Some promotional material from Burroughs, up to 1956:
Here’s a capture or two of the console of the UDEC II
And here’s another photo, from Ed Thelen’s site (technical detail within):
And the E101 plugboard programmable, “suitable for engineering scientific and commercial problems of medium complexity”
See also previously:
Computer or Lite Brite? – Burroughs E101
And also see also