Template style is a feature introduced in Joomla 2.5 that allows users to assign different template styles to individual menu items. By default, Joomla! assigns a template style to all menu items upon installation. A yellow star indicates the default template style in use. A default template style can be partially or completely overridden by assigning different template styles to the desired menu items in order to obtain a different look for their respective pages. A template style can be assigned to menu items one of two ways. Template manager Extensions ? Template Manager Editing a menu item under Menus ? Menu Name ? Menu item Reference: http://docs.joomla.org/Glossary
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 Inline Frame (also called an Iframe) into the web site layout template.
Stands for Structured query language. The language used to create SQL queries to access and manipulate databases. Includes DDL (data-definition language that manages table and index structure) and DML (data manipulation lan- guage, the subset of SQL used to add, update and delete data).