Definitely analog, with a little SSI digital thrown in to detect contact between the "ball" and "paddles". CIAO - Martin. ______________________________ Reply Separator _________________________________ Subject: Re: A game for graphical LCD [OT] Author: pic microcontroller discussion list at Internet Date: 5/31/98 10:21 PM Was the original PONG digital? My brother built a version from plans in popular electronics that was done mostly in analog... BillW