2.4 – Boolean logic

Question 1

What is the operator ^

Answer 1

Exponentiation
(to the power of)

Question 2

The operator: AND

Answer 2

Works by only returning TRUE if both values being compared are true

Question 3

What is Binary Data Representation?

Answer 3

Patterns of 1s and 0s used to represent all forms of data in a digital format

Question 4

Operator: DIV

Answer 4

Integer division
Returns a whole number only from a division without rounding
eg. 10 DIV 3 would give 3

Question 5

What is a Logic Diagram?

Answer 5

A method of showing Boolean Logic in a diagram using a set of symbols called logic gates
(the circuits, including AND OR NOT)

Question 6

Operator: MOD

Answer 6

Modulus
Returns the remainder left over from integer division
eg. 10 MOD 3 would give 1

Question 7

Operator: NOT

Answer 7

NOT works by returning FALSE if the input is TRUE and vice versa

Question 8

Operator: OR

Answer 8

OR returns TRUE as long as either value being compared is TRUE

Question 9

What is a Truth Table?

Answer 9

The output of a logic gate/circuit for all possible combinations of inputs

Question 10

What would the value of x be in:
x = “6” + “5”

Answer 10

65
They are both strings so are joined together instead of being added
6 + 5 = 11, “6” + “5” = 65

Question 11

What is the value of x when:
x = 6 - 5

Answer 11

1

Question 12

What is the value of x when:
x = 6*5

Answer 12

30
* is a multiplier

Question 13

What is the value of x when:
x = 6/5

Answer 13

1.2
/ is a divide operator