Bios: What exactly are they, and where can I get them?

One common problem I have with PSX Emulators is that they require a Bios, and I have no clue what they are or where to find them. Please help me out; I've spent a long time trying to find a Final Fantasy VII iso, and I'm dying to play it!

the PSX BIOS is a file named SCPH1000.bin. Google that filename and you'll find it :)

Replying to #2

Thanks a lot! ;D