Logic gates

Question 1

Answer 1

OR gate

The output is 1 if the either inputs are 1.

Question 2

Answer 2

NAND gate

The output is 1 if the the inputs are NOT both 1.

1 0 : 1

1 1 : 0

0 1 : 1

1 0 : 1

Question 3

Answer 3

NOT gate

The output is 1 when the input is 0.

Question 4

Answer 4

AND gate

The output will be 1 if both inputs are 1

Question 5

Answer 5

NOR gate

The output is 1 if NOT (INPUT A OR INPUT B) are 1.

So basically, if both are 0.