What does updating the bios do
More specifically, it enables you to use the keyboard, see a display on the monitor, access the hard drive or CD drive, etc., all without the need for an operating system.
The BIOS is the software that carries you from the moment you power on your computer to the point where the operating system begins to load, providing the instructions necessary to access the hard disk, memory and other hardware.
In this article PCstats will describe some of the methods you can use to upgrade your computer's BIOS, and explain what a BIOS is, and does.
The task involved downloading the correct BIOS file, the proper CMOS chip flashing software, rebooting the PC into DOS mode, applying the correct commands and then waiting in suspense until the update finished.This is why you can restore your BIOS to its default settings simply by removing the motherboard battery for a few minutes. The motherboard manufacturer provides a file which will overwrite the default file on the CMOS chip itself, providing the motherboard with a new or updated set of controls.Need to find or check the current BIOS version on your laptop or desktop computer?This is a very simplistic definition though, as the BIOS has many more functions.All the hardware attached to the motherboard, such as the memory, processor, video card and disk drives, can be configured to a greater or lesser degree through the BIOS.