Backup and Restore

A hard disk can be composed of many things but essentially the only data it holds is a series of 0 (zero's) and 1 (ones) most of what is contained within a hard disk therefore is empty space ie a 0 (zero's) that being the case it should be possible to design an algorithm that takes advantage of this and save only the data needed, well we have news for you such an application is already available.