Question

what is an operating system?briefly explain its any two funcation
​

Answer 1

An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs.

Functions:

(1) manage the computer's resources, such as the central processing unit, memory, disk drives, and printers.

(2) establish a user interface.

(3) execute and provide services for applications software.

Answer 2

Answer:

An operating system (OS), in its most general sense, is software that allows a user to run other applications on a computing device. ... The operating system manages a computer's hardware resources, including: Input devices such as a keyboard and mouse.