ALEVEL · computer science · AQA
4.5 Number systems
Explore number systems, information representation, compression and encryption covered by the AQA A-Level Computer Science specification.
Specification
Specification sections
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4.5
Number systems
Number systems and the representation of information in computer systems.
Number Systems
Subtopic: 4.5.1
Number Bases
Subtopic: 4.5.2
Units of Information
Subtopic: 4.5.3
Binary Number System
Subtopic: 4.5.4
Information Coding Systems
Subtopic: 4.5.5
Representing Images
Subtopic: 4.5.6.4, 4.5.6.5, 4.5.6.6, 4.5.6.7, 4.5.6.8
Representing Sound
Subtopic: 4.5.6.1, 4.5.6.2, 4.5.6.3
Compression
Subtopic: 4.5.6.9
Encryption
Subtopic: 4.5.6.10