title: what is Entity Framework with POCO
body: <p>What is the benefit of using POCO? I don't understand the meaning of Persistence Ignorance, what does this mean? That the poco object can't expose things like Save? I can't wrap my head around this POCO that there's alot of buzz around. </p>
  
  <p>What is the difference with the EF generated entities and POCO?</p>