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Why do computers use binary?

Lesson 4 / 6

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I can explain why computers use binary to represent all data and instructions.

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Computers use binary to represent all data and instructions. Binary is a number system consisting of 1s and 0s. Binary can be represented by two-state electrical signals within circuits. A transistor that is “on” represents a 1; a transistor that is “off” represents a 0.

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