An operating system is the most important software that runs on a computer. It manages the computer's memory and processes, as well as all of its software and hardware.It communicates with the hardware and allows other programs to run. It is comprised of system software, or the fundamental files your computer needs to boot up and function. Every desktop computer, tablet, and smartphone includes an operating system that provides basic functionality for the device.

Windows, Android, Linux, macOS, FreeBSD. Windows is a series of operating systems, computer operating system developed by Microsoft for personal computer. Windows comes with a graphical user interface (GUI) with a desktop that allows a user to view all files, videos, etc. Linux is open source operating system whereas Windows is commercial.