An *IEEE Spectrum* story from David Brock: The Shocking Truth Behind Arnold Nordsieck’s Differential Analyzer <https://spectrum.ieee.org/tech-history/dawn-of-electronics/the-shocking-truth-behind-arnold-nordsiecks-differential-analyzer>To program this electromechanical computer, you plugged in the cords in specific patterns—and with extreme caution _________________________ Brian A. Berg / bberg@StanfordAlumni.org Berg Software Design 14500 Big Basin Way, Suite F, Saratoga, CA 95070 USA Voice: 408.741.5010 / Cell: 408.568.2505 Consulting: Flash Memory/USB/Storage/Patents visit the Storage Cornucopia: www.bswd.com FMS Technical Chair: www.FlashMemorySummit.com IEEE Milestone <http://www.ieeeghn.org/wiki/index.php/Milestones:List_of_IEEE_Milestones> Coordinator for Region 6 <http://www.ieee-region6.org/> IEEE SCV Section <http://www.ewh.ieee.org/r6/scv/> Past Chair / IEEE-CNSV <http://www.CaliforniaConsultants.org> Board Director IEEE Silicon Valley Tech History Committee <http://www.SiliconValleyHistory.com/> Chair