UEFI

Rare card · No. 33677

Unified Extensible Firmware Interface or UEFI is a specification for the firmware architecture of a computing platform. When a computer is powered on, the UEFI implementation typically runs first, before the operating system or any other program is loaded. Examples include AMI Aptio, Phoenix SecureCore and InsydeH2O. According to the UEFI Forum, TianoCore EDK II is the preeminent implementation, which other implementations heavily borrow code from. UEFI replaces the BIOS that was present in the boot ROM of all personal computers that are IBM PC compatible, although it can provide backwards compatibility with the BIOS using CSM booting. Unlike the BIOS, which was originally developed by IBM as a proprietary architecture, the UEFI specification is managed by an industry consortium. Most production firmware implementations for both remain proprietary. Intel developed the original Extensible Firmware Interface (EFI) specification. The last Intel version of EFI was 1.10 released in 2005. Subsequent...

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