Cambridge IGCSE · 0478 · Paper 1 · Computer systems
Computer Science 0478/12 Feb/March 2022 past paper
Cambridge IGCSE Computer Science (0478) Paper 1 (Computer systems), variant 2, Feb/March 2022: the question paper and its official mark scheme, 7 questions worth 75 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 7
- Marks
- 75
- Grade A from
- 44
File names: 0478_m22_qp_12 · 0478_m22_ms_12
Grade thresholds for 0478/12 Feb/March 2022
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 |
|---|---|---|---|---|---|---|
| 44 | 34 | 24 | 20 | 17 | 13 | 9 |
Topics in this paper
Which syllabus chapters 0478/12 Feb/March 2022 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Data Transmission | 2 | 31 |
| The Internet and its Uses | 1 | 16 |
| Software | 1 | 10 |
| Boolean Logic | 1 | 7 |
| Automated and Emerging Technologies | 1 | 7 |
| Data Representation | 1 | 4 |
Questions in 0478/12 Feb/March 2022
- Question 1
A computer stores data in binary form. Binary numbers can be represented as hexadecimal and denary numbers. (a) Convert the 8-bit binary number 01010101 to denary. Working space (b) Convert the binary number 11000000 to hexadecimal. Working space (c) Convert …
- Question 2
Nadia creates a digital image for a school project. (a) Give one example of an image format. (b) Describe how a digital image file is stored by a computer. (c) Nadia compresses the digital image file before emailing it to …
- Question 3
(a) Tick (3) to show which logic gates will give an output of 1 for the given inputs A and B. Inputs AND OR NAND NOR XOR …
- Question 4
Pradeep uses his personal computer to complete work at home. (a) Pradeep uses a mouse and a keyboard to control the computer. (i) Complete the descriptions of the principles of operation of a mouse and a keyboard using the most …
- Question 5
A holiday company has a website where customers can create accounts and can book and pay for holidays. (a) The website is written in Hypertext Markup Language (HTML). Give two examples of HTML structure and two examples of HTML presentation. …
- Question 6
A business uses a closed-circuit television (CCTV) system that starts recording when motion is detected. It stops recording after two minutes if no further motion is detected. The system uses a motion sensor and a microprocessor. Describe how the motion …
- Question 7
Ishani is a software developer who is creating a new computer game. (a) Ishani uses an interpreter and a compiler at different stages of the game creation. (i) Explain when it is most appropriate for Ishani to use an interpreter. …