2.2. Universal Gates

Try these first

1. 1.

   What is the function of a NAND gate?

   Hint

   Think about the conditions when it outputs a false signal.

2. 2.

   Describe a key feature of a NOR gate.

   Hint

   Assess the inputs to find the output state.

3. 3.

   What does a NAND gate output when both inputs are false?

   • False
   • True

   Hint

   Consider the definition of NAND.

4. 4.

   True or False: A NOR gate can output true when at least one of its inputs is true.

   • True
   • False

   Hint

   Think about the logic of a NOR gate output.

5. 5.

   Design a full adder circuit using only NAND gates. Explain the layout and logic.

   Hint

   Consider how multiple gates can serve in various capacities as intermediary steps.

6. 6.

   Write the step-by-step Boolean expressions to create an XOR function using only NOR gates.

   Hint

   Think about the key XOR conditions while mimicking them through NOR dynamics.