CNET GLOSSARY: Terms for the techie
basic input/output system
The BIOS is coded into a PC's ROM to provide the basic instructions for controlling system hardware. The operating system and application programs both directly access BIOS routines to provide better compatibility for such functions as screen display. Some makers of add-in boards, such as graphics cards, provide their own BIOS modules that work in conjunction with (or replace) the BIOS on the system's motherboard.
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