Landauer's principle

Physical lower limit to energy consumption of computation / From Wikipedia, the free encyclopedia

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Landauer's principle is a physical principle pertaining to the lower theoretical limit of energy consumption of computation. It holds that an irreversible change in information stored in a computer, such as merging two computational paths, dissipates a minimum amount of heat to its surroundings.[1]

The principle was first proposed by Rolf Landauer in 1961.