Cambridge IGCSE ยท 0478 ยท Paper 2 ยท Algorithms, programming & logic
Computer Science 0478/22 Oct/Nov 2019 past paper
Cambridge IGCSE Computer Science (0478) Paper 2 (Algorithms, programming & logic), variant 2, Oct/Nov 2019: the question paper and its official mark scheme, 7 questions worth 50 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 7
- Marks
- 50
- Grade A from
- 35
File names: 0478_w19_qp_22 ยท 0478_w19_ms_22
Grade thresholds for 0478/22 Oct/Nov 2019
The minimum raw marks Cambridge set for each grade on this component (out of 50). Thresholds change every session and variant, so always compare your score with the paper you actually sat.
| A | B | C | D | E | F | G |
|---|---|---|---|---|---|---|
| 35 | 27 | 20 | 16 | 12 | 8 | 4 |
Topics in this paper
Which syllabus chapters 0478/22 Oct/Nov 2019 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Programming | 5 | 41 |
| Databases | 1 | 6 |
| Algorithm Design and Problem-Solving | 1 | 3 |
Questions in 0478/22 Oct/Nov 2019
- Question 1
(a) All variables, constants and other identifiers must have meaningful names. (i) Describe the data structures that you have used to store the data for the concrete slabs in Task 1, include the name, data type and use for each โฆ
- Question 2
An algorithm has been written in pseudocode to select a random number using the function RandInt(n), which returns a whole number between 1 and the argument n. The algorithm then allows the user to guess the number. Number RandInt(100) TotalTry โฆ
- Question 3
(a) The flowchart checks the lengths of a batch of 10 ropes. For the batch to be accepted 90% of the lengths need to be between 24.9 and 25.1 metres. START END Is Count โฆ
- Question 4
Four validation checks and four descriptions are shown. Draw a line to connect each validation check to the correct description. Validation Check Description Range check Checks that some data is entered. Presence check Checks for a maximum number of characters โฆ
- Question 5
A programmer writes a program to weigh baskets of fruit in grams, keeping a total of the weight and counting the number of baskets. The total weight is stored in a variable Total and the number of baskets is stored โฆ
- Question 6
Explain why constants, variables and arrays are used in programming. Constants Variables Arrays
- Question 7
A database table, SALES, is used to keep a record of items made and sold by a furniture maker. Item number Order number Notes Amount Status CH001 1921 Smith โ six dining chairs 6 Delivered TB003 1921 Smith โ large โฆ
Other Computer Science papers from Oct/Nov 2019
- 0478/11 Computer systems
- 0478/12 Computer systems
- 0478/13 Computer systems
- 0478/21 Algorithms, programming & logic
- 0478/23 Algorithms, programming & logic