6 - 28 Primitive data types, binary and hexadecimal

Question 1

What an integer?

Answer 1

a whole number such as -25, 0, 3, 28679

Question 2

What is a real/float?

Answer 2

a number with a fractional part such as -13.5, 0.0, 3.142, 100.001

Question 3

What is a Boolean?

Answer 3

a Boolean variable can only take the value TRUE or FALSE

Question 4

What is a character?

Answer 4

a letter, number or special character typically represented in ASCII, such as a, A, 4, ? or %. Note that the character “4” is represented differently in the computer from the integer 4 or the real number 4.0

Question 5

What is a string?

Answer 5

anything enclosed in quote marks is a string, for example “Peter”, “123”, or “This is a string”. Either single or double quotes are acceptable.