Computers That Can Run Backwards

https://www.AmericanScientist.org/article/computers-that-can-run-backwards Discusses the relationship between adiabatic, reversible & quantum #computing to energy expenditure per bit. Introduces Koomey’s law that “computations per unit of energy have been doubling about every 1.6 years.”

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Koomey’s law, a relative of Moore’s law, says that over the first 70 years of electronic computing (as represented above by typical computers of the time), computations per unit of energy have been doubling about every 1.6 years. Had this not been happening, each doubling of components would have doubled the heat to be dissipated and would have shut down Moore’s law long ago. Koomey’s law is also good news for mobile computing, which relies heavily on battery power.”

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