Software Design and Development - Data types and structures

Question 1

In programming, what are data types?

Answer 1

Data types identify the type of data held by a variable:
•Character
•String
•Integer
•Real
•Boolean

Question 2

In programming, what is a character?

Answer 2

A character is a single letter, number or symbol. Examples: A ! 7
The character data type is used to store one single character only

Question 3

In programming, what is a string?

Answer 3

A string is a group of characters held together. To store more than one character, use the string data type. String is used more often than character. A firstname would be held as a string e.g.Hannah

Question 4

In programming, what is an integer?

Answer 4

An integer is a whole positive or negative number. To store a whole number, use the Integer data type. E.g.
14
-21
223

Question 5

In programming, what is a real?

Answer 5

A real number is a number that includes a decimal value. The real data type is often called ‘Single’ when using a programming language. Real numbers are used to store positive or negative numbers that include a decimal value

e. g.
21. 54
- 54.12423

Question 6

In programming, what is a boolean?

Answer 6

The Boolean data type is used to store either true or false