The contents of your computer and phone are organised electricty and are fragile and prone to disappearence. One must always have a number of copies of files they wish to retain. In english this is called “backing up” which is too abstract and guilty of misdirection. Backing up your car is not even a little like backing up your files in your computer. Superduplicate is a far better, illustrative word. So be sure to superduplicate your device, lest the power goes out.