Operating system (OS)

An operating system (OS) is software that supports a computer’s basic functions, such as executing applications, controlling peripherals, and scheduling tasks. The most well-known operating systems are Microsoft Windows, Linux, Apple macOS and iOS, Android, and Google’s Chrome OS.

Cybersecurity info you can't do without

Want to stay informed on the latest news in cybersecurity? Sign up for our newsletter and learn how to protect your computer from threats.

Select your language