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The BIOS Setup utility allows you to view information about various components on the computer and configure them. Some of the components include information about RAM, hard drive, optical, drive, and CPU. The most important things to know about the BIOS are its location on the motherboard, how the power supply is maintained for the motherboard, and how management/maintenance of the motherboard components is performed and how you can determine when it's necessary to perform. After the completing this lesson, you'll know the functions of the motherboard battery, how to locate & replace it when needed, what CMOS stands for and its function, how to locate the BIOS chip itself, and how it provides component information, and most importantly, "how to access it" which varies from one OEM computing system to another.