Let's first explore the elements of the default Joomla! example site home page. This will give you a good overview of the different modules that Joomla! features out of the box.
The example site that's part of the default installation is just one of the many types of sites you can build with Joomla!. As you can see, the example is focused on presenting quite a lot of (some might say, too much) information, the home page pulling the reader towards the content through intro texts, banners, link lists, a poll, several menus, and so on. It's very much focused on text; the only image you'll see is a banner ad at the bottom.
The previous picture of the home page shows the following elements: