Compression
- Created by: Tomiwaq
- Created on: 15-05-19 19:41
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- Compression
- Compress files
- Data compression is when we make files smaller
- Uses
- Take up less storage space on a device
- Take up less bandwidth
- Allows web pages to load more quickly
- Lossy and lossless
- Lossy compression
- Works by permanently removing data from the file
- Lossless compression
- Makes the file smaller by temporarily removing data to store the file and then restores it to its original state when opened
- Lossy pros
- Greatly reduced file size
- Lossy files take up less bandwidth so can be downloaded
- Commonly used
- Lossy cons
- Lossy compression loses data
- Lossy compression can't be used on text or software files
- Lossy files are worse quality
- Lossless cons
- Only a slight reduction in file size
- Lossy compression
- Lossless pros
- Data is only removed temporarily so there is no reduction in quality
- Lossless files can be decompressed
- Compress files
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