UEFI
hardwareUnified 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)