Cambridge IGCSE · 0478 · Paper 1 · Computer systems
Computer Science 0478/12 Oct/Nov 2016 past paper
Cambridge IGCSE Computer Science (0478) Paper 1 (Computer systems), variant 2, Oct/Nov 2016: the question paper and its official mark scheme, 12 questions worth 75 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 12
- Marks
- 75
- Grade A from
- 49
File names: 0478_w16_qp_12 · 0478_w16_ms_12
Grade thresholds for 0478/12 Oct/Nov 2016
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 |
|---|---|---|---|---|---|---|
| 49 | 41 | 34 | 28 | 23 | 21 | 19 |
Topics in this paper
Which syllabus chapters 0478/12 Oct/Nov 2016 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Software | 3 | 15 |
| Data Representation | 3 | 14 |
| Boolean Logic | 1 | 14 |
| Hardware | 2 | 13 |
| The Internet and its Uses | 2 | 12 |
| Data Transmission | 1 | 7 |
Questions in 0478/12 Oct/Nov 2016
- Question 1
(a) Give two reasons why a programmer would choose to write code in a low-level language. …
- Question 2
State four functions of an operating system. …
- Question 3
(a) Explain what is meant by: (i) Serial data transmission (ii) Parallel data transmission (b) A computer in a factory is connected to a printer. The printer is located in an office 1 km away from the factory. Identify which …
- Question 4
Nine bytes of data are transmitted from one computer to another. Even parity is used. An additional parity byte is also sent. The ten bytes arrive at the destination computer as follows: parity bit bit 2 bit 3 bit 4 …
- Question 5
A computer uses an 8-bit register. The 8-bit register contains binary integers. (a) Write the denary (base 10) value represented by: …
- Question 6
Four computer terms and eight descriptions are shown below. Draw lines to connect each computer term to the correct description(s). Computer term Description Arithmetic and logic unit (ALU) Control unit Random access memory (RAM) Read only memory (ROM) Data can …
- Question 7
(a) Complete the truth tables and name the single logic gate that could replace each logic circuit: …
- Question 8
Identify whether the four statements about file compression are correct by writing TRUE or FALSE in the following table. Statement TRUE or FALSE MIDI files store the actual music notes in a compressed format JPEG files are examples of lossless …
- Question 9
(a) Explain what is meant by a denial of service attack. (b) Name and describe two other potential security threats when using the Internet. Security threat 1 Description Security threat 2 Description
- Question 10
(a) Describe what is meant by HTML. (b) The following URL is typed in: http://www.cie.org.uk/ComputerSciencePapers This URL is composed of three parts. State the part of this URL that is the: File name Protocol Web server name
- Question 11
A security system is installed in a house. A hexadecimal number is entered to activate or deactivate the alarm. (a) The alarm code is set to hexadecimal number …
- Question 12
Explain the differences between freeware and free software.
Other Computer Science papers from Oct/Nov 2016
- 0478/11 Computer systems
- 0478/13 Computer systems
- 0478/21 Algorithms, programming & logic
- 0478/22 Algorithms, programming & logic
- 0478/23 Algorithms, programming & logic