Supports Secure Boot.
If /sys/firmware/efi/ exists, the system is an EFI computer. Modern systems are UEFI rather than BIOS.
UEFI stores data in .efi file located in a hard drive, not a rom like in bios.
UEFI file stored in EFI system partition (ESP).
UEFI runs in 32/64 bit. bIOS in 16 bit. means uefi can support mouse and GUI.
UEFI supports disks over 2TB.