News From the Field
Magnetic Memory and Logic Could Achieve Ultimate Energy Efficiency
July 1, 2011
Information theory and the second law of thermodynamics dictate that a logical operation in a computer must consume a minimum amount of energy. Today's computers consume a million times more energy per operation than this limit, but magnetic computers with no moving electrons could theoretically operate at the minimum energy, called the Landauer limit, according to University of California, Berkeley, electrical engineers.
University of California, Berkeley
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