title: What is Entity Framework? Why we use it?
body: <p>I will start a new project in couple of days which is based on <code>ASP.NET</code> <code>MVC3</code> and I don't have enough experience in Web Development.<br>
  I just want to know about <code>Entity</code> Framework. What is <code>Entity</code> Framework? Why we use it?
  and also want to know about <code>Object Relational Mapping</code>. How is it connect with entity framework?<br>
  I've googled but did not get exact idea about it.<br>
  I'm very eager to know what's basic concept behind all those things?   </p>