Computer Science GCSE
Lossy compression and permanent data loss
What Lossy compression and permanent data loss means in Computer Science GCSE, as defined for Pearson Edexcel.
Definition of Lossy compression and permanent data loss
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Read the wording for your board, then hide it and explain Lossy compression and permanent data loss in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
Permanently discards some detail that humans are less likely to notice, giving much smaller files for images, audio and video, but the original cannot be restored exactly.
Topics that use Lossy compression and permanent data loss
- Data storage and compression (Pearson Edexcel GCSE)
Related terms
- Lossless compression and exact reconstruction
- Matching compression method to file type
- Need for compression
- Nibble
- Binary multiples
- File-size expression
- Unit conversion
Using Lossy compression and permanent data loss in the exam
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