Computer Science GCSE
Lossless compression and exact reconstruction
What Lossless compression and exact reconstruction means in Computer Science GCSE, as defined for Pearson Edexcel.
Definition of Lossless compression and exact reconstruction
Check what you remember
Read the wording for your board, then hide it and explain Lossless compression and exact reconstruction in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
Reduces file size while allowing the original data to be reconstructed exactly, so it suits text, spreadsheets, source code and archives.
Topics that use Lossless compression and exact reconstruction
- Data storage and compression (Pearson Edexcel GCSE)
Related terms
- Lossy compression and permanent data loss
- Matching compression method to file type
- Need for compression
- Nibble
- Binary multiples
- File-size expression
- Unit conversion
Using Lossless compression and exact reconstruction in the exam
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