Computer Science GCSE
Data compression
What Data compression means in Computer Science GCSE, as defined for Pearson Edexcel.
Definition of Data compression
Check what you remember
Read the wording for your board, then hide it and explain Data compression in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
Reduces file size by removing redundancy, saving storage and speeding up transfer; it can be lossless or lossy.
Topics that use Data compression
- Software (Pearson Edexcel GCSE)
Related terms
- Peripheral management
- Process management
- User management
- Backup
- Disk defragmentation
- File management
- File repair
Using Data compression in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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