UEFI: Difference between revisions

A common misconception is that UEFI isand aBIOS replacementare formutually BIOSexclusive. In reality, both legacy motherboards and UEFI-based motherboards come with BIOS ROMs, which contain firmware that performs the initial power-on configuration of the system before loading some third-party code into memory and jumping to it. The differences between legacy BIOS firmware and UEFI BIOS firmware are where they find that code, how they prepare the system before jumping to it, and what convenience functions they provide for the code to call while running.