compression Flashcards
1
Q
Define Compression
A
Making files smaller
2
Q
Why do we compress files
A
Reduce amount of storage used
Faster transmission
Large files can be sent
3
Q
What is lossy compression
A
-Files are compressed by removing some detail
-Stored using fewer colours so fewer bits used per pixel
Use:Images, audio, video files
4
Q
Whats is lossless compression
A
- data is encoded without data loss
- use: Text files, data files
- e.g zipping files
