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85DR-C
Chapter
• BIOS stands for Basic Input and Output System. It was once called ROM
BIOS when it was stored in a Read-Only Memory(ROM) chip Now
manufacturers would like to store BIOS in EEPROM which means
Electrically Erasable Programmable Memory. BIOS used in this series of
mainboard is stored in EEPROM, and is the first program to run when you
turn on your computer.
• BIOS performs the following functions:
1. Initializing and testing hardware in your computer (a process called
"POST", for Power On Self Test).
2. Loading and running your operating system.
3. Helping your operating system and application programs manage your
PC hardware by means of a set of routines called BIOS Run-Time Service.
The following topics are included in this chapter:
4-1 About BIOS Setup
4-2 To run BIOS Setup
4-3 About CMOS
4-4 The POST (Power On Self Test)
4-5 To upgrade BIOS
4-6 BIOS Setup
4
BIOS Setup
THE BIOS
50
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