Sometimes I don't understand this site.
The answer below was downvoted without comment.
I am not a points hound, so am not concerned, but AFAIK my answer, which directly addressed the question by an obviously non-technical user, provided a clear factual answer in non-technical terms. I posted it to provide additional detail, and because I did not feel the other answer would be particularly helpful to the OP.
The other answer was upvoted, and provided a good link to technical information, but did not really answer the question.