Operating System - Introduction

An operating System (OS) is an intermediary between users and computer hardware. It provides users an environment in which a user can execute programs conveniently and efficiently.

In technical terms, It is a software which manages hardware. An operating System controls the allocation of resources and services such as memory, processors, devices and information.

Definition:

An operating system is a program that acts as an interface between the user and the computer hardware and controls the execution of all kinds of programs.

 

Following are some of important functions of an operating System.

• Memory Management
• Processor Management
• Device Management
• File Management
• Security