This is a typical HTML document format.
<HTML> means that this tag tells your HTML editor that this is a HTML document.
<HEAD> gives an header to your page.
<TITLE> is not required that much.
<BODY> gives the body of the document.
To see how this document will look in a web page, click here.
Actually you will only see the body until you add a heading tag. To learn about heading tag, go here.