As you make your Joomla! site you will control the details of the display using options also referred to as parameters. Options control everything from whether the author's name is displayed to who can view what to the number of items shown on a list.
Default options for each component are changed using the Options button on the component toolbar.
Options can also be set on an individual item, such as an article or contact and in menu links.
If you are happy with how your site looks, it is fine to leave all of the options set to the defaults that were created when your site was installed. As you become more experienced with Joomla you will use options more.
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Your installation includes sample data, designed to show you some of the options you have for building your website. In addition to information about Joomla! there are two sample "sites within a site" designed to help you get started with building your own site.
The first site is a simple site about Australian Parks. It shows how you can quickly and easily build a personal site with just the building blocks that are part of Joomla. It includes a personal blog, weblinks, and a very simple image gallery.
The second site is slightly more complex and represents what you might do if you are building a site for a small business, in this case a Fruit Shop.
In building either style site, or something completely different, you will probably want to add extensions and either create or purchase your own template. Many Joomla users start by modifying the templates that come with the core distribution so that they include special images and other design elements that relate to their site's focus.
With Joomla you can create anything from a simple personal website to a complex ecommerce or social site with millions of visitors.
This section of the sample data provides you with a brief introduction to Joomla concepts and reference material to help you understand how Joomla works.
When you no longer need the sample data, you can can simply unpublish the sample data category found within each extension in the site administrator or you may completely delete each item and all of the categories.
The Joomla! content management system lets you create webpages of various types using extensions. There are 5 basic types of extensions: components, modules, templates, languages, and plugins. Your website includes the extensions you need to create a basic website in English, but thousands of additional extensions of all types are available. The Joomla! Extensions Directory is the largest directory of Joomla extensions.