Well, it's an overloaded term (like pretty much every term in software development). But there's good information in this article. In many contexts you should

Well, it's an overloaded term (like pretty much every term in software development). But there's good information in this article. In many contexts you should be thinking in terms of point-samples, not squares or other areas. I think it's not such a great idea to try to simplify the definition of pixel in this article because it distracts from the useful info.