Learner Description: This lesson is designed for beginning Digital Electronics students in a high school setting.

Have you ever wondered how a computer works? How about that cell phone in your pocket? Believe it or not, there is no magic involved! Even though it may seem magical, these devices work by controlling electron outputs using Logic Gates. With these gates, electrons can be controlled to give specific outputs as desired. By working through this activity, you and your expert group will teach the rest of your team about the different logic gates available.

Instructions: You will begin by splitting into two teams across the class. There will be four people in each expert group. Count off from one to four and meet up with the rest of your group members. Your number determines which expert group you are in. Work in your expert group to learn about your assigned logic gate. Each member should choose an answer to search. After all of the expert groups have finished then everyone returns to the home team. Each expert teaches the rest of the team about their logic gate.

Answer the following questions by visiting the links provided for your expert group.

  1. How does the logic gate assigned to your group control electrons?
  2. What does the truth table of your gate look like?
  3. What does the symbol used for your gate look like?
  4. What is the chip number assigned to your gate?
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Group 3 INVERTER Gate

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