Popular Operating Systems
A few operating-system families run the overwhelming majority of the world's devices, from data-center servers to the phone in your pocket.
Windows
Microsoft's desktop OS dominates personal and business computers. It is known for broad hardware and software compatibility.
macOS
Apple's desktop system is built on a Unix foundation and is tightly integrated with Apple hardware and the wider Apple ecosystem.
Linux
A free, open-source kernel paired with many distributions. It powers most web servers, supercomputers, and cloud infrastructure.
Android
Built on the Linux kernel, Android is the most widely used mobile operating system in the world.