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What subprograms do

What subprograms do

Schematic of a Python main program calling built-in, library and user-devised procedures and functions, with arrows showing calls and return values

The diagram shows a main program calling several types of subprogram. A subprogram is a named block of code that does one specific job.

Built-in and user-devised subprograms Lesson

  1. GCSE
  2. /Computer Science
  3. /Built-in and user-devised subprograms

Step-by-step lessons on Edexcel GCSE Computer Science Built-in and user-devised subprograms. Each one builds up to exam-style questions. Build strong foundations in binary, logic and core programming constructs before moving on to the more complex algorithm design and evaluation questions.

Lessons