What is EFI and how does it work?

EFI, or Extensible Firmware Interface, is a modern replacement for the traditional BIOS. It offers advantages such as faster boot times, support for larger hard drives, enhanced security features, and a more user-friendly interface with graphical capabilities. EFI works by initializing hardware components and preparing the system for the operating system to load, providing a secure and efficient environment for the computer to start up.