Cambridge IGCSE · 0478 · Paper 1 · Computer systems
Computer Science 0478/13 Oct/Nov 2025 past paper
Cambridge IGCSE Computer Science (0478) Paper 1 (Computer systems), variant 3, Oct/Nov 2025: the question paper and its official mark scheme, 6 questions worth 75 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 6
- Marks
- 75
- Grade A from
- 41
File names: 0478_w25_qp_13 · 0478_w25_ms_13
Grade thresholds for 0478/13 Oct/Nov 2025
The minimum raw marks Cambridge set for each grade on this component (out of 75). Thresholds change every session and variant, so always compare your score with the paper you actually sat.
| A | B | C | D | E | F | G |
|---|---|---|---|---|---|---|
| 41 | 31 | 22 | 18 | 14 | 11 | 8 |
Topics in this paper
Which syllabus chapters 0478/13 Oct/Nov 2025 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Data Transmission | 2 | 26 |
| The Internet and its Uses | 1 | 16 |
| Boolean Logic | 1 | 14 |
| Software | 1 | 12 |
| Data Representation | 1 | 7 |
Questions in 0478/13 Oct/Nov 2025
- Question 1
A flower shop has a room that has an air-conditioning system. It is used to keep the room at a constant temperature for storing flowers. The owner uses a keypad to set the temperature for the room. (a) Tick (✓) …
- Question 2
A computer with a Von Neumann architecture has a central processing unit (CPU) that carries out the fetch-decode-execute (FDE) cycle. (a) Give the name of the first register that is used in the fetch part of the cycle. (b) The …
- Question 3
Data is split into packets before it is transmitted across a network. (a) The diagram shows a packet with three sections. Complete the diagram by writing the name of each section of the packet. Write an example in each section …
- Question 4
A cyber security company specialises in security solutions that help prevent hackers being successful. (a) Identify two security solutions that can be provided to help prevent hackers being successful. Explain how each solution helps prevent hackers being successful. Solution 1 …
- Question 5
Text, images and sound are represented as binary to be processed by a computer. (a) Complete the table by writing the missing terms and descriptions about representing text, images and sound as binary. Term Description character set This is the …
- Question 6
A computer game is programmed to use artificial intelligence (AI) to create the movements and actions of the computer-controlled characters in the game. (a) Describe what is meant by AI. (b) Explain how the AI can be used to improve …
Other Computer Science papers from Oct/Nov 2025
- 0478/11 Computer systems
- 0478/12 Computer systems
- 0478/21 Algorithms, programming & logic
- 0478/22 Algorithms, programming & logic
- 0478/23 Algorithms, programming & logic