A PC’s BIOS, or Basic Input/Output System, is a firmware program that is stored on a chip on the motherboard. It is responsible for initializing the hardware on the computer and loading the operating system. The BIOS also provides a way for users to configure the hardware on their computer, such as the boot order, the amount of memory that is available to each device, and the date and time.
Here are some of the things that the BIOS does:
- It performs a Power-On Self Test (POST) to check the hardware on the computer for any errors.
- It loads the operating system from the hard drive or another storage device.
- It provides a way for users to configure the hardware on their computer.
- It allows users to enter the BIOS setup utility, which is used to change the BIOS settings.
The BIOS is a critical part of the computer’s operating system. Without the BIOS, the computer would not be able to start up or load the operating system.
You should only use the BIOS if you know what you are doing. Changing the BIOS settings incorrectly can cause the computer to not start up or to malfunction.
Here are some of the things that you can do in the BIOS setup utility:
- Change the boot order. This determines which device the computer will try to boot from first.
- Change the amount of memory that is available to each device. This can be useful if you are having problems with a device that is not getting enough memory.
- Set the date and time.
- Enable or disable certain features. For example, you can disable the on-board sound card if you are using a separate sound card.
If you are not sure what to do in the BIOS setup utility, it is best to leave the settings alone.