
Basic Input Output System is known as a BIOS. The BIOS is a small program which pre-loaded on the computer systems having Window as an operating system.
The BIOS is the first program installed onto the computer system even before the operating system. BIOS is simply used to start the computer system.
CPU access the BIOS to locate all Input and Output devices when we start the computer system and ensure that all hardware connections are properly functioning or not.
BIOS loads the operating systems into the computer memory, thus making the process of booting.
As the BIOS was installed in the computer at the time of computer configuration, a computer user recommended to not do any changes in the BIOS.
POST
BOOTING
BIOS DRIVERS
BIOS SETUP