Computer Science GCSE

Computer Science GCSE

Easter Revision Course Dates 2026

• Week 1: Monday 30 March – Friday 3 April 2026
• Week 2: Monday 6 April – Friday 10 April 2026
• Week 3: Monday 13 April – Friday 17 April 2026

Please note – revision classes WILL take place on the Good Friday and Easter Monday bank holidays, 3rd and 6th April 2026.

Boards

OCR J277

Length of Course

5 half-day sessions

This course is designed for students who are studying the OCR J277 Computer Science Course and is intended to be a revision of all the main topics together with exam technique and practice to maximise performance in the final exams.

1.1 Systems Architecture

• Architecture of the CPU
• CPU performance
• Embedded Systems

1.2 Memory and Storage

• Primary storage
• Secondary storage
•  Units
• Data storage
• Compression

1.3 Computer Networks, connections and protocols

• Networks and topologies
• Wired and wireless networks, protocols and layers

1.4 Network security

• Threats to computer systems and networks
• Identifying and preventing vulnerabilities

1.5 System software

• Operating systems
• Utility software

1.6 Ethical, legal, cultural and environmental impacts of digital technology

• Ethical, legal, cultural and environmental impact

2.1 Algorithms

• Computational thinking
• Designing, creating and refining algorithms
• Searching and sorting algorithms

2.2 Programming fundamentals

• Programming fundamentals
• Data types
• Additional programming techniques

2.3 Producing robust programs

• Defensive design
• Testing

2.4 Boolean logic

• Logic diagrams
• Truth tables
• Combining Boolean operators
• Solving logical problems

2.5 Programming languages and IDEs

• Languages
• The Integrated Development Environment (IDE)