Number Bases

§3.3.1Foundation and Higher tierAQA GCSE Computer Science (8525)

Number Bases is one of 8 subtopics in Data Representation, part of AQA GCSE Computer Science (specification §3.3.1). Examiners can ask about 3 named concepts here, from Decimal, Binary, Hexadecimal to Why Hexadecimal?. Inside the app, this subtopic can be practised directly: exam-format questions, AI-marked against the official mark scheme.

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.

Decimal, Binary, HexadecimalWhy Binary?Why Hexadecimal?

Other subtopics in Data Representation

Converting Between Number Bases Units of Information Binary Arithmetic Character Encoding Representing Images Representing Sound Data Compression

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