Components are larger extensions that produce the major content for your site. Each component has one or more "views" that control how content is displayed.In the Joomla! administrator there are additional extensions suce as Menus, Redirection, and the extension managers.
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
Search
The search component proviedes basic search functionality for the information contained in your core components. Many third part extensions also can be searched by the search component. Help
Weblinks
Weblinks (com_weblinks) is a component that provides a structured way to organize external links and present them in a visually attractive, consistent and informative way. Help
