Users and Permissions

Users: Three basic types of user categories include, and are assigned by the site administrator:
Administrators – (with privileges to do everything or almost everything on the server)
Teachers — (with privileges to only teach, or to teach and create courses)
Students — (with privileges to enroll and engage in courses)
Guests — (with few privileges, but may be allowed to view some courses and information.)

Your Moodle site administrator can grant or modify certain user privileges on the system, creating variations of each user permission category, including giving others some administration roles.