Now we're into post 19 of the "Top Question" of Super User in the Super User blog. Please post and vote for your favorite question for this week.
Please post any question that you feel is of worth and the reason why. Try not to promote your own questions or answers for publicity sake. We are looking for questions that are of similar par to those selected in the Super User Contest. If you like a posted question then vote it up. Each week we are going to try to post about the question and its contents.
Here's an interesting one, this time related to hardware. It's a very simple question (I don't really think it's stupid in any way), but once you think about it, it leaves room for a really detailed answer.
As a part of regular Windows maintenance, I defragment my hard drive. But why does the hard drive fragment on NTFS and FAT* systems? Apparantly ext* does not, why is this? Should I also be defragmenting my USB drives?