[ELI5] How computers work using only 1s and 0s?

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[ELI5] How computers work using only 1s and 0s?

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Answer 1

The same way your brain does. Your brain also works only with neurons on or off.

Neither actually works just using 1s and 0s. That is the form of the data that they use. But the physical structure of the brain and the processors is what allows the data to be processed in a meaningful way.