==External links==* PARC official web site* Xerox PARC innovation* Xerox Star Historical Documents* MacKiDo article* Oral history interview with Terry Allen Winograd Charles Babbage Institute, University of Minnesota, Minneapolis* Oral history interview with Paul A. Strassmann Charles Babbage Institute, University of Minnesota, Minneapolis* Oral history interview with William Crowther Charles Babbage Institute, University of Minnesota, Minneapolis