ong></td>
    <td>Data passed into procedures of functions. Parameters can be passed using 
      registers (very fast), RAM locations (good for big data items) or the Stack 
      (useful if recursion is needed).</td>
  </tr>
  <tr valign="top"> 
    <td><strong>Peripherals</strong></td>
    <td>Hardware plugged into the computer. Anything from a keyboard or mouse 
      to a power station or chemical works.</td>
  </tr>
  <tr valign="top"> 
    <td><strong>Pointers</strong></td>
    <td>In the