lossy and lossless compression

Question 1

compression

Answer 1

Compression is the process used to ​reduce the storage space ​required by a file, meaning you can store ​more files​ with ​the same amount of storage space​

Question 2

why is compression important

Answer 2

important for sharing files ​over networks or the Internet​. The larger a file, the longer it takes to transfer and so compressing files increases the number of files that can be transferred in a given time.

Downloading a compressed file over the Internet is ​faster ​than downloading the full version of the file.

Question 3

lossy compression

Answer 3

reduces the size of a file ​while also​ removing some of its information​. This could result in a ​more pixelated​ image or​ less clear​ audio recording.

Question 4

lossless

Answer 4

​reduces the size ​of a file ​without losing any information​.
the original file ​can be recovered ​from the compressed version