The author of this article has a whole set of articles on the Xerox Alto (http://www.righto.com/search/label/alto http://www.righto.com/search/label/alto). This

The author of this article has a whole set of articles on the Xerox Alto (http://www.righto.com/search/label/alto http://www.righto.com/search/label/alto). This one focuses on the microcode: http://www.righto.com/2016/09/xerox-alto-restoration-day-5-smoke-and.html http://www.righto.com/2016/09/xerox-alto-restoration-day-5-s...