title: Namespace or Assembly?
body: <p>I am getting very confused between Namespaces and Assemblies. Are <code>System.Data</code> and <code>System.Web</code> Namespaces or Assemblies?</p>
  
  <p>I have noticed these are called namespaces and at the same time they are present in <code>GAC_32</code> folder. So what exactly are they?</p>