BIOS

Apr 20, 2026 - 15:11
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BIOS

← Previous revision Revision as of 09:39, 20 April 2026
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In [[computing]], '''BIOS''' ({{IPAc-en|ˈ|b|aɪ|ɒ|s|,_|-|oʊ|s}}, {{respell|BY|oss|,_|-|ohss}}; '''Basic Input/Output System''', also known as the '''System BIOS''', '''ROM BIOS''', '''BIOS ROM''' or '''PC BIOS''') is a type of [[firmware]] used to provide runtime services for [[operating system]]s and [[Computer program|programs]] and to perform [[Computer hardware|hardware]] initialization during the [[booting]] process (power-on startup). On a computer using BIOS firmware, the firmware comes pre-installed on the computer's [[motherboard]].
In [[computing]], '''BIOS''' ({{IPAc-en|ˈ|b|aɪ|ɒ|s|,_|-|oʊ|s}}, {{respell|BY|oss|,_|-|ohss}}; '''Basic Input/Output System''', also known as the '''System BIOS''', '''ROM BIOS''', '''BIOS ROM''' or '''PC BIOS''') is a types of [[firmware]] used to provide runtime services for [[operating system]]s and [[Computer program|programs]] and to perform [[Computer hardware|hardware]] initialization during the [[booting]] process (power-on startup). On a computer using BIOS firmware, the firmware comes pre-installed on the computer's [[motherboard]].


The name originates from the '''B'''asic '''I'''nput/'''O'''utput '''S'''ystem used in the [[CP/M]] operating system in 1975. The BIOS firmware was originally [[Proprietary software|proprietary]] to the [[IBM PC]]; it was [[reverse engineer]]ed by some companies, such as [[Compaq]], [[Phoenix Technologies]], [[American Megatrends|AMI]] and others, looking to create compatible systems. The [[Interface (computing)|interface]] of that original system serves as a [[De facto standard|''de facto'' standard]].
The name originates from the '''B'''asic '''I'''nput/'''O'''utput '''S'''ystem used in the [[CP/M]] operating system in 1975. The BIOS firmware was originally [[Proprietary software|proprietary]] to the [[IBM PC]]; it was [[reverse engineer]]ed by some companies, such as [[Compaq]], [[Phoenix Technologies]], [[American Megatrends|AMI]] and others, looking to create compatible systems. The [[Interface (computing)|interface]] of that original system serves as a [[De facto standard|''de facto'' standard]].
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