Actually, Samsung sells pretty much everything a company could possibly sell, even weapons. I know you mean Samsung Consumer Electronics, but it's a tricky example because the network effects (or lack thereof) between all of Samsung's subsidiaries are not obvious.

Also unlike Samsung, Apple depends on OS X as their developer OS. The whole WWDC was praising developers for helping iOS take off, and I think rightly so.

Of course, Apple does not depend on the Mac Pro.