0478/0984 iGCSE Computer Science - Unit 3 Lesson 1: Hardware - CPU Architecture Fetch Decode Execute

📌 0478/0984 iGCSE Computer Science - Unit 3 Lesson 1: CPU Architecture

Welcome to Unit 3, Lesson 1 of the iGCSE Computer Science (0478/0984) course. In this lesson, we break down the fundamentals of computer hardware and explore the architecture of the CPU — the brain of the computer.

🎥 Lesson Breakdown:
0:00 - Intro
2:00 - Components of a Computer System
3:16 - Von Neumann Architecture Explained
4:25 - The CPU: Purpose and Components
5:52 - Registers and Their Purposes
9:16 - The Control Unit
10:23 - ALU: Arithmetic Logic Unit
11:20 - Fetch-Decode-Execute Cycle
15:20 - System Buses

🔹 Topics Covered:
✅ What is computer hardware?
✅ Types of hardware: input, output, storage, and processing devices
✅ The purpose and components of the CPU (ALU, CU, registers, cache)
✅ Understanding the Von Neumann architecture
✅ The stages of the Fetch-Decode-Execute (FDE) cycle

📚 Perfect for:
✔️ iGCSE Computer Science students
✔️ Anyone interested in how computers process data and run programs
✔️ Teachers & educators needing clear, structured explanations

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📖 Lesson slides available here: https://cswithmrg.gumroad.com/l/ComputerArchitecture
💬 Got a question? Drop it in the comments below!

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