What is BIOS?


The BIOS stands for Basic Input Output System. The BIOS is a set of instruction built into our computer to control how information and data flow in and out of our system.

Some of the other common tasks that the BIOS Performs include:

a) A power on self test for the entire different hardware component in the system to make sure everything is working properly.

b) Activating other BIOS chip on different cards installed in the computer.

c) Managing a collection of setting for the hard disk, clock etc.

Concepts of BIOS

The BIOS supports all peripheral technology including hard disk drive as well as internal services. There are two concepts of BIOS:

1) BIOS Power on self test (POST)

The power on self test is a built in diagnostic program that checks PC hardware to ensure that everything is present and functioning properly. The most important job of BIOS is to give the micro processor its first instruction and to load operating system on. It then performed a post.

2) BIOS setup utility

BIOS setup utility enables the user to modify the PC settings and store than in the CMOS. This utility also enables to control the booting sequence. It can be used to change the BIOS to connect any hardware problem such as floppy disk drive error etc.



9 views

Recent Posts

See All

What is internet?

Internet is network of networks. In order to send and or receive any kind of information via internet then sender and receivers in anywhere in the world should be connect internet via dedicated router

What is an electronic mail?

Electronic mail is known as e-mail. E-mail is a simple ways to send and receive a message or letter from one person to other person. With the help of e-mail we can send a letter anywhere in the world