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What is BIOS Basic Input Output System and what does work

You need to know about BIOS (Basic Input Output System). What is BIOS, how to use it, how it works.

What is BIOS (Basic Input Output System) and what does it work

What is BIOS

BIOS (Basic Input Output System) is a basic software of a computer without which it is not possible to start any computer. So if you do not know about BIOS, then read this article till the end, in which you will know what BIOS is (What is BIOS (Basic Input Output System) in Hindi) How it works.

What is BIOS (Basic Input Output System)

The BIOS (Basic Input Output System), which represents the basic input output system, is software stored on a small memory chip ROM on the motherboard. It is the BIOS responsible for POST (Power on Self Test) and therefore the BIOS is the first software to run POST when the computer is started.

The BIOS is pronounced as oss and is sometimes referred to as the system BIOS, ROM BIOS, or PC BIOS.

However, it is also incorrectly referred to as the original integrated operating system or underlying operating system.

The picture below is an example of what a BIOS chip might look like on a computer motherboard. The example diagram below is of an early AMIBIOS, a type of BIOS created by AMI.

AMIBIOS ROM chip

The BIOS contains instructions for loading basic computer hardware. It also includes a test referred to as POST (power-on self-test) that helps the computer meet the requirements to boot properly. If the computer does not pass the POST, you are prompted to indicate what is wrong with the computer.

What is the BIOS used for?

The BIOS instructs the computer how to perform basic tasks such as booting and keyboard control.

phoenix-bios-setup-utility bhm

BIOS is also used to identify and configure hardware such as hard drives, floppy drives, optical drives, CPUs, memory, and related devices in computers.

How to use BIOS. How to access BIOS

The BIOS is accessed and configured through the setup utility. All available options in the BIOS can be configured or accessed through the BIOS setup utility.

The BIOS cannot be downloaded and installed by downloading other software or operating systems such as Windows, the way the BIOS is installed on the computer. The BIOS is installed by the manufacturer in the ROM memory chip, the BIOS is installed from the moment the machine is made.
The BIOS setup utility is accessed in various ways depending on your computer or motherboard and model.

PC BIOS has four main functions.

  • POST – POST is a test that tests computer hardware to ensure that there are no errors before loading the operating system.
  • Bootstrap Loader – The operating system is detected. And if an enabled operating system is located, the BIOS will control it.
  • BIOS driver – low level drivers that give the computer basic operational control over your computer’s hardware.
  • BIOS Setup or CMOS Setup – Configuration program that allows you to configure hardware settings including system settings such as computer password, time, and date.
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Vikash Kumarhttps://bloghindime.com
I am the founder of this blog and a professional blogger. Here I regularly share useful and helpful information for my readers.

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