: Many high-end systems like PS2, Dreamcast, and Saturn simply won't boot without them.
A Basic Input/Output System (BIOS) acts as the bridge between an emulator's software and the original hardware's architecture. While many low-end or early systems (like the NES or Genesis) can be emulated without these files, more complex hardware requires them to initialize the virtual system. Batocera.linux - Wiki Essential Systems batocera bios pack v35 hot