Cambridge IGCSE ยท 0478 ยท Paper 1 ยท Computer systems
Computer Science 0478/13 May/June 2015 past paper
Cambridge IGCSE Computer Science (0478) Paper 1 (Computer systems), variant 3, May/June 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
- 46
File names: 0478_s15_qp_13 ยท 0478_s15_ms_13
Grade thresholds for 0478/13 May/June 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 |
|---|---|---|---|---|---|---|
| 46 | 38 | 31 | 27 | 22 | 19 | 16 |
Topics in this paper
Which syllabus chapters 0478/13 May/June 2015 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Hardware | 3 | 30 |
| The Internet and its Uses | 2 | 16 |
| Boolean Logic | 1 | 10 |
| Data Transmission | 2 | 9 |
| Data Representation | 1 | 5 |
| Software | 1 | 5 |
Questions in 0478/13 May/June 2015
- Question 1
(a) State what is meant by the terms: Parallel data transmission Serial data transmission (b) Give one benefit of each type of data transmission. Parallel data transmission Benefit Serial data transmission Benefit (c) Give one application of each type of โฆ
- Question 2
(a) State what is meant by the term USB. (b) Describe two benefits of using USB connections between a computer and a device. 1 2
- Question 3
(a) Complete the truth table for the following logic circuit: โฆ
- Question 4
Choose six correct terms from the following list to complete the spaces in the paragraphs below: โข encryption โข file name โข firewall โข HTML tags/text โข IP address โข protocol โข proxy server โข SSL certificate โข web server โฆ
- Question 5
Five storage devices are described in the table below. In column 2, name the storage device being described. In columns 3, 4, or 5, tick (๏ผ) to show the appropriate category of storage. โฆ
- Question 6
(a) Viruses, pharming and phishing are all examples of potential Internet security issues. Explain what is meant by each of these three terms. Virus Pharming Phishing (b) An online bank requires a client to supply an 8-digit code each time โฆ
- Question 7
(a) One of the key features of von Neumann computer architecture is the use of buses. Three buses and three descriptions are shown below. Draw a line to connect each bus to its correct description. Bus Description address bus this โฆ
- Question 8
An alarm clock is controlled by a microprocessor. It uses the 24 hour clock. The hour is represented by an 8-bit register, A, and the number of minutes is represented by another 8-bit register, B. (a) Identify what time is โฆ
- Question 9
Draw a line to connect each question to the correct answer. Question Answer What is the denary (base 10) equivalent to the hexadecimal digit E? 8 If 1 GB = 2x then what is the value of X? 12 How โฆ
- Question 10
Five statements about interpreters and compilers are shown in the table below. Study each statement. Tick (๏ผ) to show whether the statement refers to an interpreter or to a compiler. Statement Interpreter Compiler takes one statement at a time and โฆ
Other Computer Science papers from May/June 2015
- 0478/11 Computer systems
- 0478/12 Computer systems
- 0478/21 Algorithms, programming & logic
- 0478/22 Algorithms, programming & logic
- 0478/23 Algorithms, programming & logic