Hmmm, whole article about people reverse engineering apple dos, and no mention of "Beneath Apple Dos"? That ended up being one of my apple ][ books that nearly fell apart.
My Apple ][ shipped with "Beneath Apple DOS", the Apple ][ programmer's guide, and the Apple ][ Reference Manual which included a full fold-out schematic!
The original Apple ][ was more than a computer, it was like a degree in computer science if you actually studied what shipped with it.
Don Worth and Pieter Lechner were idols of mine at the time. I would never have been able to crack a single floppy back then without this wonderful book.
