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Chapter-4
Introduction of BIOS
The BIOS is a program located in the Flash Memory on the motherboard. This program is
a bridge between motherboard and operating system. When you start the computer, the
BIOS program gains control. The BIOS
fi
rst operates an auto-diagnostic test called POST
(Power on Self Test) for all the necessary hardware, it detects the entire hardware devices
and configures the parameters of the hardware synchronization. After these tasks are
completed, BIOS will give control of the computer back to operating system (OS). Since
the BIOS is the only channel for hardware and software to communicate with, it is the key
factor of system stability and of ensuring your system performance at best.
Power on the computer and press <Del> key immediately to enter Setup.
If the message disappears before your respond but you still wish to enter Setup, restart
the system by turning it OFF then ON. You may also restart the system by simultaneously
pressing <Ctrl>, <Alt> and <Delete> keys. If you do not press the keys at the proper time
and the system does not boot, an error message will display and you will be asked to
4-1 Enter Setup
Summary of Contents for CI170A
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