How-To Geek


The BIOS, or Basic Input Ouput System, is a set of routines stored in the firmware of a computer motherboard that facilitates the startup process for the machine. Basic functions like loading drivers for peripherals (such as the mouse and keyboard), mounting the hard disks, and providing feedback to the user via the monitor are all common tasks performed by computer BIOS.

Although the BIOS function is slowly being replaced by EFI (Extensible Firmware Interface) on modern machines, the term “BIOS” is deeply entrenched in computer lexicon and the acronym EFI is rarely used outside of technical documents.

For more information about the BIOS and EFI , check out the following How-To Geek articles:

What Does My BIOS Do After Booting?

HTG Explains: Learn How UEFI Will Replace Your PC’s BIOS

HTG Explains: How Windows 8′s Secure Boot Feature Works & What It Means for Linux

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