The predator is being run by a p-roc system and a single board computer. Someone on Pinside asked the question and thought it was a good fact to pass.

Guy asked - "I am intrigued by this single board PC/SSD mounted in the head that you'll be using. Got a link to something similar that can drive the P-ROC?"

Kevin said - "That depends on what you're doing with your pin. If you plan on running PinMame to keep your stock rules available, then you're going to need a fairly strong PC to drive it. If you're planning on simply running your own software all the time, it doesn't take much to run a P-ROC at all. For something off-the-shelf, you can use a BeagleBoard. From the talks I've had with a few P-Roc'ers, the Raspberry Pi doesn't quite make the cut, though, unfortunately."