title: Rubygems, Bundler and RVM confusion
body: <p>I read "<a href="https://stackoverflow.com/questions/4361645/relationships-between-rubygems-bundler-and-rvm">Relationships between Rubygems, Bundler, and RVM</a>" before asking it again. </p>
  
  <p>Well, there are many questions like this, but people who answered say they work with Rubygems, RVM and Bundler, and they have not explained how each of these work in isolation. </p>
  
  <p>I am really confused with how the three work in isolation when we are installing gems. Please do not tell me how you work, which will help me, but I won't learn what is happening when we play with them.</p>
  
  <p>My confusion can be broken down into these questions. Where is a gem installed when:</p>
  
  <ol>
  <li>I just have Rubygems (without RVM or Bundler)?</li>
  <li>Rubygems and RVM are installed?</li>
  <li>Rubygems, RVM and Bundler are installed?</li>
  </ol>
  
  <p>Please help me understand this stuff with either resources on the web or by your detailed answers.</p>