Data Types (Cambridge (CIE) O Level Computer Science)

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A data type is a classification of data into groups according to the kind of data they represent
Computers use different data types to represent different types of data in a program
The basic data types include:

Data type	Used for	Pseudocode	Example
Integer	Whole numbers	INTEGER	10, -5, 0
Real	Numbers with a fractional part (decimal)	REAL	3.14, -2.5, 0.0
Character	Single character	CHAR	'a', 'B', '6', '£'
String	Sequence of characters	STRING	"Hello world", "ABC", "@#!%"
Boolean	True or false values	BOOLEAN	True, False

It is important to choose the correct data type for a given situation to ensure accuracy and efficiency in the program
Data types can be changed within a program, this is called casting

Name and describe the most appropriate programming data type for each of the examples of data given. Each data type must be different

[6]

Data: 83

Data: [email protected]

Data: True

Answers

Data type name: Integer [1]
Data type description: The number is a whole number [1]
Data type name: String [1]
Data type description: It is a group of characters [1]
Data type name: Boolean [1]
Data type description: The value is True (or could be False) [1]

to absolutely everything:

the (exam) results speak for themselves:

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