Bios Setup Program - Micron Millennia Series Technical Reference Manual

8
BIOS S P
ETUP ROGRAM
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The basic input/output system (BIOS) setup program provides functions that you can use to
modify and configure the integrated devices (video and audio) as well as the many
subsystems of the PC (hard disk, time and date, power management, and so on).
The configuration information that is defined through this program allows for upgradability and
ease of configuration. The system contains a battery supported complementary metal oxide
semiconductor (CMOS) memory location that stores the settings that are made in the setup
program. The attached battery constantly provides the CMOS with power, even when the
computer has been turned off so that these settings are not lost.
The BIOS also controls the startup sequence of the computer and provides the system with
the basic information it needs to initialize to the point where the operating system (Windows)
can boot the PC. The operating system also relies on some of the information provided in
CMOS to ensure proper communication between the software and hardware. If the CMOS
information is incorrect, the system may not operate correctly until accurate information is
stored in the CMOS.
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