PS1 BIOS is essential to emulate PlayStation games on a PC running Linux or Windows. It mimics the functionality of the original hardware. It represents the Play Station 1’s input/output system, also known as SCPH-1001 BIOS. An essential component of the console’s design is the PS1 BIOS. It facilitates the system’s setup and functioning. Therefore, PS1 BIOS is required if you want to play your favourite PS1 game without any issues.