WHY are the symbols for power on / off “|” and “◯”?

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What are/were they meant to represent? When were they introduced? I can’t find any consistent reliable sources. I’d really appreciate references if anyone has any!

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Anonymous 0 Comments

It’s from binary. It basically represents transistors or logic gates, where when you have a ton of transistors you can manipulate 0 and 1s aka true and false to create complex things by feeding input (electricity) into a circuit and then open and close transistors to get a desired output.

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