UEFI
Introduction UEFI: Unified Extensible Firmware Interface (UEFI) is a specification for a software program that connects a computer's firmware to its operating system ( OS ). UEFI is expected to eventually replace basic input/output system ( BIOS ) but is compatible with it. The specification is most often pronounced by naming the letters U-E-F-I. UEFI functions via special firmware installed on a computer's motherboard . Like BIOS, UEFI is installed at the time of manufacturing and is the first program that runs when booting a computer. It checks to see which hardware components are attached, wakes up the components and hands them over to the OS. The new specification addresses several limitations of BIOS, including restrictions on hard disk partition size and the amount of time BIOS takes to perform its tasks. Most modern computer systems are equipped to support traditional BIOS, as well as UEFI, although Intel Corp. has stated its intention to ph...