This teaches students about lossy and lossless compression, along with the need for compression, and the effect on files. It has been specially created for the OCR GCSE Computer Science (J277) course, meaning there is no irrelevant content from other exam boards. This resource consists of a PowerPoint presentation, a worksheet with answers, custom exam-styled questions with a mark scheme, and a full lesson plan. See the video and the preview image to see what is included!
Feedback has been considered when creating and updating this resource to ensure it is appealing, engaging, and challenging. This resource will be updated to ensure it is (one of) the best!
Duration: 1 Lesson
This resource is designed to cover:
Why compression is used.
Lossy and Lossless compression.
Scenarios where each type of compression may be used.
Advantages and disadvantages of each type of compression - there is a worksheet task designed for students to obtain this information from the presentation.
Effects on different types of files.
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Other complete lessons in Unit 1.2:
RAM, ROM, and Virtual Memory (Primary Storage)
Units of Storage
Secondary Storage
Binary Crash Course
Representing Images
Representing Sound
Representing Characters
Compression (Current)
This resource covers everything about the OS, including user interfaces, and memory, peripheral, user, and file management. It has been specially created for the OCR GCSE Computer Science (J277) course, meaning there is no irrelevant content from other exam boards. This resource consists of a PowerPoint presentation, a worksheet with answers, custom-made exam-styled questions with a mark scheme, and a full lesson plan. See the preview to see what is included!
Feedback has been considered when creating and updating this resource to ensure it is appealing, engaging, and challenging. This resource will be updated to ensure it is (one of) the best!
Duration: 2 Lesson
This resource is designed to cover:
User Interfaces: Graphical User Interface (GUI) and Command-Line Interface (CLI)
Memory Management
Multitasking
Peripheral Management, including Device Drivers
User Management
File Management
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These exam-styled questions are aimed at students who wants to gain those last couple marks in these longer questions! Exam practice questions offer students a targeted and effective way to prepare, ensuring they are confident and successful on the exam day. Level up your students’ exam readiness with our targeted long-answer practice questions, crafted to sharpen your writing skills and secure top marks
You can easily reuse and adapt our top-quality teaching material to fit your unique teaching style. This activity is suitable for classroom use or for self-study at home.
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Compliant with the OCR GCSE Computer Science specification J277.
This resource contains:
Long-answer practice questions allow for students to practice their exam technique to gain those last couple marks, which could be the difference between an entire grade.
A mark scheme for each question allows for students to self-evaluate their work or explore a different way of answering the question.
A word document format is provided to allow for practice for the digital exams in 2025.
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Total Marks: 46
Suggested Allowed Time: 52 minutes (+25% extra time = 65 minutes)
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Other useful resources from us:
8 Mark Practice Q’ (Set A) - Exam Q’ Practice (OCR GCSE J277)
String Manipulation - Python Programming Challenges
Software Licenses - Complete Lesson (OCR GCSE J277)
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Feel free to leave any feedback in the review section below! :)
This is a practice paper 1 for computer science, which aims to maximise students’ readiness and allow them to master the material to ace the test. Exam practice questions offer students a targeted and effective way to prepare, ensuring they are confident and successful on the exam day.
You can easily reuse and adapt our top-quality teaching material to fit your unique teaching style. This activity is suitable for classroom use or for self-study at home.
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Compliant with the OCR GCSE Computer Science specification J277.
This resource contains:
Practice exam paper 1 which allows students to practice their exam technique and find any weaknesses prior to the big day!
This mock paper has been designed to contain the correct proportion of AO1 and AO2 questions as per the specification. This means that 42% of the marks are based on AO1, and the remaining 58% based on AO2.
A mark scheme for each question allows for students to self-evaluate their work or explore a different way of answering the question.
A word document format is provided to allow for practice for the digital exams in 2025.
