ZIMSEC A-Level Computer Science
3.4Logic gates
Logic gates in ZIMSEC A-Level Computer Science: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic46 practice questions2 lessons
Overview
NAND, NOR, XOR and XNOR (with NOT, AND and OR assumed); truth tables of up to three inputs.
Learning objectives
What the syllabus expects you to be able to do.
- 3.4.1Use logic gates, including NAND, NOR, XOR and XNOR, to design logic circuits.
- 3.4.2Construct truth tables with up to three inputs and calculate the output of a circuit for given inputs.
Lessons
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Logic circuits, expressions and truth tables
50 min
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Logic gates and truth tables
40 min
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Sample question
A sample question on this topic. Answer it, check it, then read the worked answer.
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