BIOS
Sign in to saveIn computing, BIOS (, ; 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 systems and programs and to perform 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.
AI overview
BIOS is a type of firmware that comes pre-installed on your computer's motherboard and handles the initial setup of your hardware when you turn on the computer. It also provides essential services that help your operating system and programs run properly once the computer has started up.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Technology standard.image
- Pair of BIOS chips.jpg
- Technology standard.caption
- A pair of AMD BIOS chips for a Dell 310 computer from the 1980s. The bottom one shows the distinct window of an EPROM chip.
- Technology standard.year_started
- 1981
- Technology standard.organization
- Originally IBM as proprietary software, later industry wide as a de facto standard. In 1996, the BIOS Boot Specification was written by Compaq, Phoenix Technologies and Intel.
- Technology standard.successor
- UEFI
via Wikipedia infobox
Article
29 sectionsContents
- History
- {{Anchor|BCU}}User interface
- Extensions (option ROMs)
- Physical placement
- Operation
- System startup
- Boot process
- Boot priority
- Boot failure
- Boot environment
- Operating system services
- Processor microcode updates
- {{Anchor|SLIC}}Identification
- Overclocking
- Modern use
- Configuration
- Setup utility
- Hardware monitoring
- {{anchor|Flashing the BIOS}}Reprogramming
- Hardware
- {{Anchor|COMPARISON}}Vendors and products
- Open-source BIOS replacements
- {{Anchor|MEBROMI|DualBIOS}}Security
- Alternatives and successors
- See also
- Notes
- References
- Further reading
- External links
In computing, BIOS (, ; 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 systems and programs and to perform 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 Basic Input/Output System used in the CP/M operating system in 1975. The BIOS firmware was originally proprietary to the IBM PC; it was reverse engineered by some companies, such as Compaq, Phoenix Technologies, AMI and others, looking to create compatible systems. The interface of that original system serves as a de facto standard.