Those of us who do important work, for both the household and the workplace, on a computer know the importance our files can hold. They might be our finances, our school work, or simply the Christmas shopping list all planned out. Either way, we hope to protect them and keep them from corruption as much as we can. Since the early days of home computing we relied on removable disks and drives (remember the Zip Drive?) to backup and store our files to protect against computer crashes and viruses that may corrupt them.