A1: In class we showed that one can use NAND gates to create all of other the basic gates AND, OR, NOR, NOT. Repeat this exercise for the NOR gate. That is, draw the diagrams of all basic gates using only NOR gates. A2: Draw the diagram of an XOR gate using only the diagrams of the NOR gates that you found in the previous exercise. Do not simplify the design, just translate the diagrams directly. Note: for this problem you must start with the diagram presented in class and shown on slide 20 of the student slides. You may not use any other schematic of an XOR gate as your starting point. You must then replace each gate in that schematic with your NOR gate equivalent. XOR ... is equivalent to... - AB + AB A B - AB + AB