Components
In Joomla!, a Component is a major part of the overall functionality of the CMS. It is generally an application, or process, that enables content or information to be created and controlled. A Component sits on top of, but integrates closely with, the Joomla! Framework itself.
Typical examples of the types of Component available within the Joomla! core installation are:
- Content
- Banners
- Administration
- News Feed
- Front Page
- Web Links
- Menu
Some of these add functionality to the Front-end, of Joomla! whilst others, the Back-end. This list is by no means exhaustive as Joomla! typically installs more than 40 Components on a standard installation. The output from Components, that run in the Front-end, can usually be found in the main content area of the displayed page. Those for the Back-end will generally be shown in the main content area of of the Administrator workspace.
Info found at Joomla.com





