My dad gave me an old Powermac G3 Gossamer that was in a closet at an office of his. He just gave me the actual computer, so I hooked it up to a Dell monitor and turned it on. I get an otherwise blank screen with a floppy disk which has flashing question mark on it. I have no idea what I'm dealing with. Is there any way to hook up a generic mouse and keyboard, or will I need a monitor and mouse/keyboard designed for the Gossamer? Also what do I need to do get the computer running? I would guess the fashing question mark on the floppy disk means it needs the OS disc; just a guess. Any guidance would be appreciated.