Isolinear
They look just like Isoliner Chips from Star Trek. Other than being green boards rather than crystaline. Perhaps they should package them in translucent plastic and complete the illusion.
I just remember my theory some 25 years ago that software would start getting supplied as thin storage chips, and you would have a row of slots on your PC that you would plug them into (merely keeping the settings and documents on the HDD). Granted, I was picking up the idea from the IBM PCjr, but these are more what I imagined them looking like. The advent of laptops & extra-small form factor machines would have destroyed the concept anyway.