To understand why you need a PlayStation BIOS for ArkOS, you must understand what a BIOS (Basic Input/Output System) actually does.
/storage/roms/bios/
Remove the (the one for games) or the main card from your device. Insert it into your Windows, Mac, or Linux computer. ArkOS uses a standard Linux partition scheme, but the "EASYROMS" partition is visible to Windows. arkos playstation bios
This might let a few games run, but you will experience: To understand why you need a PlayStation BIOS