Each user has an individual account. In your home you may want to create an account for each member of your family. At school you may want to create a different account for each student in a group that shares a Macintosh in the classroom. The administrator can create new user accounts and change system settings that require special privileges. If you are the only user of the Macintosh, you may find it convenient to set a preference to bypass the log in window at startup and log in as the administrator automatically.
Administrator Can modify system configurations and install software.
In this message, I've listed the folders which will be created when you install OS X and added a note about the purpose of each. This folder contains the OS X applications that are available to all users of the computer. Mac OS 9 applications are stored elsewhere as you will see below. This folder is created when OS X is installed on the same physical disk as OS 9, even if it is on a different partition. But, it differs in that they are UNIX files and the average user will never have to access the contents of the folder.