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Inside the Commodore 64

This pioneering PC made instant geeks out of millions of people back in the 80s. But what lies within the Commodore 64's fetching brown shell?

Benj Edwards

How the Keys Work 10 of 12

Now let's take a look inside the keyboard. Beneath each key cap is a plastic plunger (the black pieces above), each of which has a small conductive rubber pad at its base. When the user pushes down on the key, the pad completes a circuit between a pair of copper contacts on the underlying circuit board (shown on the right). When the key is released, a spring pushes the key back up.

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