The CDC6600 and its family members are part of the computer industry history. A decade before the Cray 1, the members of the CDC6000 family were not only expensive and the most powerful systems at the time of introduction. They were also lean and wonderful architectures ! The elegance was also conveyed in several publications (many by CDC), where all the necessary knowledge was explained from the ground up. All you needed to know was supplied, clearly laid out, not just hints for efficient programming. Basically, you could rebuild your own computer by reading these books. 50 years later, they are invaluable reminders and tools, we can see where the computer industry comes from and realise that it is not that hard to do it ourselves, too.
Via HackerNews. This is an amazing resource.