This is an example page. It is different from a blog post because it will stay in one place and will show up in your site's navigation (in most themes). Most people start with an About page that introduces them to potential site visitors. It could say, for example:

Hey! I'm a bike messenger by day, aspiring actor by night, and this is my site. I live in Los Angeles, have an awesome dog named Jack, and I love piña coladas. (And getting caught in the rain.)

...or something like that:

The company XYZ Dingenot was founded in 1971, and since then has been supplying the public with quality dingenotes. Located in Gotham City, XYZ employs over 2,000 people and does all kinds of amazing things for the Gotham community.

As a new WordPress user, you should go to your control panel to delete this page and create new pages for your content. Have fun!