IGCSE0478_s25_qp_21Written

IGCSE Computer Science 0478/21 — May/June 2025 past paper

Paper 2 Algorithms, Programming and Logic (variant 1)

Question paper Mark scheme

Question 4b is highlightedBack to it PDF preview

For the whole May/June 2025 seriesExaminer report Grade thresholds

Grade boundaries for 0478/21

Grade	A	B	C	D	E	F	G
Marks	49	37	26	21	17	13	9

Minimum raw mark out of 75, from Cambridge's May/June 2025 grade thresholds. Cambridge sets A* only for the whole subject.

Also in May/June 20250478/11Paper 1 Computer Systems 0478/12Paper 1 Computer Systems 0478/13Paper 1 Computer Systems 0478/22Paper 2 Algorithms, Programming and Logic 0478/23Paper 2 Algorithms, Programming and Logic

Paper 2 Algorithms, Programming and Logic — other years0478/22May/June 2026 0478/21May/June 2026 0478/23May/June 2026 0478/22February/March 2026 0478/21October/November 2025 0478/22October/November 2025 0478/23October/November 2025 0478/22May/June 2025 All Computer Science papers →

About this past paper

This is the Cambridge IGCSE Computer Science (0478) Paper 2 Algorithms, Programming and Logic past paper from the May/June 2025 exam series. The official mark scheme is here too, so you can check every answer the way an examiner would. The examiner report for the series explains where candidates lost marks. The grade thresholds show the marks needed for each grade.

Cambridge's reference for this paper is 0478/21/M/J/25; the files are named 0478_s25_qp_21 and 0478_s25_ms_21.

Download it free with no account, or practise it online and have your answers marked against the mark scheme. See every IGCSE Computer Science past paper, from 2019 to the latest series.