An EETD Seminar on August 8, 2011 -- by Jon Koomey, Stanford University's Steyer-Taylor Center for energy Policy and Finance (& LBNL)
This talk will explore the relationship between the performance of computers and the electricity needed to deliver that performance. Computations per kWh grew about as fast as performance for desktop computers starting in 1975, doubling every 1.5 years, a pace of change in computational efficiency comparable to that from 1946 to the present. Computations per kWh grew even more rapidly during the vacuum tube computing era and during the transition from tubes to transistors but more slowly during the era of discrete transistors. As expected, the transition from tubes to transistors shows a large jump in computations per kWh.....

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j vimeo.com/37625841

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