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The system BIOS is the lowest-level software in the computer which acts as an interface between the hardware (especially the chipset and processor) and the operating system. The BIOS provides access to the system hardware and enables the creation of the higher-level operating systems that are used to run applications. The BIOS is also responsible for allowing control to computer's hardware settings, for booting up the machine when you turn on the power or hit the reset button, and various other system functions.
The settings mentioned in these lessons are only a small listing of a plethora of options that you may find in your BIOS. Since the options found in the setup utility differ from one motherboard manufacturer to another, only the most commonly found settings have been discussed in this module.
Always keep in mind that the BIOS is like the nerve center of the computer system. Any careless tweaking with the settings can prove fatal for the computer. It is always a good idea to have an expert do the changes, while you watch on or leave the factory defaults intact.
