3 PC License

If one has NIS 2010 with 3 PC license, is that 1 license per computer or per validation process?

Like lets say I install NIS 2010 on my PC, go through the whole activation process. But then for some reason, I go ahead an uninstall NIS 2010 from my PC. And I mean a full complete uninstalltion, including using NRT. So there are no Norton/symantec files on my PC.

Then I  do a clean reinstall of NIS 2010 on the same PC and go through the validation process.

In doing that, did I wind up using 2 of the 3 PC license?