With the 3-switch set at the bottom you will apply power to each diode logic gate individually. And they are (from left to right) OR NOR AND NAND. This is my first entry into logic, and I thought it would be fitting to start with the most basic derivativeand this will probably be my most straightforward design. Operate input control with the 2-switch set at the base of each gate. I'm pretty sure they all work and will coincide with their respective truth tables, but as I said I'm a logic newbie so if you encounter any discrepancies please let me know..