This undated Associated Press file photo shows a section of the "Difference Engine", the first computer ever made, designed by Charles Babbage between 1823 and 1842. From textile machines to the horseless carriage to email, technology has upended industries and wiped out jobs for centuries. It also has created millions of jobs, though usually not for the people who lost them.
Photo by Associated Press /Chattanooga Times Free Press .
published Saturday, January 26th, 2013