The Graphing Calculator Story is a good read about the Graphing Calculator program that was included with the original PowerPCs. An Apple contractor had his project canceled after a year of work. He didn\’t want to see all his work go to waste, and his door badge still worked, so he continued to work on his graphing calculator program for free. As more and more Apple engineers heard about his project, they donated their own time and other resources. When Apple finally saw the program, they loved it and it\’s been part of the Macintosh ever since. Pretty cool.