What does UEFI stand for?

UEFI stands for Unified Extensible Firmware Interface. It is a modern firmware interface for computers that acts as a bridge between the operating system and the platform firmware. UEFI is designed to replace BIOS (Basic Input/Output System), which has been used for decades.

One of the significant advantages of UEFI over traditional BIOS is its ability to handle larger hard drives and faster boot times, along with enhanced security features such as Secure Boot. It supports a graphical user interface and mouse operations, which makes it more user-friendly compared to the text-based interface of a BIOS.

The other options provided don't accurately reflect what UEFI means or what it represents in the context of computer firmware. Thus, the correct interpretation of UEFI significantly contributes to the understanding of how modern computing systems manage firmware and interface with operating systems.