The Operating System is a system software which, when loaded into computer, manages all the other programs of a computer. The other programs are called application programs.

Abbreviated as OS, Operating System is a powerful, large and important program. All the computers, laptops, tablet, desktop, smartphones work on operating system. Some examples include Microsoft Windows, Apple’s macOS, iOS, Linux, Chrome OS.

The smartphone which we use runs on either Apple’s iOS or Google’s Android Operating systems. An operating system is also used in larger systems like cars, traffic signals, ATM’s, aeroplane controls, point of sales (POS) terminals, elevators, digital cameras and others. The OS used is called – embedded operating systems.