Same book, same game, and same error. The only difference with my introduction during my childhood was my father had a friend, who was building RAM extension b

Same book, same game, and same error. The only difference with my introduction during my childhood was my father had a friend, who was building RAM extension boards (and other things) out of his garage, and he, excited that a kid was into computers, extended our TRS-80 for free. I can't remember the exact number at the moment, but it was something insane like 40Kb of RAM (But it was sometimes... Unstable). I was the only one of my friends with a computer at the time, and we used to gather round and play BASIC games we either wrote ourselves, or write up the latest magazine game.