Every time Apple releases a new product, the company makes a video that explains how it is produced. Here is a video that shows how company produced a new powerful professional computer Mac Pro, which is extremely compact and looks weird for the desktop.
[youtube]http://www.youtube.com/watch?v=IbWOQWw1wkM[/youtube]
As you can see, the device is made from a single piece of aluminum, processed, ground, polished, and then anodized. All holes drilled in it, then his insides are assembled by hand.