What is BIOS? (Complete Information)
What is BIOS - BIOS is an important device in any computer, which is used in almost every computer.
The screen that appears in front of you as soon as you start the computer is possible only because of the BIOS. Its function is to start any computer.
The main function of BIOS is to properly check the settings of the computer, with the help of which BIOS is able to find out whether the computer is working properly or not.
The work of BIOS starts as soon as our computer starts, its job is to maintain the communication of the computer so that all the components can work together smoothly.
So, this was a piece of basic information about BIOS, if you want to know about it in detail then you keep reading this article further because in today's article, we will know in detail what is BIOS? How many types of BIOS are there? What are its functions and how does it work?
What is BIOS?
BIOS is a program that starts working as soon as our computer starts. The full name of BIOS is Basic Input Output System. All the components of the computer work only with the help of BIOS. If we understand it in simple language, then with the help of BIOS our system can understand any input and output system like monitor, keyboard, processor and RAM, etc.
BIOS is an important part of any computer. Whose function is to start any computer.
Whenever you start a computer or laptop, the screen that appears in front of you is possible only because of the BIOS.
It is connected to the motherboard of the computer, and whenever you start the computer, it starts working.
On turning on any computer, BIOS starts working on the RAM of the computer and identifies and configures the RAM, keyboard, hard disk, processor, etc. under the computer.
BIOS is located in the ROM memory of any computer and identifies different hardware within that computer.
The main function of BIOS is to boot any computer operating system, to put it in simple words, the function of BIOS is to start any computer operating system.
How does BIOS work?
Whenever you turn on your computer, the BIOS checks your CMOS settings, then it decides which device to port the system to, then it calls your operating system and your computer. Is started, and you can use the computer with it.
So here the entire functioning of BIOS is like this and its job is only to start the computer or boot the computer.
How many types of BIOS are there?
There are mainly 2 types of BIOS which are as follows -
UEFI – The full form of UEFI is Unified Extensible Firmware Interface which supports drives of size 2.2TB or more than 2.2TB. It uses the new GPT instead of the old MBR (Master Boot Record).
Legacy BIOS – We see this type of BIOS in old motherboards. Legacy BIOS was used in older motherboards to turn on the PC. This type of BIOS does not support drives larger than 2.1TB.
Functions of BIOS
The main functions of BIOS in any computer are as follows-
1) Checking BIOS setting
The most important and first function of BIOS is to check the settings of BIOS. When your computer starts, the BIOS checks all the settings under CMOS. All these settings are checked by the BIOS so that your computer can work properly.
2) Loading drivers under the computer
Loading drivers under the computer is also a very important function of BIOS, in which after the computer starts, all the drivers are loaded into your computer through the BIOS itself, and after that, all the functions start working in your computer. And you can use them.
3) Initializing computer registers
Initializing the computer register is also a very important function of BIOS in any computer. BIOS does this work after loading all the drivers under your computer so that you can use the computer properly. Under this, BIOS ensures that all the files registered under your CPU are working properly or not.
4) Power On Self Test
BIOS also performs a Power-on self-test when any computer starts, under which it tests all the hardware present in your computer, this is also called POST.
5) Setup BIOS
Whenever we press a special key while starting our computer, all the settings open in front of us, this is also called BIOS setting. The work of opening all these settings is done by BIOS only.
Apart from this, BIOS has many different functions. The main function of BIOS in any computer is to start that computer and complete all the processes behind it. BIOS is a very important device or software within any computer, and without it, it is not possible to boot any computer.
How to turn on BIOS settings?
To access BIOS you must first restart your computer, as soon as you restart your computer. As soon as the computer screen comes on in front of you after restarting the computer, you can press any keyboard shortcut key of your computer like Delete, ESC and F2, etc. As soon as you press any keyboard button, the BIOS setting will be turned on in front of you. In this way, you can easily turn on the BIOS settings.
How to reset bios?
If you are facing any problem in your computer or you want to restore the settings of your computer by default and you want to reset the BIOS for this, then you can reset the BIOS by following the following steps.
- To reset the BIOS, first of all, press and hold the power button of your computer for 10 seconds, until your computer turns off.
- After the computer is turned off, turn it on again, as soon as your computer turns on, that is, as soon as the screen of your computer turns on, you have to turn on the BIOS setting of your computer.
- To turn on the BIOS setting, you can press any key like ESC, Delete, etc. in your computer.
- As soon as you press any key, your computer's BIOS setting will turn on. Here you have to click on Restore Defaults and then save all your settings by pressing the F10 key and press Enter to exit the BIOS settings.
How to update BIOS?
Updating the BIOS version is a critical process. Due to your smallest mistake, your computer can become unbootable in a few minutes. Therefore, you should update it only when necessary.
- To update Bios, first of all, you have to press the Win + R key, and as soon as you type Msinfo32 in the search bar, a new screen opens in front of you where you will see the BIOS Version.
- Now you will see the name of the Computer Manufacturer along with that BIOS version. Now you have to go to the official website of that computer manufacturer and download and update the BIOS version there.
How to turn on the BIOS version in Windows 10 & 11?
To check the BIOS version in Windows 10, follow the following points.
- To check the BIOS version in Windows 10, first of all, you have to press the Win + R key in your Windows computer.
- As soon as you press the Win + R key, a popup search bar will appear in front of you, where you have to type Msinfo32 and enter. As soon as you enter, the BIOS version will appear in front of you.
FAQ – Frequently Asked Question
What is the full form of BIOS?
The full form of BIOS is the Basic Input Output System.
What is BIOS in one word?
BIOS is an important part of the computer whose function is to start any computer. Whenever you start the computer, it starts working. The main function of BIOS is to boot the computer operating system.
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