My best guess would be Adventure on Atari...or maybe something on Apple IIe...though I can't remember any names, I do remember one kind of bakers game, and some other crap for the under 5 crowd, I'm gonna guess I was 2 or 3 at the time.
Edit: Thank god for wiki...Apple Panic, Castle Wolfenstien, Gertrudes Secrets, Karateka, Lode Runner, Miner 2049er, Montezuma's Revenge, Rocky's Boots, Spy Hunter, Summer Games, Winter Games, and Zaxxon to name a few. But I don't know which I played first, or if the Apple or the Atari was first.