The Founders at Work book interview with Bricklin was pretty cool too. Lots of interesting stories and details on their development problems and design choices.
> I had it make a sound every time it recalculated a cell, but it turned out that the making of the sound on the Apple used up three-quarters of the CPU time, because it did it with a timing loop.
> If you showed it to a computer person who didn’t have those needs, they’d say, "That’s kind of cool, but what’s so special about that? I could just do it in Basic."
> Well, this was, "What’s the variable name going to be?"... Today it seems so natural: you use A1. Well, first of all, it was A1, not 1 comma 1. It is too many keystrokes, it’s not normal for people, and there’s a whole lot of problems with it. By going to the map coordinate type of thing— A1, G7, or something like that—that was something I knew regular people would understand.