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Q

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Computer Studies Data Representation

Why do computers use the binary number system?

A Because binary is easier for humans to understand

B Because computers can only recognise two electrical states ON and OFF

C Because binary numbers are always larger than decimal

D Because binary requires less electricity

Computers use binary because their circuits can only be in two states — ON (1) or OFF (0) — which map directly to binary digits.

Reference: Computer Studies Textbook , Page 1

What are the only two states a computer circuit can be in?