Hardware

Worked examples (6)

• 1State the role of the CPU and name its parts (2 marks)
• 2Match the register to its job (2 marks)
• 3Embedded vs general-purpose computers (4 marks)
• 4The three buses and their direction (4 marks)
• 5Describe the fetch-decode-execute cycle (6 marks)
• 6Factors affecting CPU performance (6 marks)

Model answers (6)

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Worked examples (6)

• 1Classify devices as input or output (2 marks)
• 2Choose barcode or QR for a task (2 marks)
• 3Sensors in a smart glasshouse (6 marks)
• 4Choose a printer for high-volume office printing (4 marks)
• 5How a 3D printer works (6 marks)
• 6Compare touch-screen technologies (6 marks)

Model answers (6)

• ✓Model answer — 0478 Paper 1 — style
• ✓Model answer — 0478 Paper 1 — style
• ✓Model answer — 0478 Paper 1 — style
• ✓Model answer — 0478 Paper 1 — style
• ✓Model answer — 0478 Paper 1 — style
• ✓Model answer — 0478 Paper 1 — style

Worked examples (6)

• 1Classify storage media (2 marks)
• 2State differences between RAM and ROM (2 marks)
• 3Describe how an HDD stores data (4 marks)
• 4Describe how an optical disc works (4 marks)
• 5Justify SSD vs HDD for a scenario (6 marks)
• 6Explain virtual memory (6 marks)

Model answers (6)

• ✓Model answer — 0478 Paper 1 — style
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Worked examples (6)

• 1Purpose of a NIC (2 marks)
• 2Structure of a MAC address (2 marks)
• 3Static vs dynamic IP addresses (4 marks)
• 4Public vs private IP addresses (4 marks)
• 5Compare a router and a switch (6 marks)
• 6How MAC and IP work together to deliver data (6 marks)

Model answers (6)

• ✓Model answer — 0478 Paper 1 — style
• ✓Model answer — 0478 Paper 1 — style
• ✓Model answer — 0478 Paper 1 — style
• ✓Model answer — 0478 Paper 1 — style
• ✓Model answer — 0478 Paper 1 — style
• ✓Model answer — 0478 Paper 1 — style