I downloaded the playstation emulator and I well this is what it says:
The emulator requires a PS1 BIOS file which should be placed in the bios directory. By default the emulator will look for scph1001.bin - this version is highly recommend because it is the only well tested one although other bioses should work.
The information on Computing.Net is the opinions of its users. Such
opinions may not be accurate and they are to be used at your own risk.
Computing.Net cannot verify the validity of the statements made on this
site. Computing.Net and Compnet Ventures, LLC hereby disclaim all responsibility
and liability for the content of Computing.Net and its accuracy.