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2025 Pearson Edexcel GCSE Computer Science Paper 1 and Mark Scheme Combined (1CP2/01: Principles of Computer Science)
Paper 1 is the Principles of Computer Science component of the Pearson Edexcel GCSE Computer Science qualification (1CP2/01). This paper assesses students’ knowledge and understanding of core computer science concepts, including systems, data, hardware, software, and computational theory.
It complements Paper 2 (1CP2/02: Application of Computational Thinking) and forms 50% of the total GCSE Computer Science grade.
Paper 1 focuses on the following areas:
Hardware components and their functions
Software types and uses
Input, output, and storage devices
Binary, hexadecimal, and character encoding (ASCII/Unicode)
Number systems, units of data, and conversions
Data storage, compression, and representation
Network types, topologies, and protocols
Internet, intranet, and cloud computing
Cybersecurity threats and protective measures
Algorithms, flowcharts, and pseudocode basics
Logic gates and Boolean algebra
Programming constructs and computational thinking foundations
Legal, ethical, and environmental considerations of computing
Social and economic impacts of technology
Multiple-choice questions to assess knowledge
Short-answer questions requiring explanation of concepts
Scenario-based questions testing application and understanding
Extended-response questions for analysis and evaluation of concepts
The paper assesses the following skills:
AO1 – Knowledge and understanding of computer science principles
AO2 – Application of knowledge to scenarios and problem-solving
AO3 – Analysis and evaluation of systems, solutions, and impacts
The combined question paper + mark scheme includes:
Correct answers for multiple-choice and short-answer questions
Model responses and guidance for scenario-based and extended questions
Allocation of marks for knowledge, application, and evaluation
Examiner notes ensuring consistent and fair marking
The mark scheme emphasizes clarity, accuracy, and the correct use of computer science terminology.
| Author | Proficient Academic Tutor |
| Published | 09 Dec 2025 |
| Included files | |
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