Before you can understand how to operate Joomla!, allow me to explain the basic principles that underlie the Joomla! Content Management System.  Content Management System (CMS) contains the terms content and management (administration) that imprecisely refer only to a system that administers content. Such a system could be a board and a piece of chalk (menu or school chalkboard), or it could be something like Wikipedia (the free online encyclopedia at http://www.wikipedia.org), or an online auction house such as eBay (http://www.ebay.com/). In all these cases, content is administered; at times even for a large number of participants as in the case of the last two examples. These participants play a major role with the CMS, on one hand as the administrators, and on the other hand as users.