Computer Science GCSE
Need for compression
What Need for compression means in Computer Science GCSE, as defined for Pearson Edexcel.
Definition of Need for compression
Check what you remember
Read the wording for your board, then hide it and explain Need for compression in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
Compression reduces the number of bits used to store or transmit data, saving storage space and reducing transmission time and bandwidth use.
Topics that use Need for compression
- Data storage and compression (Pearson Edexcel GCSE)
Related terms
- Lossless compression and exact reconstruction
- Lossy compression and permanent data loss
- Matching compression method to file type
- Nibble
- Binary multiples
- File-size expression
- Unit conversion
Using Need for compression in the exam
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