Up until a few years ago people had managed their data backups and computer files storage manually. They had to purchase an external hard-drive or a USB, copy their files and update them frequently to make sure nothing gets lost or neglected. Since the remote online storage services appeared, more and more users have adopted the advanced cloud backup technologies conducted by companies such as SugarSync, Dropbox, 4Shared, Google Drive and many other. Those companies have kept developing and made a huge progress launching the sync feature. This feature, actually, free us all from the tiresome responsibility of backing up new materials to all the different devices we use. ...