Joshua Cussen
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Exam specifications
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OCR GCSE Computer Science (J277)
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J277 01 Computer systems
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1.2 Memory and storage
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1.2.5 Compression
1.2.5 Compression
Dec 21, 2025
1 min read
The need for
compression
Types of compression:
lossy
lossless
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1.2 Memory and storage
J277-01 Computer systems
OCR GCSE Computer Science (J277)