GCSE Computer Science (OCR)

Subjects > GCSE Computer Science (OCR) OCR

Course

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This course follows the GCSE Computer Science OCR (J277) specification, ensuring full coverage of the exam board requirements. Developed, reviewed and approved by subject experts, it covers everything you need to know to ace your exams.

Modules

Lessons

Subject Lead

Firas Aleem

Start

Course Content

Introduction to GCSE Computer Science 1 Lesson FREE

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Assessment Structure

1. Computer Systems

1.1 Systems Architecture 3 Lessons FREE

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1.1.1 Architecture of the CPU

1.1.2 CPU Performance

1.1.3 Embedded Systems

1.2 Memory and Storage 9 Lessons

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1.2.1 Primary Storage (Memory)

1.2.2 Secondary Storage

1.3 Computer Networks, Connections and Protocols 6 Lessons

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1.3.1 Networks and Topologies

1.3.2 Roles of Computers in Network Types

1.3.3 Hardware for Local Area Networks (LANs)

1.3.4 The Internet as a Collection of Networks

1.3.5 Star and Mesh Network Topologies

1.3.6 Wired and Wireless Networks, Protocols and Layers

1.4 Network Security 2 Lessons

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1.4.1 Threats To Computer Systems and Networks

1.4.2 Identifying and Preventing Vulnerabilities

1.5 Systems Software 2 Lessons

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1.5.1 Operating Systems

1.5.2 Utility Software

1.6 Ethical, Legal, Cultural and Environmental Impacts of Digital Technology 1 Lesson

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1.6.1 Ethical, Legal, Cultural and Environmental Impact

2. Computational Thinking, Algorithms and Programming

2.1 Algorithms 3 Lessons

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2.1.1 Computational Thinking

2.1.2 Designing, Creating and Refining Algorithms

2.1.3 Searching and Sorting Algorithms

2.2 Programming Fundamentals 3 Lessons

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2.2.1 Programming Fundamentals

2.2.2 Data Types

2.2.3 Additional Programming Techniques

2.3 Producing Robust Programs 2 Lessons

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2.3.1 Defensive Design

2.3.2 Testing

2.4 Boolean Logic 1 Lesson

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2.4.1 Boolean Logic

2.5 Programming Languages and Integrated Development Environments 2 Lessons

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2.5.1 Languages

2.5.2 The Integrated Development Environment (IDE)

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June 2024

Question Papers

QP - Paper 1: Computer Systems QP - Paper 2: Computational Thinking, Algorithms and Programming

Mark Schemes

MS - Paper 1: Computer Systems MS - Paper 2: Computational Thinking, Algorithms and Programming

Other

ER - Paper 1: Computer Systems ER - Paper 2: Computational Thinking, Algorithms and Programming

June 2023

Question Papers

QP - Paper 1: Computer Systems QP - Paper 2: Computational Thinking, Algorithms and Programming

Mark Schemes

MS - Paper 1: Computer Systems MS - Paper 2: Computational Thinking, Algorithms and Programming

Other

ER - Paper 1: Computer Systems ER - Paper 2: Computational Thinking, Algorithms and Programming

June 2022

Question Papers

QP - Paper 1: Computer Systems QP - Paper 2: Computational Thinking, Algorithms and Programming

Mark Schemes

MS - Paper 1: Computer Systems MS - Paper 2: Computational Thinking, Algorithms and Programming

Other

ER - Paper 1: Computer Systems ER - Paper 2: Computational Thinking, Algorithms and Programming

Sample Assessment Materials

Question Papers

QP - Paper 1: Computer Systems QP - Paper 2: Computational Thinking, Algorithms and Programming

Mark Schemes

Other

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GCSE

Computer Science

0 / 35 Lessons

Start

Introduction to GCSE Computer Science

1.1 Systems Architecture

1.2 Memory and Storage

1.3 Computer Networks, Connections and Protocols

1.4 Network Security

1.5 Systems Software

1.6 Ethical, Legal, Cultural and Environmental Impacts of Digital Technology

2.1 Algorithms

2.2 Programming Fundamentals

2.3 Producing Robust Programs

2.4 Boolean Logic

2.5 Programming Languages and Integrated Development Environments

Predicted Grade

N/A Not enough data to calculate your predicted grade!

Exam Timetable

Paper 1: Computer Systems

13 May 2026 • Afternoon

1h 30m

Paper 2: Computational Thinking, Algorithms and Programming

19 May 2026 • Afternoon

1h 30m

Subject Lead Firas Aleem

Reviewed by Sara Trickey