As I described above: "the multiplication operation is performed by modulating the analog input signal going through the floating gate transistor by the charge

As I described above: "the multiplication operation is performed by modulating the analog input signal going through the floating gate transistor by the charge on the floating gate (weight)." The circuit is the single transistor in this case. Cellular neural networks were proposed long ago, for example, and they're digital What is so inherently digital about cellular networks? Can you provide a link to an implementation of a cellular net in digital hardware? How the weights are stored? Where the multiplication happens?