Terminology
access permissions:a set of permissions associated with every file and directory that determine who can read it, write to it, or execute it. Only the owner of the file (or the super-user) can change these permissions.
home directory: the directory you are placed in immediately after you login to the system.
root: the directory located at the top of the Unix file system. It is represented by the "/" (forward slash) character.
file manager: a tool you can use in Windows to organize your files and directories.
WWW document root: the only part of the Dizzy directory structure that the WWW server can see
link: allows other parts of the Dizzy directory structure to be available to Web browsers