Apple, and the Macintosh, once were the envy of the home computer manufacturing world. But the rise of Microsoft and the Windows-based PC very nearly put Apple on the garbage heap, and when Steve Jobs brought his company back from the brink he did it not with a Microsoft competitor, but with a handheld, digitally-based mp3 which was to the mp3 world what he had hoped Macintosh would be to PCs. Why?