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GCSE Computer Science · key term
A collection of reusable subprograms that programmers can call to perform tasks rather than writing all the code themselves.
Used by Edexcel
Specification 3.3.1, 6.6.1 · Paper 1, Paper 2
Revise: Low-Level and High-Level LanguagesHigh-level languages also provide libraries: collections of ready-made subprograms. An image-editing application can use a specialised library to perform image operations instead of requiring the programmer to build every operation from scratch.
A collection of pre-written, reusable code that a program can import and use.
Link a language characteristic to the task: direct hardware control makes low-level code suitable for a device driver; libraries and readable code make high-level languages suitable for rapid application development.
Do not claim that high-level programs run unchanged on every computer. Portability depends on suitable language support and any libraries or devices the program needs.
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