Logic Gates

Question 1

What are the three basic logic gates?

Answer 1

AND, OR, and NOT gates.

Question 2

What does an AND gate do?

Answer 2

It only outputs 1 if both inputs are 1. Otherwise, it outputs 0.

Question 3

What does an OR gate do?

Answer 3

It gives an output of 1 if at least one input is 1.

Question 4

What does a NOT gate do?

Answer 4

It flips the input. If the input is 1, the output is 0; if input is 0, output is 1

Question 5

What is the output of an AND gate with inputs 1 and 0?

Answer 5

0 (because both inputs must be 1 for the output to be 1)

Question 6

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

Answer 6

1 (because at least one input is 1)

Question 7

What is the output of a NOT gate with input 0?

Answer 7

1

Question 8

AND Gate – Truth Table

Answer 8

A | B | A AND B |
| 0 | 0 | 0 |
| 0 | 1 | 0 |
| 1 | 0 | 0 |
| 1 | 1 | 1 |

Question 9

OR Gate – Truth Table

Answer 9

A | B | A OR B |
| 0 | 0 | 0 |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 | 1 | 1 |

Question 10

NOT Gate – Truth Table

Answer 10

A | NOT A |
| 0 | 1 |
| 1 | 0 |