Fetch–decode–execute cycle
Trace instructions through CPU registers and buses, then practise written explanations.
- OCR H446
- AQA 7517
- Cambridge 9618
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Trace instructions through CPU registers and buses, then practise written explanations.
Understand keys, relationships and a simple database design.
Apply all six gates, Boolean laws and multi-stage circuits to exam-length questions.
Start with the gate symbols and simple circuits required by your board. The exact gate set differs by specification.
Draw gate symbols and simple circuits, then complete truth tables and GCSE practice.
OCR: AND, OR, NOT. AQA: those plus XOR. Cambridge IGCSE: all six gates.
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