Computers are inefficient thanks to the copper wires used inside them. Researchers at Stanford are showing that there's a better way.
High school physics will tell you that if you pass a signal down a wire, by the time it gets to the end the signal will have degraded. The same is true with computers, which typically use copper wires as a way of connecting together internal components, or even entire computers in data centers. According to researchers at Stanford, roughly 80% of the power used by a computer is lost thanks to the use of these copper wires.
from Fast Company http://bit.ly/162ljrX
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