When you think design + computers, you may be forgiven for thinking only of Apple. Design is about thinking things through, and working in a disciplined, methodical manner with a clear and unabiguous focus in mind. The final stylistic outcome can vary dramatically.
A counterpoint to the Apple's "look at me" style is IBM/Lenovo's long-standing Thinkpad line of laptops.
Those who know me will know I have long been a fan of the solid, non-flashy, "let's get down to business" black slabs that are the Thinkpads. In fact, I am about to move to my fourth one in 9 years!
Here's an interesting overview, with pictures of the design thinking behind the Thinkpad.