BIOS is to some initialisation of the hardware, and then to begin the process of loading the operating system.

The BIOS's primary function is to handle the system setup process including driver loading and operating system booting.Ensuring that the operating system is correctly loaded into memory

The BIOS is the Basic Input output of the system that handle the system setup process including driver loading and operating system booting.

BIOS set up computer and boot the operating system.

BIOS handle system set up process including driver loading and operating system booting.

BIOS enables computers to perform certain operations as soon as they are turned on. The principal job of a computer's BIOS is to govern the early stages of the startup process, ensuring that the operating system is correctly loaded into memory.

The BIOS primary function is to check all the hardware that the hardware is in working condition and  the system setup process including driver loading and operating system booting.

Is used to make interaction between user and system