This study notes covers GCSE Data Types within Data Types for GCSE Computer Science. Revise Data Types in 3.2 Programming for GCSE Computer Science with 19 exam-style questions and 10 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 5 of 9 in this topic. Use this study notes to connect the idea to the wider topic before moving on to questions and flashcards.
GCSE Data Types
| Data Type | Description | Examples |
|---|---|---|
| Integer | Whole numbers (positive or negative) | -5, 0, 42, 1000 |
| Real / Float | Numbers with decimal places | 3.14, -0.5, 19.99 |
| String | Text (sequence of characters) | "Hello", "123", "A" |
| Character | Single letter, digit, or symbol | 'A', '7', '?' |
| Boolean | True or False only | true, false |
Practice questions for Data Types
Which data type is most appropriate for storing a student's age?
A programmer is creating a system to track gym members. State the most appropriate data type for each of the following and justify your choice: (a) the member's surname, (b) the number of visits this month, (c) whether the membership is active.