At Macworld Expo in January 2005, miniaturization was on Steve Jobs’s mind. Since the world was in the midst of iPod fever, most of the focus was on the tiny iPod Shuffle. But 21 years ago, Apple’s ...

When it comes time to get a new Mac, you have three options: Trade in your old Mac, sell it, or hold onto it. Macs tend to maintain a good amount of value but some Macs are more in demand than others.