What is Joomla module?
In contrast to the Joomla components, Joomla modules are a somewhat lighter form of extensions which enhance the web site’s functionality.
Joomla modules are presented in the form of small objects whose contents can be displayed anywhere in the template web page. Frequently Joomla modules are provided as a supplement to the Joomla components allowing to display information from the component differently.
With modules Joomla it is very easy to place advertisement in any part of the web page. There are ready-to-use Joomla modules such as: authorization form module, display a list of the latest news module, etc. You can also create your own modules and display with them any information.