Summary
Components are the basis of any Joomla CMS template. Usually they are located in the central part of a template. The Joomla Component control is used to output dynamic data from Joomla CMS.
The Joomla Component control is used to add the placeholder to a template. Only one Joomla Component control can be used in each template.
Usage
In a sample template you may find the Joomla Component control by clicking on the page and you'll see the Component in the Path located at the top of the page, as shown on the screenshot below.
If Joomla Component does not exist on the page, you may add it via Add Control >> Other >>Joomla Component or Insert >> Other >> Joomla Component in the Top Menu. Usually the Joomla Component is added inside a column of a Row with the Columns control.
Only one Joomla Component may be added to a page.
As mentioned above, the Joomla Component control outputs Joomla page content, which may include articles, blog, list of categories, search results, different forms, etc. No Joomla page content is output in a template without the Joomla Component control present.
For example, there's a menu link in Joomla of "Category Blog" type:

In a Themler template, the Blog is displayed with the help of the Joomla Component control:

If you want to create a static page and do not want to output Joomla content on the page, then remove Joomla Component control from the page template.
### Summary Components are the basis of any Joomla CMS template. Usually they are located in the central part of a template. The **Joomla Component** control is used to output dynamic data from Joomla CMS. The **Joomla Component** control is used to add the placeholder to a template. Only one **Joomla Component** control can be used in each template. ### Usage In a sample template you may find the **Joomla Component** control by clicking on the page and you'll see the Component in the Path located at the top of the page, as shown on the screenshot below. If **Joomla Component** does not exist on the page, you may add it via **Add Control** >> **Other** >>**Joomla Component** or **Insert** >> **Other** >> **Joomla Component** in the Top Menu. Usually the **Joomla Component** is added inside a column of a Row with the Columns control. Only one **Joomla Component** may be added to a page. As mentioned above, the **Joomla Component** control outputs Joomla page content, which may include articles, blog, list of categories, search results, different forms, etc. No Joomla page content is output in a template without the **Joomla Component** control present. For example, there's a menu link in Joomla of "Category Blog" type: !JoomlaMenuItem.png! In a Themler template, the Blog is displayed with the help of the **Joomla Component** control: !ThemlerJComponent.png! If you want to create a static page and do not want to output Joomla content on the page, then remove **Joomla Component** control from the page template.