Does anyone have a table or chart that lists the introductory dates of the various consumer goods that had digital components, say from Microwave ovens from the 1970s, through digital watches, PCs, cameras to cell phones AND that also have data on when x percent of consumers had these, e.g., 50% of consumers had a PC by 19xx? I can even partial lists of introductions and/percents of appropriation. I am trying to understand rates of adoption (i.e., diffusion of consumer digital technologies). US data is ideal, but I'll take it for any country. Thanks. -- James W. Cortada Senior Research Fellow Charles Babbage Institute University of Minnesota jcortada@umn.edu 608-274-6382