Data compression is the lowering of the number of bits which need to be saved or transmitted and this process is really important in the web hosting field due to the fact that information located on hard disks is usually compressed to take less space. You will find various algorithms for compressing data and they provide different effectiveness based upon the content. A lot of them remove only the redundant bits, so no data can be lost, while others erase unneeded bits, which leads to worse quality when the data is uncompressed. This process uses plenty of processing time, therefore a web hosting server has to be powerful enough in order to be able to compress and uncompress data instantly. An instance how binary code can be compressed is by "remembering" that there're five sequential 1s, for example, as an alternative to storing all five 1s.