</font><font color="blue" class="small">( Of course, that coming from someone that doesn't understand binary. I don't even know what that is. )</font>
Let me try the 30 second lesson:
We use a numbering system that is base-10, meaning that we have digits 0-9. When counting up, once we reach 9 and have to increment again, we cycle back to 0 and increment the next colum to the left (e.g. 10)
Binary is base-2, meaning that the only valid digits are 0-1 (as in computers only talk 1's and 0's), so when counting up, once we reach 1 and have to increment again, we cycle back to 0 and increment the next column to the left. So 10 in binary is really 2 in base-10.
<font class="small">Code:</font><hr /><pre>
BASE 2 BASE 10
----------------------
0 0
1 1
10 2
11 3
100 4
101 5
110 6
111 7
1000 8
1001 9
1010 10
</pre><hr />