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2018

Cambridge IGCSE · 0478 · Paper 2 · Algorithms, programming & logic

Computer Science 0478/21 May/June 2018 past paper

Cambridge IGCSE Computer Science (0478) Paper 2 (Algorithms, programming & logic), variant 1, May/June 2018: the question paper and its official mark scheme, 6 questions worth 50 marks, with the grade thresholds. Free to open, no account needed.

Questions
6
Marks
50
Grade A from
31
Open the question paperMark scheme

File names: 0478_s18_qp_21 · 0478_s18_ms_21

Grade thresholds for 0478/21 May/June 2018

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.

ABCDEFG
312315121074

Topics in this paper

Which syllabus chapters 0478/21 May/June 2018 tested, by marks. Each chapter links to every past-paper question on it.

ChapterQuestionsMarks
Scenario Question120
Programming212
Algorithm Design and Problem-Solving210
Databases18

Questions in 0478/21 May/June 2018

  1. Question 1Scenario Question · 20 marks

    (a) All variables, constants and other identifiers should have meaningful names. (i) You recorded information for the estimate of the cost of building a computer in Task 1. Give a data structure that you created for Task 1, its name, …

  2. Question 2Algorithm Design and Problem-Solving · 7 marks

    (a) Write an algorithm to input 1000 numbers. Count how many numbers are positive and how many numbers are zero. Then output the results. Use either pseudocode or a flowchart. (b) Give one change you could make to your algorithm …

  3. Question 3Programming · 8 marks

    The global trade item number (GTIN-8) barcode has seven digits and a check digit. This pseudocode algorithm inputs seven digits and calculates the eighth digit, then outputs the GTIN-8. DIV(X,Y), finds the number of divides in division for example DIV(23,10) …

  4. Question 4Algorithm Design and Problem-Solving · 3 marks

    A programmer has written a routine to check that prices are below $10.00. These values are used as test data. 10.00 9.99 ten Explain why each value was chosen. 10.00 9.99 ten

  5. Question 5Programming · 4 marks

    Explain the difference between the programming concepts of counting and totalling. Include an example of a programming statement for each concept in your explanation.

  6. Question 6Databases · 8 marks

    A database table, PERFORMANCE, is used to keep a record of the performances at a local theatre. Show Number Type Title Date Sold Out SN091 Comedy An Evening at Home 01 Sept Yes SN102 Drama Old Places 02 Oct No …

Other Computer Science papers from May/June 2018

Questions students ask

Where can I get the 0478/21 May/June 2018 mark scheme?
Open the mark scheme above - it is the official Cambridge scheme for this exact paper (0478_s18_ms_21), and on a wide screen it sits beside the question you are reading.
What was the grade threshold for an A in 0478/21 May/June 2018?
31 marks out of 50, a C needed 15.
Which topics came up in 0478/21 May/June 2018?
Mostly Scenario Question, Programming, Algorithm Design and Problem-Solving. The full list is in the table above.
Do I need an account to open 0478/21 May/June 2018?
No. Every paper opens for free without signing in. A free account also saves your pen marks and records your score against the grade thresholds.