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Binary (Base 2)

Updated 09 Sep 2026

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What it is
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  the base-2 number system, using only digits 0 and 1
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Why computers use it
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  computers are built from transistors, which naturally represent two stable states (on/off) — binary maps directly onto this hardware reality
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Related
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  Number System
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  Hexadecimal (Base 16)

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