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IGCSE Computer Science

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Tips

Paper 1 and Paper 2 want different revision, so do not alternate between them in one session. Paper 1 rewards short, frequent recall practice on precise definitions. Paper 2 needs long sittings where you write a whole program or trace a whole algorithm without breaking concentration.

For Paper 2, write pseudocode and code by hand, then type it in and run it. The gap between "this looks right" and "this runs" is what past papers are uniquely good at exposing.

Practise trace tables until they are mechanical. They appear reliably, they are marked step by step so partial credit is generous, and the errors are almost always the same one: not updating a variable on the row where it changed.

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IGCSE, A-Level & AP