BIOS and the BIOS Setup Program

The BIOS setup program is stored in the system ROM chip. It varies greatly from computer to computer. Today's BIOS setup programs include many options. To organize them, they are often grouped together. Most BIOS setup programs are menu based, including standard CMOS setup, advanced chipset setup, power management, PCI configuration, and peripheral configuration.

The standard CMOS setup includes the information for the date, time, floppy drives, hard drives, keyboard, and video card. The advanced chipset is used to fine-tune the hardware setup of the system, such as fine-tuning the processor (including enabling or disabling Hyper-Threading), cache system, memory system, or I/O system. The peripherals setup options include onboard floppy disk drives, parallel ports, and serial ports that can be disabled or configured using the BIOS setup program. Power management includes several options to extend the battery life of notebook computers and to conserve power on desktop computers.

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