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Friday, October 12, 2012

Basic Input and Output System - BIOS


 

In relative terms, each motherboard is manufactured with software that actually teaches it. It is important to understand that computers are literally stupid until you tell them that they exist and what they are capable of. These instructions are given each time the computer is started. CMOS is the software that tells a computer what it is and the BIOS is the software that tells it what it can do.

The BIOS is an interface that allows the computer settings and installed hardware to work with all the other motherboard components. It provides instructions to the computer for hardware including FDD (floppy Drive Controllers), HDD (Hard Drive Controllers). It also instructs the PC on a number of other setting that can be edited by the user. Using the motherboard SETUP Software allows a user to edit/change features that are supported by that protocolar motherboard. When you install new hard drives, floppy drives, CD-Roms, or memory the BIOS needs to know it. Most newer motherboards will recognize the new install and require you to enter into the System SETUP (part of the BIOS) Screen to make the changes. You may also enter the BIOS yourself to make changes to enhance your computers reliability and speed. Check with your motherboard manufacturer prior to making any changes in the BIOS, you may cause problems if you make changes that are not supported. Most BIOSs Setup Screen have hot keys that can be used to gain access to them. If you watch your screen while the computer startup is in progress you may see text that has these instructions. Usually pressing the “F1”, or “DELETE” keys on the keyboard will allow you to enter the setup screen. 
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