How do I play these games?Unless you own original hardware (chances are you don't), your best bet is using an emulator. Surprisingly, considering the high popularity of the Apple II in the US, choice is somewhat limited. MAME has working support. If the necessary system ROMs are present, a game can be launched like this:
mame apple2e -window -flop1 ./1.dsk
As you can see, we don't have decent instructions here yet. If you have questions or if you want to help fill this gap, head over to the forum.