This study notes covers Variables vs Constants within Variables & Constants for GCSE Computer Science. Revise Variables & Constants in Programming for GCSE Computer Science with 15 exam-style questions and 10 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 3 of 6 in this topic. Use this study notes to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 3 of 6
Practice
15 questions
Recall
10 flashcards
Variables vs Constants
| Aspect | Variable | Constant |
|---|---|---|
| Value can change? | Yes - can be reassigned | No - fixed once declared |
| Use for | Scores, counters, user input | PI, VAT rate, fixed values |
| Naming convention | camelCase or snake_case | UPPER_CASE (often) |
| Example | score = 100 | const PI = 3.14159 |