Digital Logic Fundamentals Unit 2 – Fundamental Logic Elements
Exercise 2 – OR/NOR Logic Functions
EXERCISE OBJECTIVE
When you have completed this exercise, you will be able to determine the operation of an OR
and a NOR logic gate, You will verify your results by generating truth tables for each function.
EXERCISE DISCUSSION
- The output of an OR gate is high when any input is high.
- The output of a NOR gate is low when any input is high.
- A high input will disable an OR or a NOR gate.
- A low input (two-input gate) will enable an OR or a NOR gate.
- OR/NOR gate outputs complement each other.