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Total Marks: 80
Suggested Allowed Time: 90 minutes (+25% extra time = 113 minutes)
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Other useful resources from us:
Grade 9-7 Practice Q’ (Set A) - Exam Q’ Practice (OCR GCSE J277)
Random Numbers - Python Programming Challenges
Units of Storage - Complete Lesson (OCR GCSE J277)
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Feel free to leave any feedback in the review section below! :)
This teaches students about Local Area Networks LAN and Wide Area Networks WAN, as well as the role of computers in the Client-Server and Peer-to-Peer models. It has been specially created for the OCR GCSE Computer Science (J277) course, meaning there is no irrelevant content from other exam boards. This resource consists of a PowerPoint presentation, two worksheets with answers, custom exam-styled questions with a mark scheme, and a full lesson plan. See the video and the preview image to see what is included!
Feedback has been considered when creating and updating this resource to ensure it is appealing, engaging, and challenging. This resource will be updated to ensure it is (one of) the best!
Duration: 2-3 Lessons
This resource is designed to cover:
Local Area Networks and common examples.
Wide Area Networks and common examples.
Client-Server and Peer-to-Peer Network Model.
Role of computers in the Client-Server and Peer-to-Peer models.
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Other complete lessons in Unit 1.3:
Types of Networks (Current)
Network Performance
Network Hardware
The Internet
Network Topologies
Encryption (Free)
Standards and Network Protocols
Network Connections
This complete lesson teaches students about network hardware: Wireless Access Points WAP, Network Interface Controllers NIC, Switches, Routers, and Transmission Media. It has been specially created for the OCR GCSE Computer Science (J277) course, meaning there is no irrelevant content from other exam boards. This resource consists of a PowerPoint presentation, a worksheet with answers, custom-made exam-styled questions with a mark scheme, and a full lesson plan. See the video and the preview image to see what is included!
Feedback has been considered when creating and updating this resource to ensure it is appealing, engaging, and challenging. This resource will be updated to ensure it is (one of) the best!
Duration: 1-2 Lessons
This resource is designed to cover:
Hardware needed to connect devices to a Local Area Network (LAN):
Wireless Access Points
Network Interface Controllers
Routers
Switches
Transmission Media:
Ethernet Cables
Fibre Optics
Wi-Fi
Function and purpose of each piece of hardware.
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Other complete lessons in Unit 1.3:
Types of Networks
Network Performance
Network Hardware (Current)
The Internet
Network Topologies
Encryption (Free)
Standards and Network Protocols
Network Connections
This resource covers the purpose of IP Addresses and MAC addresses, as well as different modes of connection: wireless (using Wi-Fi and Bluetooth) and wired (using Ethernet). It has been specially created for the OCR GCSE Computer Science (J277) course, meaning there is no irrelevant content from other exam boards. This resource consists of a PowerPoint presentation, a worksheet with answers, custom-made exam-styled questions with a mark scheme, and a full lesson plan. See the video and the preview image to see what is included!
Feedback has been considered when creating and updating this resource to ensure it is appealing, engaging, and challenging. This resource will be updated to ensure it is (one of) the best!
Duration: 1 Lesson
This resource is designed to cover:
Purpose of IP Addresses and MAC Addresses in networks.
Format of IP Addresses: IPv4 and IPv6.
Modes of connecting devices:
Wi-Fi
Bluetooth
Ethernet
Brief concept of layers.
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Other complete lessons in Unit 1.3:
Types of Networks
Network Performance
Network Hardware
The Internet
Network Topologies
Encryption (Free)
Standards and Network Protocols
Network Connections (Current)
This lesson is about primary storage, more specifically RAM, ROM, and Virtual Memory. It has been specially created for the OCR GCSE Computer Science (J277) course, meaning there is no irrelevant content from other exam boards. This resource consists of a PowerPoint presentation, a worksheet with an answer sheet, custom exam-styled questions with a mark scheme, and a full lesson plan. See the video and the preview image to see what is included!
Feedback has been considered when creating and updating this resource to ensure it is appealing, engaging, and challenging. This resource will be updated to ensure it is (one of) the best!
Please note that content about flash memory and cache is not included in this resource.
Duration: 1-2 Lessons
This resource is designed to cover:
The need for Primary Storage.
Purpose of RAM, ROM, and Virtual Memory.
Differences between RAM and ROM, and their key characteristics.
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Other complete lessons in Unit 1.2:
RAM, ROM, and Virtual Memory (Primary Storage) (Current)
Units of Storage
Secondary Storage
Binary Crash Course
Representing Images
Representing Sound
Representing Characters
Compression
Get all the exam revision resources, including exam-styled questions, you need in one place and at a saving of 40%.
