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Edexcel ·Computer Science·Cambridge IGCSE Computer Science

Boolean Logic & Logic Gates

14 min read

The six logic gates and their truth tables, building and reading logic circuits, and writing logic expressions.

Logic gates

A logic gate takes one or more binary inputs (0 or 1) and produces a single binary output. The six gates in the syllabus are NOT, AND, OR, NAND, NOR and XOR. A truth table lists the output for every possible combination of inputs.

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