>1</td><td class='highlight'>1</td></tr>
</table>

<p>To activate the 1st, 2nd and 4th bits:</p>

<table border='1'>
  <tr><td>0</td><td>0</td><td>0</td><td>0</td><td class='highlight'>1</td><td>0</td><td class='highlight'>1</td><td class='highlight'>1</td></tr>
</table>

<pre>
unsigned char num = 0;
num |= (1 << 0);
num |= (1 << 1);
num |= (1 << 3);
</pre>

<p>To deactivate the 1st, 4th and 6th bits:</p>

<table border='1'>
  <tr><td class='highlight'>1</td><td class='highlight'>1</td><td>0</td><td class='