1.4 Logic Gate

What is the output of an OR gate if the inputs are 1 and 0?

• 0
• 1
• OFF
• 2

A NOT gate has…

• Two inputs and one output
• One input and one output
• One input and two outputs
• Two inputs and two outputs

A logic state can only be….

• On or 1
• Off or 1
• 1 or 0
• In and Out

What logic gate is this?

• AND
• OR 
• NOT
• TO

What gate is this table for?

• AND
• OR
• NOT
• NOR

A truth table lists every possible combination of input and the resulting output

• True
• False

What is the output Y of this logic circuit if A = 1, B = 1, and C = 1

• 0

• 1

Logic statement for $Y_1$  

•  $A\cdot B$  
  

•  $A+B$  

•  $A\cdot B\cdot C\cdot D$  
  

•  $C\cdot D$  

•  $A+B+C+D$  

Logic statement for $Y_2$  

•  $B+C$  
  

•  $C+D$  

•  $A\cdot B\cdot C\cdot D$  
  

•  $C\cdot D$  

•  $A+B+C+D$  

Logic statement for $Y_{ }$  

•  $B+C$  
  

•  $C+D$  

•  $A\cdot B\cdot C\cdot D$  
  

•  $C\cdot D$  

•  $A+B+C+D$