Cambridge O Level Computer Science · Syllabus 2210 · Boolean Logic
Logic Gate Symbols
What is Logic Gate Symbols?
Logic gate symbols are the six standard drawings used to represent the NOT, AND, OR, NAND, NOR and XOR gates in a logic circuit, each with a fixed body shape and a fixed number of inputs.
This definition is part of the Boolean Logic chapter in Cambridge O Level Computer Science.
Logic Gate Symbols in context
The syllabus prints the six logic gate symbols in section 4, Details of the assessment, and requires that those are the symbols used when drawing logic circuits. They are the distinctive-shape symbols — each gate has its own outline, so a gate can be identified from its shape alone. Learn these six shapes exactly; there is no partial credit for a symbol that could be read as a different gate.
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