All components also are used in the administrator area of your website. In addition to the ones listed here, there are components in the administrator that do not have direct front end displays, but do help shape your site. The most important ones for most users are Media Manager Extensions Manager Menu Manager Global Configuration Banners continue reading : Administrator Components
Articles Category Module
This module allows you to display the articles in a specific category. Help {loadposition articlescategoryload}
Content
The content component (com_content) is what you use to write articles. It is extremely flexible and has the largest number of built in views. Articles can be created an edited from the front end, making content the easiest component to use to create your site content. Help
Who’s Online
The Who’s Online Module displays the number of Anonymous Users (e.g. Guests) and Registered Users (ones logged in) that are currently accessing the Web site. Help {loadposition whosonlineload}