Admiral Grace Hopper used to hand out lengths of wire just under 1 ft (30 cm). She called these nanoseconds, because it was the distance that light (or radio) can travel in 1 ns. They were visual aids that help to demonstrate the answer to questions like: why does satellite communication take so long? why is it important for CPUs to become smaller to be faster?
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Admiral Grace Hopper used to hand out lengths of wire just under 1 ft (30 cm). She called these nanoseconds, because it was the distance that light (or radio) can travel in 1 ns. They were visual aids that help to demonstrate the answer to questions like: why does satellite communication take so long? why is it important for CPUs to become smaller to be faster?