compression Flashcards
1
Q
Define data compression
A
Make file sizes smaller so file transfer is faster
2
Q
What is lossy compression
A
Greatly reduces file size but some data is lost
3
Q
Give an advantage of lossy compression
A
Takes less bandwidth
greatly reduce file size
4
Q
Give a disadvantage of lossy compression
A
Data lost cant be restored
cant be used for text/software files
5
Q
What is lossless compression
A
reduces file size a bit
6
Q
give an advantage of lossless compression
A
Data lost can be restored
No loss in quality
7
Q
Give a disadvantage of lossless compression
A
Storage size isnt reduced much