This bundle includes:
8 Mark Practice Questions (Set A and Set B)
Grade 9-7 Practice Questions (Set A and Set B)
Long Answer Practice Questions (Set A and Set B)
Multiple-Choice Practice Questions (Set A and Set B)
Practice Paper 1 (Set A and Set B)
End of Topic Assessments for 1.1, 1.2, 1.3, 1.4, 1.5, and 1.6.
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Feel free to leave any feedback in the review section below! :)
Revision for Paper 1 - OCR GCSE Computer Science J277
Save 20% with this bundle compared to buying each resource separately.
This bundle includes:
8 Mark Practice Questions (Set A)
Grade 9-7 Practice Questions (Set A)
Long Answer Practice Questions (Set A)
Mock Exam Paper 1 (Set A)
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Get all the resources, which cover the content for Unit 1.1, in one place and at a discounted price (10% off). This bundle contains the following resources:
Purpose of the CPU (OCR GCSE Lesson)
Von Neumann Architecture (OCR GCSE Lesson)
CPU Performance (OCR GCSE Lesson)
Embedded Systems (OCR GCSE Lesson)
This activity aims to challenge students’ Python programming skills in selections (if statements). This resource is suitable for students with different abilities, with the source code being available for each challenge.
You can easily reuse and adapt our top-quality teaching material to fit your unique teaching style. This activity is suitable for classroom use or for self-study at home, and allows for students to develop their problem-solving skills.
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Compliant with the AQA/OCR GCSE Computer Science specifications 8525/J277.
This resource contains:
17 challenges provide students with an invaluable opportunity to sharpen their coding skills and problem-solving abilities
Source code answers allowing for students to self-evaluate their work or explore a different way of solving the problem.
Other useful resources from us:
String Manipulation - Python Programming Challenges
Random Numbers - Python Programming Challenges
Representing Sound - Complete Lesson (OCR GCSE J277)
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Feel free to leave any feedback in the review section below! :)
This is designed to teach students how images are represented in computers. It provides an overview on bitmaps and vectors, and goes into detail on how pixels are represented. It has been specially created for the OCR GCSE Computer Science (J277) course, meaning there is no irrelevant content from other exam boards. This resource consists of a PowerPoint presentation, a worksheet with answers, custom exam-styled questions with a mark scheme, and a full lesson plan. See the video and the preview image to see what is included!
Feedback has been considered when creating and updating this resource to ensure it is appealing, engaging, and challenging. This resource will be updated to ensure it is (one of) the best!
Duration: 1 Lesson
This resource is designed to cover:
How an image is represented using pixels.
How each pixel is represented.
Effect of colour depth and resolution on images.
Metadata.
Calculating the size of an image file.
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Other complete lessons in Unit 1.2:
RAM, ROM, and Virtual Memory (Primary Storage)
Units of Storage
Secondary Storage
Binary Crash Course
Representing Images (Current)
Representing Sound
Representing Characters
Compression
This covers a variety of examples of the main legal, environmental, and privacy issues of digital technology. This resource has been specially created for the OCR GCSE Computer Science (J277) course, meaning there is no irrelevant content from other exam boards. This resource consists of a PowerPoint presentation, a worksheet with answers, custom-made exam-styled questions with a mark scheme, and a full lesson plan. See the preview to see what is included!
This resource is here to save you time and hassle. With our top-quality teaching material, you can easily reuse and adapt them to fit your unique teaching style. Say goodbye to the stress of lesson planning and hello to more time for what matters most.
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This resource is designed to cover:
Variety of examples of legal, environmental, and privacy issues.
Key stakeholders and how they are impacted by digital technology.
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Suggested Duration: 1-2 Lesson(s)
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Other complete lessons in Unit 1.6:
Ethical and Cultural Issues
Legal, Environmental, and Privacy Issues (Current)
Laws and Legislation
Software Licenses
You can also view a discounted bundle that contains all the above resources.
