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Computer Science
Edexcel GCSE Computer Science
Data
Edexcel GCSE Computer Science · 1CP2 · Topic 2
Data
Paper 1
· 12 notes
Understand how computers use binary to represent various types of data.
2.1
Binary
2.1.1
Binary Representation and States
2.1.2
Unsigned and Signed Integers
2.1.3
Denary and 8-Bit Binary Conversion
2.1.4
Binary Addition and Shifts
2.1.5
Binary Overflow
2.1.6
Hexadecimal and Binary Conversions
2.2
Data Representation
2.2.1
Character Encoding with 7-Bit ASCII
2.2.2
Bitmap Images in Binary
2.2.3
Analogue Sound in Binary
2.2.4
Limitations of Binary Representation
2.3
Data Storage and Compression
2.3.1
Storage Units and File Sizes
2.3.2
Data Compression Methods
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