What is BIOS? Its History and Function Explained (2022)

Today’s time is for computers. If we look around us, almost all the work is done by the computer. A computer is a system consisting of hardware and software. All hardware and software have their own special function.

As we have also told you in previous articles related to computers, hardware is the body of the computer and these lifeless bodies work to inject life into the various software of the computer.

There are many types of software in the computer that make it easy for the user to work on the computer. But there are also some software without which a computer cannot do its job, such as an operating system.

We’ve told you about the operating system in the previous article. Through today’s article we will learn what is BIOS, BIOS Full Form in Hindi, what is the function of BIOS in computer. How to access the BIOS, how to update the BIOS, and how to reset the BIOS.

If you want to find out about the BIOS, then read this article to the full end. So let’s start by not taking too much of your time to this article and know what a BIOS is in detail.

What is BIOS ?

Bios is a software program present in a computer. It is an important program of the computer and the BIOS comes in handy when the computer starts. When the computer starts, the first program that runs in the operating system at the very beginning is the BIOS.

The BIOS is called the Basic Input Output System, which configures or starts the fundamental activities of our computer, the output device and the input device, and the basic component. The BIOS remains connected with the motherboard and remains stored in the ROM.

The BIOS is already installed in all computers. All programs in the CPU can be installed only after the BIOS. The BIOS contains the code necessary to control the computer’s input, output device, and critical components.

History of BIOS

The first person to introduce the BIOS to the world was Gary Kildall who developed the BIOS in 1975. Gary Kildall was an American computer scientist. At that time cp/m (control program/ Monitor) The BIOS was included in the operating system.

Soon, it became part of the personal computer and the BIOS became very popular with the advent of Microsoft’s Disk Operating System (DOC). In 1981, the BIOS was part of IBM’s first PC. Very soon bios became a major part of PC.

Function of BIOS

When we install the computer there are a lot of functions of the BIOS which we have further told you about –

  1. The BIOS reads and checks all the settings of cmos so that everything works correctly.
  2. The BIOS then loads all the drivers, so that the operating system and the connect device can communicate with each other.
  3. After this, the BIOS prepares all the registers of the CPU to be used well.
  4. After preparing the registers, the BIOS performs the POST (Power on Self Test). In the process of
  5. POST, bios tests all the hardware such as keyboard, mouse, monitor, etc.
  6. After processing the POST, the BIOS decides which devices can be booted, reads it and loads the required files into RAM. Thus our computer is on.

Where the BIOS is stored in the computer ?

The BIOS is stored in an electronic chip in the motherboard and this electronic chip is called CMOS (Complementary Metal Oxide Semiconductor). CMOS stores the entire BIOS setting.

The CMOS chip gets power from the battery. And when the battery is removed and re-installed, all settings of CMOS are defaulted. Cmos protects all settings in the BIOS when we make a change to the computer’s settings.

A CMOS chip is a non-volatile ROM, but this ROM is an EEPROM, which is why we can update and write the setting of the BIOS.

How to Access BIOS ?

To access the BIOS, when you turn on your computer, you have to immediately press any of the keys in the keyboard, F2, F12, Esc, or Delete from the keyboard as soon as you turn on. Your BIOS setting opens as soon as you press the key. From here you can see the setting of your BIOS and also make changes to it.

If your computer is on, then you restart the computer and press the key, then your BIOS setting will be open. To access the BIOS Settings, you need to make sure that you press the key before the Windows logo appears. You can exit the BIOS setting by pressing the F10 key.

The key of the BIOS in the PC varies depending on the manufacturer companies.

How to Update BIOS ?

If your computer is unable to use all the features of the hardware and software, you need to update the BIOS. After updating the latest version of the BIOS, some additional functions are also added to it so that all errors and bugs are also removed.

It is also necessary to check which version of your BIOS is in Windows before updating the BIOS. For this, follow the steps below.

  1. Press Window and R after the PC is on.
  2. Type Msinfo32 in the search bar and press the Enter key.
  3. Now the system information window will be opened in front of you, from here you can see the current version of the BIOS in your PC.

Update bios from the official website of the manufacturer companies

After you find out the version of the BIOS in your PC, you need to find out if an updated version of the BIOS is available. For this, go to the official website of your PC manufacturer company and download the updated file of the BIOS from here.

If your PC is not branded, you can also download the updated file of the size BIOS on your motherboard manufacturer’s official website.

To update the BIOS, exit all programs and run the file. When it is installed, your PC will reboot and update the BIOS.

How to Reset BIOS ?

If your PC is experiencing a problem of booting, you can reset the BIOS setting and set it to default. For this, you should follow the following step.

  1. First, press the power button and turn the PC off completely.
  2. Now restart the PC and press the key to access the BIOS.
  3. Click the option with Setup Default.
  4. Press F10 and press the Enter key to save changes. And exit the BIOS Setting.
  5. This way you can reset the BIOS and set it to Default.

After reading this article, you must have understood very well what is bios & its functions. To conclude the article then the BIOS is an integral software of the computer without which the computer cannot start. The BIOS connects the basic component of the computer. Only after the BIOS is run, all other programs on the computer run in the operating system.

Write a Comment