Nybbles
Another tale by Andy Hertzfeld at Folklore.org. This time, the story of his first job on the Macintosh project.
It begins:
"My very first job on the Mac project was to help Burrell Smith and Brian Howard verify that the disk controller was working properly. They had just wired up a Woz-style disk controller to the Macintosh prototype, but they had no way to test if it was working properly without writing a fairly complicated program."

Nybbles