Calculators
Graphing calculators were required at my high school for many of the advanced math classes. My HP-48 calculator one of the first devices I learned to write programs for. Most kids in my school had one of the TI-80s but a few of the nerds shelled out for the HP. Those with access to a BBS or the Internet would spread the games to their fellow classmates. I would say most good computer programmers have spent sometime plugging programs into their calculators. It is too bad TI is going after these kids. These kids are their biggest fans.