Logic Gates & Truth Tables

Learning Objectives


In this post you will predict the output of logic gates circuits by completing truth tables. First you need to learn the basic truth tables for the following logic gates:

  • AND Gate
  • OR Gate
  • XOR Gate
  • NOT Gate

First you will need to learn the shapes/symbols used to draw the four main logic gates:

Logic Gate Truth Table
AND-GateAND AND Gate Truth Table
OR-GateOR OR Gate Truth Table
XOR-GateXOR XOR Gate Truth Table
NOT-GateNOT truth-table-not-gate

Your Task


Your task is to complete the truth tables for the following diagrams. You can click on the Truth Tables to change the values in the X column.

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