Compression Flashcards
1
Q
Compression
A
Encoding Information using fewer bits then the original
2
Q
Why compress
A
- Takes up less space on disk
- Allow things to load faster
- Allows attachments to fit. below size limit
3
Q
Types of compression
A
- Lossy
- Lossless
4
Q
Lossy
A
Permanently removing data
- cannot be decompresed to restore file to original quality
5
Q
Lossless
A
Finding patterns in data to reduce file size
- does not permanently reduce data
- is reversible
6
Q
Types of lossless compression
A
- Run length encoding
- Dictionary encoding