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You might like these other resource(s):
Multiple-Choice Revision Questions for Paper 1 (Set A)
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Get all the resources, which cover the content for Unit 1.2, in one place and at a discounted price (10% off). This bundle contains the following resources:
Primary Storage: RAM, ROM, Virtual Memory (OCR GCSE Lesson)
Secondary Storage (OCR GCSE Lesson)
Units of Storage (OCR GCSE Lesson)
Binary Crash Course (OCR GCSE Lesson)
Representing Characters (OCR GCSE Lesson)
Representing Images (OCR GCSE Lesson)
Representing Sound (OCR GCSE Lesson)
Compression (OCR GCSE Lesson)
This activity aims to challenge students’ Python programming skills in using string manipulation techniques. This resource is suitable for students with different abilities, with the source code being available for each challenge.
You can easily reuse and adapt our top-quality teaching material to fit your unique teaching style. This activity is suitable for classroom use or for self-study at home, and allows for students to develop their problem-solving skills.
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Compliant with the AQA/OCR GCSE Computer Science specifications 8525/J277.
This resource contains:
12 challenges provide students with an invaluable opportunity to sharpen their coding skills and problem-solving abilities through using string manipulation techniques.
Source code answers allowing for students to self-evaluate their work or explore a different way of solving the problem.
Other useful resources from us:
Random Numbers - Python Programming Challenges
Iterations / Loops - Python Programming Challenges
Utility Software - Complete Lesson (OCR GCSE J277)
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Feel free to leave any feedback in the review section below! :)
This lesson teaches students about the star and mesh network topologies. This includes the advantages and disadvantages of each topology. It has been specially created for the OCR GCSE Computer Science (J277) course, meaning there is no irrelevant content from other exam boards. This resource consists of a PowerPoint presentation, a worksheet with answers, custom-made exam-styled questions with a mark scheme, and a full lesson plan. See the video and the preview image to see what is included!
Feedback has been considered when creating and updating this resource to ensure it is appealing, engaging, and challenging. This resource will be updated to ensure it is (one of) the best!
Duration: 1-2 Lessons
This resource is designed to cover:
Star Network Topology
Mesh Network Topology
Advantages and Disadvantages of the Star and Mesh Topologies
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Other complete lessons in Unit 1.3:
Types of Networks
Network Performance
Network Hardware
The Internet
Network Topologies (Current)
Encryption (Free)
Standards and Network Protocols
Network Connections
This activity aims to challenge students’ Python programming skills in using iterations / loops. This resource is suitable for students with different abilities, with the source code being available for each challenge.
You can easily reuse and adapt our top-quality teaching material to fit your unique teaching style. This activity is suitable for classroom use or for self-study at home, and allows for students to develop their problem-solving skills.
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Compliant with the AQA/OCR GCSE Computer Science specifications 8525/J277.
This resource contains:
12 challenges provide students with an invaluable opportunity to sharpen their coding skills and problem-solving abilities through using iterations / loops.
Source code answers allowing for students to self-evaluate their work or explore a different way of solving the problem.
Other useful resources from us:
File Handling - Python Programming Challenges
String Manipulation - Python Programming Challenges
Software Licenses - Complete Lesson (OCR GCSE J277)
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Feel free to leave any feedback in the review section below! :)
This activity aims to challenge students’ Python programming skills in using random numbers. This resource is suitable for students with different abilities, with the source code being available for each challenge.
You can easily reuse and adapt our top-quality teaching material to fit your unique teaching style. This activity is suitable for classroom use or for self-study at home, and allows for students to develop their problem-solving skills.
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Compliant with the AQA/OCR GCSE Computer Science specifications 8525/J277.
This resource contains:
12 challenges provide students with an invaluable opportunity to sharpen their coding skills and problem-solving abilities through using random numbers.
Source code answers allowing for students to self-evaluate their work or explore a different way of solving the problem.
Other useful resources from us:
File Handling - Python Programming Challenges
Random Numbers - Python Programming Challenges
(Free) Encryption - Complete Lesson (OCR GCSE J277)
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Feel free to leave any feedback in the review section below! :)
Buy these three resources together and save 10%.
The following resources are included:
Representing Characters (OCR GCSE Lesson)
Representing Images (OCR GCSE Lesson)
Representing Sound (OCR GCSE Lesson)