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BIOS

American  
[bahy-ohs] / ˈbaɪ oʊs /

noun

Computers.

  1. computer firmware that directs many basic functions of the operating system, as booting and keyboard control.

Etymology

Origin of BIOS

First recorded in 1975–80; abbreviation of B(asic) I(nput)/O(utput) S(ystem)

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.