3 ms·
But how do they know how much energy a bit requires?
by Tichy 14y ago
But how do they know how much energy a bit requires?
- jessaustin 14y agoThat is technology-dependent. Mercury-filled-cylinder delay lines took more energy than modern DRAM.
- marcosdumay 14y agoAs I said, that's by the second law of thermodynamics... There is a nice <a href="http://en.wikipedia.org/wiki/Maxwell%27s_demon>tought http://en.wikipedia.org/wiki/Maxwell%27s_demon>tought experiment</a> linking thermodynamics to information theory. And guess what, experiments agree with the theory. After you have the theoretical framewok done, it is just a matter of applying the <a href="http://en.wikipedia.org/wiki/Boltzmann%27s_entropy_formula>Boltzmans http://en.wikipedia.org/wiki/Boltzmann%27s_entropy_formula&#... entropy formula</a>, and you are done.
- caf 14y agoWe know the minimum amount of energy required, because we exactly know the information content of a bit.