Computer (not a computer)

I remember owning one of these "digital computer kits" from Radio Shack. Even as a child, I could tell that its billing as a digital computer was an exaggeration. It didn't have any active components; it was basically a wire-switches-to-lightbulbs-in-a-complicated-way kit, and you could sort of do things that vaguely resembled logic, with inserts over the lightbulbs with stuff written on them. You could build things that were more like real logic circuits with the generalized electronics kits.