What is Opreating System?

OPERATING SYSTEM SOFT WARE:
An operating system is a special kind of software that behaves as an interface between user and computer. The software that enables communication between user and computer and controls all the internal functions of the computer is called Operating System.
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An integrated set of computer programs that is used to manage the various resources and overall operations of computer system.
OR
A computer is digital electronic device. Hence to perform various operations and commands there is a need to have an organized set of instructions that may control the overall operations of the computer, and can translate the user given commands into machine understandable form. the kind of software that provides a link, between user and computer is known as Operating System.
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As soon as,BIOS finishes its task of Booting, it automatically switches control to another special piece of software, which is usually placed on the the computer's hard disk, floppy disk or CD. This most essential piece of software is called Operating System.