Tuesday, June 16, 2020

What is BIOS

What Is BIOS In System

BIOS stand for  Basic Input Output System

Bios it an essential set of program's (Routines) stored on a chip on the mother of the Computer.

It acts as an intermediate between a computer hardware and operating system, without bios the computer operating system cannot communicate with it, and also manage INPUT/OUTPUT devices Ex:- attach Hard-Disk , Key Board, Mouse etc.

4 Function of BIOS 



  • POST - Power On Self Test
  • Bootstrap Loader
  • BIOS Setup Utility Program
  • BIOS Driver
 BIOS Driver

EEPROM - Electric Error Program Read Only Memory
EPROM - Erasable Program Read Only Memory 



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