Modules are a larger 'catch all' than components. Where components add functionality to the Joomla! core framework, modules add functionality that allows the user to interact with parts of the system.
Other types of modules are those that can 'contain' code or images within your site.
In this recipe, we'll look at all aspects of a module.
Login to your Administrator Console.
Click Extensions | Install/Uninstall.
Once you are in here, you'll have a few options to choose from:
There are three methods to install a module, in this section we'll focus on the first method. We'll examine the other two in a moment.
Click Browse… and find the file.
Click Upload File & Install.
Once you successfully installed the module, Joomla! will indicate this with this message: