Data Compression

§3.3.8Foundation and Higher tierAQA GCSE Computer Science (8525)

Data Compression sits inside Data Representation in the AQA GCSE Computer Science specification. Below is the structure the official spec gives it — the areas it covers and the concepts examiners can ask about.

Concepts you need to know

The named concepts the 8525 specification examines in this subtopic. The full what-to-know, how-to-get-top-marks and examiner-expectations breakdown for each lives inside the app.

Why Compress Data?Huffman CodingRun Length Encoding (RLE)

Other subtopics in Data Representation

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