Cambridge A Level · 9618 · Paper 1 · Theory fundamentals

Computer Science 9618/12 May/June 2025 past paper

Cambridge A Level Computer Science (9618) Paper 1 (Theory fundamentals), variant 2, May/June 2025: the question paper and its official mark scheme, 7 questions worth 75 marks. Free to open, no account needed.

Questions: 7
Marks: 75

Open the question paper Mark scheme

File names: 9618_s25_qp_12 · 9618_s25_ms_12

Topics in this paper

Which syllabus chapters 9618/12 May/June 2025 tested, by marks. Each chapter links to every past-paper question on it.

Chapter	Questions	Marks
Communication	1	19
Processor Fundamentals	2	17
Databases	1	16
Ethics and Ownership	1	12
Information representation	1	7
Hardware	1	4

Questions in 9618/12 May/June 2025

Question 1Processor Fundamentals · 9 marks
(a) The table has six statements about the Von Neumann model for a computer system. Three of the statements are incorrect. Statement number Statement 1 The Program Counter (PC) stores the next instruction to be fetched from memory. 2 The …
Question 2Information representation · 7 marks
(a) Convert the denary integer 558 into 12-bit binary and hexadecimal. Binary Hexadecimal (b) (i) Convert the two’s complement binary integer 11100010 into denary. (ii) Write the smallest and the largest two’s complement binary integers that can be represented in …
Question 3Ethics and Ownership · 12 marks
A computer program uses a digital camera to read the words on an item. The program can read the words that are written on the item, translate the words to a chosen language and then output the words as audio. …
Question 4Hardware · 4 marks
(a) Write the logic expressions for the following logic circuit. …
Question 5Databases · 16 marks
An online game has a database that stores data about users and the characters each user creates in the game. Each user can create multiple characters and purchase multiple items for each character. The normalised database has the following design: …
Question 6Communication · 19 marks
A company has multiple sites in different cities. The company has drivers who deliver products to customers. Each driver can connect to the company’s WAN (Wide Area Network) whilst out of the office using a smartphone. (a) State two ways …
Question 7Processor Fundamentals · 8 marks
(a) The following table shows part of the instruction set for a processor. The processor has one register: the Accumulator (ACC). Instruction Explanation Opcode Operand LDD <address> Direct addressing. Load the contents of the location at the given address to …

Other Computer Science papers from May/June 2025

Questions students ask

Where can I get the 9618/12 May/June 2025 mark scheme?

Open the mark scheme above - it is the official Cambridge scheme for this exact paper (9618_s25_ms_12), and on a wide screen it sits beside the question you are reading.

Which topics came up in 9618/12 May/June 2025?

Mostly Communication, Processor Fundamentals, Databases. The full list is in the table above.

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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.