1
Q
Define lossy compression
A
Lossy compression is where some data is removed and discarded, reducing the file size.
2
Q
List some standards that use lossy compression.
A
- JPEG
- MPEG
- MP3
3
Q
Define lossless compression
A
Lossless compression is where the file size is reduced without any data being lost, resulting in less of a reduction than lossy.
4
Q
List some standards that use lossless compression
A
- GIF
GCSE Computer Science (OCR J277)
flashcards
Decks in class (27)
# Cards
-
Architecture of the CPU - Paper 112
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CPU Performance - Paper 16
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Embedded Systems - Paper 14
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Primary Storage (Memory) - Paper 18
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Secondary Storage - Paper 111
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Units - Paper 17
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Data Storage - Paper 110
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Compression - Paper 14
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Networks and Topologies - Paper 128
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Wired and Wireless Networks, Protocols and Layers - Paper 10
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Threats to Computer Systems and Networks - Paper 10
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Identifying and Preventing Vulnerabilities - Paper 10
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Operating Systems - Paper 19
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Utility Software - Paper 13
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(todo open source & proprietary) Ethical, Legal, Cultural and Environmental Impact - Paper 111
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Computational Thinking - Paper 20
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Designing, Creating and Refining Algorithms - Paper 20
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Searching and Sorting Algorithms - Paper 20
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Programming Fundamentals - Paper 20
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Data Types - Paper 20
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Additional Programming Techniques - Paper 20
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Defensive Design - Paper 20
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Testing - Paper 20
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Boolean Logic - Paper 20
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Languages - Paper 20
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The Integrated Development Environment (IDE) - Paper 20
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Further Notes on Exam Reference Language (ERL)0
