All they really consist of are magnetic representations of 1's and 0's. They exist only in an ephemeral way, yet more and more people rely on them for their work, relaxation, and entertainment. They're all the same in many ways, but can be as different as night and day. They can't be touched, and they don't have any mass, yet they take up valuable space, and can become cluttered and unwieldy. We're talking about files here. More accurately, computer files. As we become more reliant on computer technology, these bits and pieces of virtual information get more valuable, not to mention more numerous. And just like anything else that tends to pile up, computer files need to be managed and organized in order for them to be accessible and useful.