OCR As Level Computer Science Paper 1 Question Paper

Download the official OCR AS Level Computer Science H046/01 Computing Principles question paper for the June 2025 examination series. This examiner-authentic OCR PDF contains the complete OCR AS Computing Principles examination covering computer architecture, operating systems, data representation, logic circuits, networking, protocols and ethical issues in computing.

The paper includes detailed questions on the Fetch-Decode-Execute cycle, processor registers, multicore processing, clock speed, operating-system functions, Unicode versus ASCII, binary arithmetic, hexadecimal conversion, compilers versus interpreters and TCP/IP networking. Students are also assessed on arrays, lists, functions, Boolean logic, Karnaugh maps and logic-gate truth tables.

Programming and computational-thinking tasks involve analysing survey data stored in 2D arrays, counting Boolean values, calculating averages from arrays, writing pseudocode functions and comparing arrays with lists. The assessment additionally covers legal, moral and environmental considerations linked to drone delivery systems and electric self-driving vehicles.

Extended-response questions require discussion of operating-system functions for server management and evaluation of ethical, legal and environmental drawbacks of autonomous delivery technologies. The paper tests both technical knowledge and structured analytical discussion using OCR’s level-of-response assessment style.

This OCR H046/01 June 2025 question paper is ideal for timed exam practice, mock examinations, systems revision and OCR AS Computer Science preparation. It helps students understand OCR question structure, command words, mark allocation and examiner expectations across the Computing Principles specification.

Perfect for students preparing for the 2026 OCR examination series, teachers creating classroom assessments and tutors supporting OCR Computer Science revision. Pair this paper with the official OCR H046/01 June 2025 mark scheme for complete examiner-guided preparation and assessment practice. Fully compatible with desktop, tablet and mobile PDF viewing.

This document is designed for OCR AS Level Computer Science students preparing for the 2026 examination series, especially candidates studying computing principles, systems architecture and networking. It is particularly useful for learners aiming to improve technical understanding, computational thinking, pseudocode accuracy and extended-response exam technique.

It is also highly valuable for teachers, tutors, revision-course providers and independent learners who require authentic OCR exam material for classroom assessment, timed revision, mock examinations, logic-circuit analysis, networking revision and targeted OCR Computer Science preparation.