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UEFI

hardware

Unified Extensible Firmware Interface, the modern replacement for BIOS managing the boot process

Pronunciation

Correct

U-E-F-I

/juː iː ɛf aɪ/

Spelled out as individual letters: 'you-ee-eff-eye'. The UEFI Forum, the standards body that governs the specification, consistently uses this initialism pronunciation.

Source: uefi.org(official spec)

Accepted Variants

Accepted Variant

YOO-fee

/ˈjuːfiː/

Some in the community shorten it to 'yoo-fee', though the official body spells it out letter by letter.

Source: en.wikipedia.org(community consensus)

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