DESC: Instead of assembling a notebook from many minor parts, the MacBook was reinvented from just one: a solid-aluminum unibody enclosure. It gets full credit for making MacBook thinner, lighter, and even more stunning. But it’s not all beauty. Because of the unibody, this MacBook is also durable. It was designed to take on your world. So slip it into your backpack or briefcase and pull it out wherever you go — it’s impressive in any setting.