title: what is the Vertical and Horizontal distribution?
body: <ul>
  <li><strong>Vertical distribution</strong> :
  Distributed processing is equivalent to organizing a <code>client-server  application</code> as a <code>multitiered architecture</code>
  . Place <em>logically</em> different components on different machines.</li>
  <li><strong>Horizontal distribution</strong> :
  Distribution of the <code>clients and servers</code> - more common in modern
  architecture.
  A <code>client</code> or <code>server</code> may be <code>physically</code> split up into <code>logically</code>
  equivalent parts, but each part is operating on its own share of the
  complete data set, thus balancing the load.</li>
  </ul>
  <hr />
  <p>I tried to understand the difference between the <code>vertical</code> and <code>horizontal</code>.  what's the meaning of &quot;<code>logically</code>&quot; and &quot;<code>physically</code>&quot; ?...but I can't! Does anybody know?</p>