Cambridge IGCSE · 0478 · Paper 1 · Computer systems
Computer Science 0478/11 Oct/Nov 2021 past paper
Cambridge IGCSE Computer Science (0478) Paper 1 (Computer systems), variant 1, Oct/Nov 2021: the question paper and its official mark scheme, 11 questions worth 75 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 11
- Marks
- 75
- Grade A from
- 44
File names: 0478_w21_qp_11 · 0478_w21_ms_11
Grade thresholds for 0478/11 Oct/Nov 2021
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 | 36 | 28 | 23 | 17 | 12 | 7 |
Topics in this paper
Which syllabus chapters 0478/11 Oct/Nov 2021 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Software | 3 | 22 |
| Hardware | 3 | 17 |
| Boolean Logic | 1 | 11 |
| Automated and Emerging Technologies | 1 | 9 |
| Data Transmission | 1 | 6 |
| Data Representation | 1 | 5 |
| The Internet and its Uses | 1 | 5 |
Questions in 0478/11 Oct/Nov 2021
- Question 1
Binary is a number system that is used by computers. (a) Tick (3) one box to show whether binary is a base-2, base-10 or base-16 number system. Tick (3) Base-2 Base-10 Base-16 (b) Hexadecimal and denary are number systems that …
- Question 2
Magda has a mobile telephone. She uses the touch screen on her telephone to send emails to her customers. The touch screen breaks, stopping Magda from using it to type her emails. (a) Identify one other input device that would …
- Question 3
Five statements are given about the error-checking methods checksum, check digit and parity check. (a) Tick (3) to show whether each statement applies to checksum, check digit or parity check. Some statements may apply to more than one error-checking method. …
- Question 4
Georgia is a wedding photographer. She wants to store 10 photographs on a USB flash memory drive for a customer. Each photograph is 100 pixels wide and 50 pixels high. The photographs are 8-bit colour photographs. (a) Calculate the total …
- Question 5
Tamaz stores confidential data on his computer. He uses the Internet regularly and is concerned about his data being viewed by unauthorised people. He currently has one software method to stop his data being viewed, which is a password. He …
- Question 6
Six statements are given about the role of components in the Central Processing Unit (CPU). (a) Tick (3) to show whether each statement applies to the Memory Address Register (MAR), Memory Data Register (MDR) or Program Counter (PC). Some statements …
- Question 7
(a) Tick (3) one box to identify if an internal Solid State Drive (SSD) is an example of primary, secondary or off-line storage. Justify your choice. Tick (3) Primary Secondary Off-line Justification (b) Describe the operation of an SSD and …
- Question 8
Victoria develops a computer game to sell on a gaming website. She writes her program using English-like statements. (a) State which type of programming language Victoria is using. (b) Victoria uses two different types of translator when creating the program …
- Question 9
A washing machine uses sensors and a microprocessor to control the washing cycle of clothes. (a) A sensor is used in each of the given tasks. Identify one suitable sensor that would be used for each task. Each sensor given …
- Question 10
Consider the following logic statement: …
- Question 11
The table contains descriptions relating to web pages and the Internet. Complete the table with the correct terms for the given descriptions. Term Description the language used to create a web page the type of software application used to display …
Other Computer Science papers from Oct/Nov 2021
- 0478/12 Computer systems
- 0478/13 Computer systems
- 0478/21 Algorithms, programming & logic
- 0478/22 Algorithms, programming & logic
- 0478/23 Algorithms, programming & logic