Just for the heck of it... I have an Apple II. Not a II plus, or IIe here. It has serial number 8050 hand written on the motherboard. Sticker on the bottom of case lists serial # A2S1-75884. Also lists models available as: A2S0016 - 16K model A2S0032 - 32K model A2S0048 - 48K model So I guess these are the three configurations available at the time for the Apple II.