Logic Gates

Logic Gates

1. Used to determine whether the Logical switches in the CPU are ON/OFF

2. AND

   • ^
   • BOTH inputs need to be 1 for Output to be on

3. OR

   • V
   • 1 or MORE Inputs to be on for Output to be on

4. NOT

   • ¬
   • The Output is the opposite of the Input

5. Exam Technique

   • Always label input & outputs
   • Draw what's in the brackets first (BIDMAS)
   • Don't forget to draw the circle on the NOT
   • A circle in front of an AND/OR inverts the gate making it a NAND/NOR

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