Edexcel GCSE Computer Science · 1CP2

Edexcel GCSE Computer Science Paper 1

Principles of Computer Science

Length: 1 hour 30 minutes
Marks: 75
Weighting: 50% of the GCSE

From the Edexcel specification (opens in a new tab), Issue 1, PDF page 6.

5 sections · 45 revision notes · 4 past papers

What’s on Paper 1

Topic 1 Computational Thinking

Decomposition and Abstraction · Algorithms · Truth Tables10 notes

1.1 Decomposition and Abstraction

1.1.1 Decomposition and Abstraction for Real-World Modeling

Paper 1 past papers

June 2025 Paper 1
Question paper Mark scheme

June 2024 Paper 1
Question paper Mark scheme

All Edexcel GCSE Computer Science past papers

1.1.2

Benefits of Subprograms

1.2 Algorithms

1.3 Truth Tables

1.3.1 Logical Operators in Truth Tables

Computational Thinking overview

Topic 2 Data

Binary · Data Representation · Data Storage and Compression12 notes

2.1 Binary

2.2 Data Representation

2.3 Data Storage and Compression

Data overview

Topic 3 Computers

Hardware · Software · Programming Languages8 notes

3.1 Hardware

3.2 Software

3.3 Programming Languages

Computers overview

Topic 4 Networks

Networks · Network Security9 notes

4.1 Networks

4.2 Network Security

4.2.1 Vulnerabilities and Protection Methods

Networks overview

Topic 5 Issues and Impact

Environmental Issues · Ethical and Legal Considerations · Cybersecurity6 notes

5.1 Environmental Issues

5.1.1 Environmental Impact of Devices

5.2 Ethical and Legal Considerations

5.3 Cybersecurity

Issues and Impact overview

2.2.4

Limitations of Binary Representation