Extensible markup language that defines a format that is both human-readable and machine-readable. XML files are used in Joomla for installation files, options, and JForm forms.

It stands for Extensible hypertext markup language and is an application of XML. Most Joomla pages are based on XHTML.

A “what you see is what you get” editor.

A Joomla module that allows you to “wrap” directly other Web sites for display on your Joomla site at a specific location as determined by the Module Position and the Pages Items section. The web page is inserted as an…

The program that uses client/server models. It provides the communication between the browser on the client device and the server where the website files and database are stored. Joomla works with two leading web servers: Apache and Microsoft IIS (Microsoft's…

One of the elements of the model-view-controller design pattern used for Joomla core components. The view is responsible for generating output sent to the browser by the component. The base API class we use for views is called JView.

A link in the back-end that allow you to see what the front-end would look like while you’re still working in the back-end.

Joomla uses groups as a method of assigning permissions. Default groups: Public, Guest, Manager, Administrator, Registered, Author, Editor, Publisher, Publisher, Super Users. However, you can create unlimited user-defined Groups.

An article that doesn’t belong to any category.

Template overrides are a way of changing the way Joomla shows something without changing the basic or core Joomla system. A template override is a layout file that is placed in a special subfolder of the template. If found, it…