title: Parallelism: Memory system that gives the illusion of being large, cheap and fast
body: <p>My professor mentioned in the class that there are two ways in which we can  create  a  memory  system  that  gives  the  illusion  of  being  large,cheap  and  fast?</p>
  
  <p>The first one being - Memory Hierarchy
  and second one - Parallelism.</p>
  
  <p>I wanted to know how parallelism plays a role in making such an illusion. </p>