title: multi-seat vs. thin client multi-user systems
body: <p>I want to understand the theoretical background of multi-user system (how it works). I found we can implement the idea using two methods. 
  1.Multi-seat 
  2.Thin client
  What are the differences between them.
  And should we install OS in thin client while using in multi-user system. I found thin-clients may not have hard disks.
  Please help me out..</p>