Cambridge IGCSE · 0478 · Paper 1 · Computer systems
Computer Science 0478/13 Oct/Nov 2015 past paper
Cambridge IGCSE Computer Science (0478) Paper 1 (Computer systems), variant 3, Oct/Nov 2015: the question paper and its official mark scheme, 10 questions worth 75 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 10
- Marks
- 75
- Grade A from
- 44
File names: 0478_w15_qp_13 · 0478_w15_ms_13
Grade thresholds for 0478/13 Oct/Nov 2015
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 | 35 | 27 | 22 | 17 | 15 | 13 |
Topics in this paper
Which syllabus chapters 0478/13 Oct/Nov 2015 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Hardware | 6 | 48 |
| The Internet and its Uses | 2 | 19 |
| Data Representation | 2 | 8 |
Questions in 0478/13 Oct/Nov 2015
- Question 1
(a) Name an application which makes use of the following sensors. A different application should be used in each case. Temperature Magnetic field Motion (b) The flowchart on the opposite page shows how a light sensor and microprocessor are used …
- Question 2
Sensors and a microprocessor monitor a car exhaust for high temperature and high carbon monoxide (CO) levels. (a) Describe how the sensors and microprocessor are used to monitor the temperature and CO levels and warn the driver if either is …
- Question 3
A section of computer memory is shown below: Address Contents …
- Question 4
(a) Computer ethics involves a number of different topics. (i) A student made the following statement on an examination paper: “It allows a user to have the freedom to run, copy, change and adapt the software and then pass it …
- Question 5
A security system records video footage. One minute of video requires 180 MB of storage. The recording system can store several hours of video footage. (a) Name and describe a suitable storage device for this recording system. (b) Calculate how …
- Question 6
Passengers fly into an airport from other countries. The airport has a security system that uses: • computers • scanners • digital cameras To gain entry to the country, each passenger must have a passport or identification (ID) card. This …
- Question 7
Name a suitable output device for each of the following applications. A different device should be used for each application. Application Suitable output device Production of one-off photographs of very good quality High volume colour printing of advertising flyers Production …
- Question 8
Four input devices are shown in the table below. Give an application which makes use of each device and state a reason why the device is appropriate for that application. Your application must be different in each case. Input device …
- Question 9
MP3 file compression reduces the size of a music file by …
- Question 10
Choose five correct terms from the following list to complete the spaces in the sentences below: • cypher text • encryption algorithm • encryption key • firewall • plain text • proxy server • symmetric encryption is a security system. …
Other Computer Science papers from Oct/Nov 2015
- 0478/11 Computer systems
- 0478/12 Computer systems
- 0478/21 Algorithms, programming & logic
- 0478/22 Algorithms, programming & logic
- 0478/23 Algorithms, programming & logic