BIOS : Full Explanation

Introduction :

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What Is BIOS :

BIOS is the short form of basic input output system , the built in software that determines that a computer can do without accessing programs from a disk . On personal Computers for example the bios contains all the codes required to control the keyboard, display screen , disk drivers , serial communications and a number of miscellaneous functions . BIOS (Basic Input Output System) is the program a personal computer's microprocessors uses to get data from the computer system started after you turn it on . BIOS is an integral part of your computer and comes with it when you bring it home . BIOS is a program that is made accesible to the microprocessors on an erasable programmable read only memory (EPROM) Chip . When You Turn on your computer , the microprocessors passes the control to the BIOS program . Which Is always located at the same place on EPROM (erasable programmable read only memory) chip . BIOS mainly controls the flow between the computer operating system and attached device such as the hard disk , video adapter , keyboard , mouse and printer etc When BIOS starts (boots up) your computer , it first check whether all the attachements are in place and operational and then it loads the operating system into your computer RAM from hard disk or diskette drive .

specifications of BIOS :

BIOS stands For
BASIC INPUT OUTPUT SYSTEM
software stored on a small memory chip on the motherboard .
BIOS firmware is non volatile , meaning that its settings are saved and recoverable even after power has been removed from device .
BIOS is responsible for the post and therefore makes it the very first software to run when a computer is started .
BIOS instructed the computer on how to perform a number of basic functions such as booting and keyboard control .
BIOS is accessed and configured through the BIOS Setup Utility.
BIOS is also used to identify and configure the hardware in a computer such as the hard drive , floppy drive , optical drive , CPU memory , etc
Unlike an computer system and operating system like Windows , which is often downloaded or obtained on a disc , and needs to be installed by the user or manufacturer , BIOS is pre-installed when the computer is purchased .
all modern computers motherboards contains BIOS Software .

Short Notes Of BIOS :

BIOS access and configure on pc system is independent of any computer system because the BIOS is part of the motherboard hardware . BIOS is a program pre - installed on the windows based computers that are used for at the computer startup . CPU access the BIOS even before the operating system is loaded , then the BIOS checks all the hardwares connections and locates all of the devices at one time . IF everything is OK , the BIOS loads the operating system into the computers memory and finishes the boot - up process . Since , the BIOS manages the hard drives , it can resides on one , and since it is available before the computer boots up . it can't live in The Ram (Random Access Memory) . It is Located in the Rom (Read only memory) EPROM Chip . As soon as you turn your computer on the , CPU access the EPROM and Gives Control To The BIOS . Acts AS An Immediately between the CPU and The Input And Output Devices . BIOS is also Used For After The Computer Has Booted Up .

More Informations About BIOS :

As we also know detailed about BIOS so we also now understand about BIOS so at conclusion BIOS stands For Basic Input Output System , And the BIOS is an essential part for our computer system because it not only checks our computer system otherwise it also control at the high level of setup before our computer boots up in this article BOOTING OR BOOTS UP come again and again do you know the meanings of its if no Dont's Worry because i tell the meaning of boot

Boot is also defined as when we on our computer system then the time which is taken by a computer system to turn on completely that is called Booting And That process is called Boots Up or Boot .

After that i am confirmed that you know all about BOOTS UP , BOOTING so after that come on the topic of BIOS lets Get started that after understand the process of booting we can easily understand that When Our Computer Started Booting Process then BIOS software or program be active and that time BIOS checks all the errors and specifications of CPU RAM and ROM and that time if any errors be founded like as mouse , keyboard , display panel etc then it informs the user to resolve all the errors And if everything thing is fine it loads the operating system correctly . After that BIOS is an essential Software program for our computer system .

What Happens If BIOS Software Is Not available In Our computer system :

First Of All , BIOS software is not available in your computer system that is impossible because in modern technology without BIOS no computer system be manufactured because BIOS is an essential Part For Computer System that can be understands that BIOS is the Backbone Of Computer System . All the errors are only checked by BIOS Software At The Time Of Booting .
in any case if BIOS is unavailable in Computer System Our Computer System Does Not Work Or Does Not Operates Clearly without BIOS we can not loads the operating system into the computer system into the computers memory and finishes the boot process .