Operating System

Introduction

An operating system acts as an intermediary between the user of a computer and computer hardware. The purpose of an operating system is to provide an environment in which a user can execute programs in a convenient and efficient manner.


Defination:
  • An operating system is a program that controls the execution of application programs and acts as an interface between the user of a computer and the computer hardware.
  • A more common definition is that the operating system is the one program running at all times on the computer (usually called the kernel), with all else being application programs.
  • An operating system is concerned with the allocation of resources and services, such as memory, processors, devices, and information. The operating system correspondingly includes programs to manage these resources, such as a traffic controller, a scheduler, memory management module, I/O programs, and a file system.

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