compression

define compression

compression is reducing the size of a file so that it takes up less space on secondary storage.

what is lossy compression?

lossy compression is when data is lost in order to reduce the size of a file on secondary storage.

true or false?

lossy compression is irreversible.

true.

what does irreversible mean?

irreversible means something that cannot be undone or reversed to its original state.

define lossless compression.

lossless compression is when data is encoded in order to reduce the size of a file on secondary storage.

true or false?

lossless compression can be used on all data types without losing quality.

true.

define encoding.

encoding is the process of converting data into a specific format or code.

true or false?

lossy compression can greatly reduce file size but at the expense of losing quality.

true.