Backing up is also called "archiving." For small backups, you can drag and drop files and folders from the hard disk to the backup medium whenever you wish. However, you have to be aware of the ...
But we will wish we had when the inevitable happens. Admit it, many of us don’t back up our important files because we’re too busy, don’t know how, or just don’t care enough to do it.
Your backed-up files are accessible from any internet-connected device, even if your computer completely dies or gets stolen.