Cambridge AS & A Level Computer Science
1.3Compression
Compression in Cambridge AS & A Level Computer Science: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic23 practice questions1 lesson
Learning objectives
What the syllabus expects you to be able to do.
- 1.3.1Explain the need for compression and give examples of its use.
- 1.3.2Compare lossless and lossy compression and justify a method for a situation.
- 1.3.3Describe how text, bitmap, vector and sound files can be compressed, including run-length encoding.
Lessons
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Data compression: lossless, lossy and run-length encoding
40 min
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Sample question
A sample question on this topic. Answer it, check it, then read the worked answer.
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