Which Windows Vista do you need?

There are six main editions of Windows Vista. We're not going to go into the Starter Edition in this article, because there simply isn't that much to say. There is no pricing announced, and you won't find it on store shelves or as an option from major OEMs. It is targeted at large institutions in developing areas—it's the Vista version for a developing-nation government to buy 50,000 licenses for use with aging computers. Since it's not even going to be an option for consumers or businesses, and only serves to complicate matters, we'll cut it from the matrix entirely. That leaves the following Vista editions...