Cambridge IGCSE · 0478 · Paper 1 · Computer systems
Computer Science 0478/12 May/June 2026 past paper
Cambridge IGCSE Computer Science (0478) Paper 1 (Computer systems), variant 2, May/June 2026: the question paper and its official mark scheme, 7 questions worth 75 marks. Free to open, no account needed.
- Questions
- 7
- Marks
- 75
File names: 0478_s26_qp_12 · 0478_s26_ms_12
Topics in this paper
Which syllabus chapters 0478/12 May/June 2026 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Data Representation | 2 | 32 |
| Hardware | 2 | 14 |
| Data Transmission | 1 | 10 |
| The Internet and its Uses | 1 | 10 |
| Software | 1 | 9 |
Questions in 0478/12 May/June 2026
- Question 1
A smartwatch has a built-in microphone that allows a person to use voice commands to control the smartwatch. (a) Tick (3) one box to show whether a microphone is an input, output, process or storage device. A input B output …
- Question 2
A computer has a central processing unit (CPU). (a) State the role of the CPU. (b) The memory address register (MAR) and the memory data register (MDR) are two registers built into the CPU. Give two other registers that are …
- Question 3
A video streaming service uses hexadecimal to display error codes when problems occur with their videos. (a) Tick (3) one box to show which statement is incorrect about why hexadecimal is used to display the error codes. A Hexadecimal is …
- Question 4
An odd parity byte check is used to check for errors in data that is transmitted from a computer to a printer. (a) Three bytes of data need to be transmitted. Give the correct parity bit that would be added …
- Question 5
Cyber security threats are a problem when using the internet. (a) Complete the table by writing the missing terms and descriptions about cyber security threats. Each term and description must be different. term description An attack where a third party …
- Question 6
A student has an application (app) on their smartphone that can be used to identify the name of a flower. The student opens the app and takes a photograph of a flower. The photograph is stored as an image. The …
- Question 7
A programmer uses a low-level language to write a program for a vending machine. (a) State what is meant by a low-level language. (b) Identify two examples of a low-level language. …
Other Computer Science papers from May/June 2026
- 0478/11 Computer systems
- 0478/13 Computer systems
- 0478/21 Algorithms, programming & logic
- 0478/22 Algorithms, programming & logic
- 0478/23 Algorithms, programming & logic