All ten sections of the 0478 syllabus - the computer systems theory that Paper 1 examines, and the algorithms, programming, databases and Boolean logic of Paper 2 - explained, diagrammed and self-marked. Free, no login, works on any device.

Work through them in order or jump straight to what you need tonight. Each topic page teaches the content, then tests it.
The Paper 1 half of the 0478 syllabus - data representation, data transmission, hardware, software, the internet and its uses, and automated and emerging technologies.
The Paper 2 half of the 0478 syllabus - algorithm design and problem-solving, programming, databases and Boolean logic.
Knowing the content and scoring marks are two different skills. These tools train the second one.
Every command word Cambridge uses, what it actually means, and what the examiner wants to see. Includes a trainer that shows you the difference between a 1-mark and a 2-mark answer to the same question.
OpenEvery question on the site in one place. Filter by topic, command word, marks or AO1/AO2, then build a set and mark yourself against the scheme.
OpenReal student answers that score badly, the exact reason each one loses marks, and the version that scores. This is where most marks are quietly thrown away.
OpenTen random questions. Get a score, a breakdown by area, and a focused follow-up set built from whatever you were weakest on.
OpenYour Learn / Practise / Test / Mastered status for every topic, saved in this browser. Shows exactly what is left.
OpenPick the time you actually have. The plan changes to fit it.
No packs to buy, no subscription and no login. Every topic, every question and every diagram is open to any student who needs it.
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