My interest in logic gates that did not make use of transistors started about two years ago. After about six months of hair pulling, yelling and cursing I was able to create the entire Boolean logic set using just diodes and resistors. Granted the key diode is a LED and the key resistor is a CdS Photo Resistor. Granted I do not expect anyone to think that this processor build will be fast or practical but is part of a grand "What If" idea I had and Light Logic was born. Now it is time to put those logic gates to work and see if a working processor can be constructed this way. So as to not confuse my senior moment prone brain, I will keep the logic gates down to just NAND and NOT except for the diode only AND gates used in the 4 to 16 line decoder on the Hex display module. The other Light Logic gates I have made will work but do not always play nice with each other and inverting logic just seems to work better for me.