I still have our old Model 4P, and it's functional (as well as our Model 1, and my Model 100). I hacked the crap out of those machines; they taught me programm

I still have our old Model 4P, and it's functional (as well as our Model 1, and my Model 100). I hacked the crap out of those machines; they taught me programming. Assembly language routines in string space, anyone? VARPTR FTW.