[Solved Past Paper] May/June 2025 Paper 23 IGCSE 0478 0984 | O-Level 2210 | Computer Science

A full walkthrough to this IGCSE/O-Level past paper from the May/June 2025 series

Recommended to watch at 1.5x speed and use mark scheme to see full list of acceptable answers too

https://pseudocode.pro/past-papers

00:24 Question 1: flowchart, input, assignment, range check, validation, selection, loop, average, count

9:41 Question 2: pseudocode, arithmetic operators, DIV, MOD

10:35 Question 3: pseudocode, algorithm, bubble sort, descending, errors, loop, 1D array, flag, while loop, procedure, swap, parameter, call, global variable, local variable

23:36 Question 4: integer, input, range check, validation, abnormal test data, extreme test data, length check, pseudocode

28:55 Question 5: database, SQL, structured query language, data type, integer, real, text, date, Boolean, char

31:20 Question 6: pseudocode, algorithm, substring, length, 1D array, remove vowels, trace table

42:04 Question 7: logic gate, logic circuit, NOR, Boolean logic, logic expression, truth table

49:23 Question 8: pseudocode, 15 marker, video library system, 2D array, two dimensional array, initialise, for loop, linear search, user menu, copy array, input, output, range check, validation

Note: syntax used in the videos and the following websites follows the Cambridge IGCSE (0478/0984), O-Level (2210) and A-Level (9618) qualifications

Cambridge Pseudocode Executor: https://pseudocode.pro
Cambridge Assembly Executor: https://asmcode.pro
Cambridge Boolean Logic https://booleanlogic.pro