Boolean Logic

Question 1

What is a Boolean expression?

Answer 1

Expression that evaluates to True or False

Question 2

What are the three Boolean operators?

Answer 2

AND OR NOT

Question 3

What is the AND operator?

Answer 3

True if both conditions are true otherwise False

Question 4

What is the OR operator?

Answer 4

True if at least one condition is true otherwise False

Question 5

What is the NOT operator?

Answer 5

Reverses the truth value

Question 6

What is a truth table?

Answer 6

Table showing output for all input combinations

Question 7

What is a logic gate?

Answer 7

Electronic component performing Boolean operations

Question 8

What are the main logic gates?

Answer 8

AND OR NOT NAND NOR XOR XNOR

Question 9

What is the output of a NAND gate?

Answer 9

Opposite of AND

Question 10

What is the output of a NOR gate?

Answer 10

Opposite of OR

Question 11

What is the output of an XOR gate?

Answer 11

True if inputs are different

Question 12

What is the output of an XNOR gate?

Answer 12

True if inputs are the same

Question 13

How is a Boolean expression simplified?

Answer 13

Using laws like De Morgan’s and algebraic manipulation

Question 14

What is a compound Boolean expression?

Answer 14

Expression combining multiple operators

Question 15

What is a conditional statement?

Answer 15

Decision based on a Boolean expression

Question 16

What is truth table testing?

Answer 16

Checking all possible input combinations for correctness

Question 17

What is the use of logic gates in computers?

Answer 17

Form the basis of circuits and decision-making

Question 18

What is De Morgan’s law?

Answer 18

Rules for simplifying NOT over AND/OR expressions

Question 19

What is the difference between hardware and software logic?

Answer 19

Hardware uses gates Software uses Boolean operations

Question 20

Why are XOR gates used in computers?

Answer 20

For addition and comparison operations

Question 21

What is a logic circuit?

Answer 21

Combination of gates performing a function

Question 22

What is sequential logic?

Answer 22

Output depends on current and previous inputs

Question 23

What is combinational logic?

Answer 23

Output depends only on current inputs

Question 24

What is a flip-flop?

Answer 24

Memory element storing one bit

Question 25

What is a multiplexer?

Answer 25

Device selecting one of many inputs as output

Question 26

What is a decoder?

Answer 26

Device converting binary to single output line