2.1.2 Binary Logic

BA2 breakdown Binary Code by applying Logic Gates


In a nutshell...

The computer uses electronic circuits to store one of two values using a switch - the switch is either on (1) or off (0)

Please open "Binary Logic" from O:\ICT\GCSE Computing and be prepared to answer the questions!

 

 

TASKS FOR TODAY:

• Truth Tables

 

 

Please open "2.1.2 Binary Logic - Test your knowledge" from O:\ICT\GCSE Computing

• Draw a Truth Table for each of the following Boolean expressions:
• NOT(A OR B)
• NOT(A) OR NOT(B)
• A AND NOT(B)
• A AND NOT(B OR C) 
• Draw the logic circuits for each of the expressions above
• Draw the truth tables for A AND (B OR C) and for  (A AND B) OR (A AND C)
• Calculate 3x(5+^) and 3x5 + 3x6
• What do you notice?
• Complete the Binary Logic activity sheet from the past 3 lessons

EXT:

1. Draw a Logic Circuit for A OR (B AND C) OR D
2. How many rows must the truth table have?
3. Complete the truth table
4. De Morgan's law says NOT(B OR C) is the same as NOT(B) AND NOT(C). Show this is true by completing the truth tables
5. The NAND gate is an important type of gate and is used to create a circuit called a flip-flop. Investigate what is a flip-flop, what does it do and why is it important?