Using subprograms (Edexcel GCSE Computer Science): Flashcards

Self-contained code block that performs a specific task within a larger program

Written once, used many times in same or other programs

Functions already part of the programming language

print() or len()

Functions that need to be imported before use

random.randint() or math.floor()

Custom subprograms created for specific needs

Using a subprogram without knowing how it works inside

Making subprograms work with different input values

Enables generalisation by sending different values

Breaks large programs into smaller manageable chunks

Fix code in one place, not throughout entire program