Unified Extensible Firmware Interface
The Unified Extensible Firmware Interface Forum is a non-profit collaborative trade organization formed to promote and manage the UEFI standard. As an evolving standard, the UEFI specification is driven by contributions and support from member companies of the UEFI Forum.
In the past, engineers referred to Basic Input/Output System (BIOS). Back then, processors were running in 16-bit mode, and RAM was architecturally limited to one megabyte. Then came 32-bit, followed by 64-bit x86 CPUs where the amount of RAM increased and new ways of accessing it were being developed.
But BIOS remained the same and was far from ideal. BIOS code was limited and the operating system loader had to load kernel using 20-year-old basic BIOS services. Creating a new standard seemed impossible on such a diverse market, but it was achieved: UEFI.
UEFI Self-Paced Courses
To learn more about BIOS, UEFI, and Intel Architecture, access the complimentary online, self-paced courses courtesy of Intel.
- Platform Architectural Resources. Features, specs & architectural details for Intel's processor families.
- Intel® Embedded Design Center. Resources for Intel’s newest embedded processors and chipsets including confidential documentation, training, online support and step-by-step guidance.
- Architecture & Silicon Technology
- Intel Research Home