The Amiga couldn't talk to a PC screen with any amount of pin adapters anyway. It used a different frequency, which is seriously aggravating today if you want to fire up an old Amiga for nostalgia's sake.
It could read DOS discs with a driver iirc but the PC definitely couldn't read Amiga discs. It got extra capacity out of them (720k vs 880k) but at a definite cost in compatibility.