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More on BIOS

Friday, April 14th, 2006 by | Filed Under: Computer Terms
 
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More on BIOS

We have explained BIOS to you in the past, but I’ve gotten some e-mails from people wondering more about BIOS, so here you go!

As stated in our other tip, BIOS stands for Basic Input/Output System. It is a program that comes preinstalled on computers that are Windows compatible. It does not come with Macs. BIOS is basically the program that your computer uses to start each time you boot up.

Your CPU (central processing unit) connects with the BIOS even before the operating system is completely loaded. It then proceeds to check your hardware connections and checks to make sure all of your devices, etc. are working correctly. If everything is in ship shape condition, the BIOS finishes loading your operating system and your computer is able to finish the start up process.

The BIOS are located in an erasable programmable read only memory chip (EPROM), which coincides with the ROM (read only memory) area of your computer. This chip works with your CPU and gives control to the BIOS to make your computer function.

Along with helping your computer to start, the BIOS are still used even after all of the booting up is done. It serves as a medium between your CPU and the input/output devices within your system. The BIOS keeps your operating system from having to know even more information, such as hardware addresses about the other devices. The BIOS takes care of all of that.

Most people do not need to worry about their BIOS, but if changes ever need to be made, you can access the BIOS while your system is starting up by holding down any key (usually the Delete key) as soon as your computer starts to boot up.

Read this tip for even more information to go along with this explanation of BIOS.

~ Erin

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