interesting, it appears you are right. When looking for more info as to what was actually used I found this link : http://www.decodesystems.com/cosmac/ http://

interesting, it appears you are right. When looking for more info as to what was actually used I found this link : http://www.decodesystems.com/cosmac/ http://www.decodesystems.com/cosmac/, and http://www.cpushack.com/space-craft-cpu.html http://www.cpushack.com/space-craft-cpu.html, that both give a little more detail as to what was used on the Voyager and Viking missions. EDIT: (another link: http://history.nasa.gov/computers/Ch6-2.html http://history.nasa.gov/computers/Ch6-2.html)