We store an incredible amount of data on our home computers, laptops and other devices. When you save your photos, documents and other files on your computer they are most often saved and stored on the hard disk drive internally.  This is usually a mechanical device, which actually spins inside your computer (ever wondered why you could hear your computer whirring and clicking?) Unfortunately mechanical items don't last forever and all hard disk drives will fail eventually.  When your hard disk drive fails you can often lose everything you've saved on your computer.  Also, if you have a laptop which gets dropped, it often causes the hard drive inside it to fail, also risking losing all your files.  Of course, you could lose or have a laptop stolen and lose your data that way too!  This is...