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    <td><strong>Backup copy </strong></td>
    <td>Copies of files kept in case of disaster. These should be kept in a secure 
      place away from the computer system they belong to. Important files should 
      be backed up in more than one place. Sod's law applies to back up files. 
      The file you really need is the one you have failed to back up.</td>
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    <td><strong>Base Address </strong></td>
    <td>The start address of an object stored in memo