The purpose for the data backup is so that in the event anything were ever to happen to your computer, for instance if it were to get a virus or something else were to happen that disrupted or even completely deleted any of your files or personal information, you would have the data backup and so you would be able to get all the information back. There are a few different options that you can choose from when it comes to data backup, including online data backup for one because it is so convenient and because it is often free as well. There are many different methods that you can choose to use to backup your computer data, but regardless there are a few things that you are going to require. All that is required to store your information on a drive or disk separate from your computer will depend on the method that you choose. For instance if you operate on a home LAN system, you can transfer your files onto the other computers on the network so that if the computer you use primarily even went down you would have the information still stored on these other computers….