In the late 1960s, when mainframe computing was evolving, interactive computing was being done with time-sharing because it was economical. But, says Xerox PARC’s Butler Lampson, that wasn’t how anyone wanted to do it. Everyone wanted an efficient, working personal computer like the Alto. He describes exactly how popular the Alto was when it became available in the early 1970s. https://bit.ly/45iFdOc #XeroxAlto | Computer History Museum