Studio -- Screen recording and streaming
If you absolutely need Adobe, consider dual-booting (keeping Windows alongside Linux).
Communication (Discord, Slack, Zoom, Teams)
Discord, Slack, Zoom, and Teams all have native Linux apps. Spotify does too. Most modern communication tools support Linux.
A brief history
In 1991, a Finnish computer science student named Linus Torvalds started building a free operating system kernel as a hobby project. He posted it online and invited others to contribute. That kernel became Linux.
Today, Linux is developed by thousands of contributors worldwide, including engineers from companies like Google, Microsoft, Red Hat, Intel, and Meta. It's the foundation of Android, Chrome OS, most cloud infrastructure, and the majority of the world's supercomputers.
What started as one student's hobby project now runs most of the internet.