Cambridge IGCSE Computer Science
3.3Data storage
Data storage in Cambridge IGCSE Computer Science: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic50 practice questions3 lessons
Learning objectives
What the syllabus expects you to be able to do.
- 3.3.1Explain primary storage, including the roles of RAM and ROM.
- 3.3.2Explain secondary storage.
- 3.3.3Describe how magnetic, optical and solid-state storage work, with examples.
- 3.3.4Describe virtual memory: how it is created and used and why it is needed.
- 3.3.5Explain cloud storage.
- 3.3.6Compare storing data in the cloud with storing it locally.
Lessons
- Full access
Cloud storage and cloud computing services
30 min
- Full access
Primary storage: RAM, ROM and virtual memory
30 min
- Full access
Secondary storage: magnetic, optical and solid-state
35 min
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Sample question
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