AQA As Computer Science Paper 2 2025 Question Paper

Get the official AQA AS Computer Science Paper 2 question paper from the May 2025 series (7516/2), sat on Monday 19 May 2025 (afternoon session). This is the full 1 hour 30 minute written exam paper containing all structured and extended-response questions used in the live assessment.

The paper assesses core theoretical knowledge across data representation, Boolean logic, computer architecture, networking, and ethical issues in computing. Early questions include number systems and binary arithmetic (page 3–4), such as converting binary to decimal, two’s complement ranges, and fixed-point representation. Later questions cover ASCII vs Unicode, sound sampling and DACs, data compression using RLE (page 7), and low-level programming concepts including assembly language (page 14 showing the full AQA instruction set).

Students are also tested on logic circuits and parity bits (page 10–11), De Morgan’s laws and Boolean expressions (page 12), and the Fetch-Execute cycle including MAR and MBR roles (page 13). The paper concludes with higher-mark questions on digital imaging, SSD storage, networking concepts (serial transmission, baud vs bit rate, SSID security), and a 9-mark evaluative essay on ethical and legal issues in online platforms (page 18).

Use this paper to practise under real exam conditions and develop exam technique for both short-answer and extended-response questions. Pair it with the official AQA 7516/2 mark scheme for complete exam preparation.

This document is for AS Computer Science students preparing for the 2026 exam series, including Year 12 students and those strengthening theoretical understanding for A-Level progression.

It is also ideal for teachers and tutors who require authentic AQA exam material for classroom teaching, mock exams, and structured revision sessions covering Paper 2 theory topics.