title: Get latest dates from an array per object group in Powershell
body: <p>I have an array <em>$data</em> :</p>
  
  <pre><code>PS&gt; $data
  Datum                  User                   Computer                                      
  -----                  ---------              --------                                      
  10/06/2013 13:10:56    geb1@TESTDOMAIN.COM    DC1$                                          
  10/06/2013 13:09:25    geb2@TESTDOMAIN.COM    DC2$                                          
  10/06/2013 10:05:13    geb2@TESTDOMAIN.COM    DC2$                                          
  7/06/2013 16:32:47     geb1@TESTDOMAIN.COM    DC1$    
  </code></pre>
  
  <p>I want to get the latest dates from the $data array for each computer like this:</p>
  
  <pre><code>PS&gt; $result
  Datum                  User                   Computer                                      
  -----                  ---------              --------                                      
  10/06/2013 13:10:56    geb1@TESTDOMAIN.COM    DC1$                                          
  10/06/2013 13:09:25    geb2@TESTDOMAIN.COM    DC2$                                          
  </code></pre>
  
  <p>I really couldn't get this result. Could you please help me on this?</p>