Computer Systems computer?

This is something I acquired a few weeks ago and I am still unsure what it is.  To be honest, I got it just to see what was inside and see if I could figure out what it was by studying the internals but it is beyond my knowledge.  It is a device from “Computer Systems” as noted on the front panel but I cannot find any further markings.  The only other marking is on the back of the device that states that this is “Serial Number 5”.  I am not sure if it is a peripheral device tester of some sort or if this is actually a front panel for a computer or a computer itself.

It has switches for input and blinking lights for output but it is pre-microprocessor as it’s from 1971 based on the chips inside.  When I find out more I will post but here are pictures.