Andy Hertzfeld purchased an Apple II in January 1978, which quickly took over his life, leading him to start working at Apple in August 1979. He joined the nascent Macintosh team in early 1981, and became one of the primary authors of the original Macintosh system software, including the User Interface Toolbox and many of the original desk accessories.
He left Apple in March 1984, and went on to co-found three companies: Radius (1986), General Magic (1990) and Eazel (1999). In 2003, he developed a web-based system for collective storytelling (http://www.folklore.org), and used it to write anecdotes about the development of the Mac, which were collected in the book "Revolution in the Valley", published in December 2004. In August 2005, he joined Google and worked there until he retired in 2013.
