The BIOS (Basic Input/Output System) for PCSX2 is an essential file that replicates the startup and operating environment of a real PlayStation 2 console. Without the BIOS, PCSX2 cannot boot or run any PS2 games because it relies on this firmware to simulate how the original hardware behaves. The BIOS handles core system operations like booting the disc, memory card management, and lo... https://psbios.com/ps1-bios/