BIOS / UEFI
N/A
BIOS/UEFI
BIOS / UEFI · N/A · BIOS/UEFI · BYE-ohs / YOU-ef-eye · UEFI · firmware setup · system firmware · Hardware · boot · firmware · pcHardwareUEFI firmware setup system firmware/BYE-ohs / YOU-ef-eye/
Also known as: UEFI, firmware setup, system firmware
Last updated August 8, 2026
Definition
BIOS and its modern successor UEFI are PC firmware interfaces that run at power-on to test hardware and start the operating system bootloader.
Real-World Example
Entering UEFI setup to change boot order lets you start from a USB installer instead of the internal drive.
References
Related terms
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