BIOS - Basic Input/Output System
The software used to start your computer
– The firmware - System BIOS, ROM BIOS
– ROM or flash memory
Initializes CPU and memory - Build the workspace
POST - Power-On Self-Test
UEFI BIOS
Unified Extensible Firmware Interface
– Based on Intel’s EFI (Extensible Firmware Interface)
A defined standard - Implemented by the manufacturers