There are two categories of data compression. The first reduces the size of a single file to save storage space and transmit faster. The second is for storage and transmission convenience. The ...

Lossless data-compression programs search through documents for redundant or repetitive data and then encode it. For example, a text document may contain 200 empty spaces, 100 instances of the ...

Data compression enables music files to be drastically reduced in size. Music on a compact disc is uncompressed. An average song lasting three minutes requires about 32MB of storage.