@parados,
True the size of the computer has nothing to do with the answer, however Bill Gates as one of if not the richest man in the World, might well have computer parts that neither you or I will ever have, as his company does still invent hardware and software. The entire story of this person is recorded on this computer, or at least more than you can comprehend, as you are missing the point. The question really centers around how the data was retrieved after 10,000 years? You can assume however that this computer, is not from when Gates was born, but that it is current state of the art.