I recently put a question up about computers that had more than one CPU. In hindsight I see this question is very broad, and that's why it has attracted a lot of short answers. And so it has been protected.
What I had in mind was a computer which contained two or more general purpose CPUs. Many of the answers talk about computers which have and CPU and a DSP, and one comment mentions the Copper chip from the Amiga chipset so show that the question could at least define what I meant a bit better.
And many answers also describe computers which have two CPUs but could only run one at a time, such as the DEC Rainbow 100 or the SuperPET.
If I edit this question now, I could invalidate some of these answers. Should I go ahead and do that though?