This is an example page. It differs from a blog article because it always stays in the same place and (in many themes) appears in the navigation menu. Many people start with an Information page that presents them to visitors to the site. A presentation like:

Bye! I am a cyclist messenger by day, aspiring actor by night and this is my website. I live in L.A., I have a big dog named Jack, and I like piña colada. (And take the rain)

...or something like this:

The XYZ Aggeggi Company was founded in 1971 and has since provided the public with high quality gadgets. Located in Fantasilandia, XYZ employs over 2,000 people and realizes all sorts of fantastic contraption for the community of Fantasilandia.

As a new WordPress user, you should go into your own Wall to delete this page, and create new ones for your content. Have fun!