I mean I can run a current through a metal pipe but it doesn’t mean I can store a copy of Skyrim on it.
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Have you ever been shocked by or seen a capacitor discharge spark, after it’s been disconnected from the original power source for a while?
That electrical current was “temporarily” stored in the gap between two electrically conductive plates.
We’ve learnt how to measure whether a capacitor is charged without discharging it, using transistors and ingenious wiring logic.
We’ve also learnt how to make capacitors much, much smaller, so that we can stick a few millions of them inside a computer chip – and since they don’t necessarily discharge when we read them, they store information for a long enough time to be useful for us.
To change the message that they store, we can charge /discharge them at will, which creates a binary code that computers can translate for us.
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