Exercise

 

On the diagrams below draw in the eight possible combinations for switches A, B and C.

  

 

  

 

  

 

Fill in the Truth Table.

Use 0 for switch is open or lamp D is off. Use 1 for switch is closed or lamp D is on.

A

B

C

D

0

0

0

 

0

0

1

 

0

1

0

 

0

1

1

 

1

0

0

 

1

0

1

 

1

1

0

 

1

1

1

 

 

What logic gate does this correspond to?.

    

 

 

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