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Actually, the first computers used were completely mechanical ones, several hundred years ago (or thousands, I can never remember which). Basically what they would do is punch in an equation, and turn a crank for a long long time. It would give an answer in a certain amount of time, depending on just how complicated the problem was.

What you're probably looking for, though, are the mechanical computers back in the sixties, where a bunch of mechanical parts would change pixels on a tiny screen.

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16y ago

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