A really ancient secret, one of the grey beards I learned a lot from early in my career told me about how he got CV running on an Apple II way back in the day on the cheap. He decapped a DRAM, and carefully stuck a lens on it. They're not just susceptible to cosmic rays; without the package regular old visible light rays can cause bit flips too. If you look at CMOS sensors these days they actually have quite a bit in common with DRAM.
There was a Byte Magazine article by Steve Ciarcia, in Sept 1983, entitled “A 64K-bit dynamic RAM chip is the visual sensor in this digital image camera,” describing how to do exactly this hack. https://archive.org/details/byte-magazine-1983-09/mode/2up
He was able to turn a RAM chip into a camera, allowing the computer to process a video "feed" simply by polling the right bits in RAM. On a device that would normally be considered much too primitive to do any image processing.
