An Administrator account is just a regular user account that's been given access to sudo so that you can do some, or even all of the things that root can do without actually needing to know the root password. In fact, in some Linux distributions such as Ubuntu, there isn't any root password by default and all administrative tasks are done that way. Fedora requires you to set a root password at installation, but once your system is up and running, you can, if you prefer, make your regular account an Administrator and never use the root password again. Personally, I prefer not to do things that way, but it's simply a matter of taste.