I toured NORAD inside Cheyenne Mountain back in 1990 or '91, back when you had to submit background information to apply for the tour, and I saw that computing gear. It was amazing to see buildings on giants springs and caverns with Diesel locomotives in them for back-up power.
Voyager 1? http://voyager.jpl.nasa.gov/mission/didyouknow.html http://history.nasa.gov/computers/Ch6-2.html