IGCSE Computer Science (0478) · Paper 2 — Algorithms, Programming & Logic
Boolean Logic
Logic gates, circuits, truth tables and logic expressions — truth-table questions are marked row-by-row, which rewards a careful method over a fast guess.
Boolean logic
- Identify and use the standard symbols for logic gates.
- Define and understand the functions of logic gates: NOT, AND, OR, NAND, NOR, XOR (EOR) — the binary output produced from all possible binary inputs. NOT is single-input; all others are limited to two inputs.
- Use logic gates to create given logic circuits (max three inputs, one output, drawn without simplification) from a problem statement, a logic expression, or a truth table.
- Complete a truth table from a problem statement, a logic expression, or a logic circuit.
- Write a logic expression from a problem statement, a logic circuit, or a truth table.
Practice this topic
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