How the CPU Executes Programs | GCSE Computer Science (Gold)

Описание: This is the Gold-level explanation of the purpose of the CPU for GCSE Computer Science.

In this lesson, we explain the purpose of the CPU using precise, exam-ready language, suitable for 4–6 mark questions.

You will learn how to describe:
How the CPU executes programs
How instructions and data are stored in main memory
How the CPU fetches, decodes, and executes instructions in sequence
How the CPU controls the computer system
How the CPU manages communication between memory, input, and output devices

This explanation is designed to help you write high-mark exam answers, not just understand the topic.

🎓 Specification coverage
This lesson is aligned with:
OCR GCSE Computer Science (J277)
AQA GCSE Computer Science (8525)
Edexcel GCSE Computer Science

📘 Part of the Systems Architecture topic

This video completes the Purpose of the CPU sequence:
Bronze — What the CPU is
Silver — How the CPU works within a system
Gold — Exam-ready explanation of the CPU’s purpose

🧠 Best use
Exam revision
6-mark question preparation
Model answer practice
Independent study

Calm narration and abstract visuals are used to reduce cognitive load and focus on exam precision.

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