Computer Science GCSE
Scope of variables
What Scope of variables means in Computer Science GCSE, as defined for Pearson Edexcel.
Definition of Scope of variables
Check what you remember
Read the wording for your board, then hide it and explain Scope of variables in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
A global variable can be read or changed by any subprogram, while a local variable is accessible only within the subprogram it is declared in.
Topics that use Scope of variables
- Subprograms (Pearson Edexcel GCSE)
Related terms
- Appropriate design using parameters and return values
- Global versus local access
- Library subprogram
- Arguments
- Built-in subprogram
- Function
- Lifetime of local variables
- Parameters
Using Scope of variables in the exam
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