What is a bios?

BIOS (Basic Input / Output System) - basicI / O system. After pressing the power button, the BIOS is started first, and then the operating system is booted. The BIOS load process lasts less than 1 second.

Without BIOS, the computer would not work. Why? Consider what BIOS is and why it is needed.

BIOS Definition

BIOS - a set of instructions (program) writtenon a microcircuit. The BIOS is located directly on the motherboard, connected to the battery for permanent operation. In connection with this, the BIOS is ROM - a permanent storage device that does not depend on external power.

BIOS Assignment

  • BIOS determines where it will boot fromOperating system and with what parameters the computer will work. For example, the operating system, when installing or downloading, takes information from the BIOS about the current date and time, the source of the boot - hard disk, flash drive or other device.
  • In addition, the BIOS includes other parameters that affect the operation of the computer as a whole. For example, it is possible to improve the performance of your computer.
  • It is also important to note that before the OS bootsPOST-test is performed - self-testing of computer hardware devices. And if there are any mistakes, then before you start working at the computer, you can learn about them and try to eliminate them.

How to get into BIOS settings

To get into the BIOS settings, you need toinitial initialization, press Del, F1, F2 or ESC - depending on your motherboard and BIOS. As a rule, an inscription appears on the screen, showing how to enter the BIOS. For example, Press Del to enter SETUP.

We strongly recommend not making any settingsin the BIOS, if not sure about their actions. On how to "overclock" the computer, update the BIOS or make any other settings, read in our articles from the section BIOS.

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