PS2 BIOS stands for Basic Input/Output System which manages the flow of data between a processor and other drives like Hard Disk or CD/DVD. With the help of BIOS, the application which you run (games in case of Play Station) will understand the hardware of your device ps2 bios rom.
This means that if you are running a high-graphics game in your play station then that game will collect data from your BIOS and then you can play it get here also ps2 roms. Otherwise when you don’t have enough system requirements for your game then BIOS showed that to the game and you won’t be able to run it on your PS2. Since every platform has it’s own BIOS device just like that computer has different settings. So, it makes it difficult to run a Play Station Game on Windows Computer or Linux or even on MacOs. This is the reason why we need to have the PS2 BIOS to run any game on the Windows machine. But these don’t work directly because both have different operating in this way we will be required to have an Emulator. There is one Emulator available to run Play Station Games on Windows PC, macOS or even on Android, iPhone. The name of this Emulator is the PCSX2 Emulator which we will discuss below.