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. ⠀ 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 network threats, including malware, social engineering, brute-force, denial-of-service, data interception & theft, and SQL injection. 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: 2 Lessons This resource is designed to cover: Malware Social Engineering Brute-Force Attacks Denial-of-Service Attacks Data Interception Data Theft Concept of SQL injection Purpose of each threat and how it is used. ⠀

This covers a variety of examples of the main ethical and cultural 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. Suggested Duration: 1-2 Lesson(s) This resource is designed to cover: Variety of examples of ethical and cultural issues. Key stakeholders and how they are impacted by digital technology. ⠀ Other complete lessons in Unit 1.6: Ethical and Cultural Issues (Current) Legal, Environmental, and Privacy Issues Laws and Legislation Software Licenses You can also view a discounted bundle that contains all the above resources.

These revision questions for computer science paper 1 are designed to sharpen students’ readiness for the exams, by finding any weaknesses in their knowledge and ensuring a thorough grasp of the topic. This activity can be used as a starter, main lesson activity, and even as homework! 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.   █▀▀ █▀▀ ▄▀█ ▀█▀ █░█ █▀█ █▀▀ █▀ █▀░ ██▄ █▀█ ░█░ █▄█ █▀▄ ██▄ ▄█ Compliant with the OCR GCSE Computer Science specification J277. This resource contains: 100 multiple-choice questions which cover the content found in paper 1, designed to find any gaps in knowledge so students can be ready for the exams! A mark scheme for each question allows for students to self-evaluate their work. ⠀ Other useful resources from us: 8 Mark Practice Q’ (Set A) - Exam Q’ Practice (OCR GCSE J277) Practice Paper 1 - Exam Practice (OCR GCSE J277) The Internet - Complete Lesson (OCR GCSE J277)   █▀▀ █▀█ █ █▀▄▀█ █▀ █▀█ █▄░█ █▄▄ █▀▄ █ █░▀░█ ▄█ █▄█ █░▀█   █░█░█ █ ▀█ ▄▀█ █▀█ █▀▄ ▀▄▀▄▀ █ █▄ █▀█ █▀▄ █▄▀ Feel free to leave any feedback in the review section below! :)

These revision questions for paper 1 are designed to sharpen students’ readiness for the exams, by finding any weaknesses in their knowledge and ensuring a thorough grasp of the topic. This activity can be used as a starter, main lesson activity, and even as homework! 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.   █▀▀ █▀▀ ▄▀█ ▀█▀ █░█ █▀█ █▀▀ █▀ █▀░ ██▄ █▀█ ░█░ █▄█ █▀▄ ██▄ ▄█ Compliant with the OCR GCSE Computer Science specification J277. This resource contains: 100 multiple-choice questions which cover the content found in paper 1, designed to find any gaps in knowledge so students can be ready for the exams! A mark scheme for each question allows for students to self-evaluate their work. ⠀ Other useful resources from us: 8 Mark Practice Q’ (Set A) - Exam Q’ Practice (OCR GCSE J277) File Handling - Python Programming Challenges Laws and Legislation - Complete Lesson (OCR GCSE J277)   █▀▀ █▀█ █ █▀▄▀█ █▀ █▀█ █▄░█ █▄▄ █▀▄ █ █░▀░█ ▄█ █▄█ █░▀█   █░█░█ █ ▀█ ▄▀█ █▀█ █▀▄ ▀▄▀▄▀ █ █▄ █▀█ █▀▄ █▄▀ Feel free to leave any feedback in the review section below! :)

These assessment exam-styled questions for topic 1.1 cover embedded systems, Von Neumann architecture, and CPU performance - everything required to evaluate students’ knowledge and proficiency in these foundational subjects. Furthermore, these questions can be used for revision to find area of weaknesses prior to the big 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.   █▀▀ █▀▀ ▄▀█ ▀█▀ █░█ █▀█ █▀▀ █▀ █▀░ ██▄ █▀█ ░█░ █▄█ █▀▄ ██▄ ▄█ Compliant with the OCR GCSE Computer Science specification J277. This resource contains: Assessment for topic 1.1 which is designed to evaluate students’ proficiency and understanding of the content found in this topic. The test has been created in a way to ensure it can be completed within 1 lesson. 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. ⠀ Total Marks: 30 Suggested Allowed Time: 34 minutes (+25% extra time = 43 minutes) ⠀ Other useful resources from us: 8 Mark Practice Q’ (Set B) - Exam Q’ Practice (OCR GCSE J277) File Handling - Python Programming Challenges Software Licenses - Complete Lesson (OCR GCSE J277)   █▀▀ █▀█ █ █▀▄▀█ █▀ █▀█ █▄░█ █▄▄ █▀▄ █ █░▀░█ ▄█ █▄█ █░▀█   █░█░█ █ ▀█ ▄▀█ █▀█ █▀▄ ▀▄▀▄▀ █ █▄ █▀█ █▀▄ █▄▀ Feel free to leave any feedback in the review section below! :)

These assessment exam-styled questions for topic 1.3 cover types of networks, connections, performance, standards and protocols… etc. - everything required to evaluate students’ knowledge and proficiency in these foundational subjects. Furthermore, these questions can be used for revision to find area of weaknesses prior to the big 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.   █▀▀ █▀▀ ▄▀█ ▀█▀ █░█ █▀█ █▀▀ █▀ █▀░ ██▄ █▀█ ░█░ █▄█ █▀▄ ██▄ ▄█ Compliant with the OCR GCSE Computer Science specification J277. This resource contains: Assessment for topic 1.3 which is designed to evaluate students’ proficiency and understanding of the content found in this topic. The test has been created in a way to ensure it can be completed within 1 lesson. 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. ⠀ Total Marks: 32 Suggested Allowed Time: 36 minutes (+25% extra time = 45 minutes) ⠀ Other useful resources from us: Long Answer Practice Q’ (Set B) - Exam Q’ Practice (OCR GCSE J277) Iterations / Loops - Python Programming Challenges Standards and Protocols - Complete Lesson (OCR GCSE J277)   █▀▀ █▀█ █ █▀▄▀█ █▀ █▀█ █▄░█ █▄▄ █▀▄ █ █░▀░█ ▄█ █▄█ █░▀█   █░█░█ █ ▀█ ▄▀█ █▀█ █▀▄ ▀▄▀▄▀ █ █▄ █▀█ █▀▄ █▄▀ Feel free to leave any feedback in the review section below! :)

These assessment exam-styled questions for topic 1.5 cover operating systems and system utility software… - everything required to evaluate students’ knowledge and proficiency in these foundational subjects. Furthermore, these questions can be used for revision to find area of weaknesses prior to the big 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.   █▀▀ █▀▀ ▄▀█ ▀█▀ █░█ █▀█ █▀▀ █▀ █▀░ ██▄ █▀█ ░█░ █▄█ █▀▄ ██▄ ▄█ Compliant with the OCR GCSE Computer Science specification J277. This resource contains: Assessment for topic 1.5 which is designed to evaluate students’ proficiency and understanding of the content found in this topic. The test has been created in a way to ensure it can be completed within 1 lesson. 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. ⠀ Total Marks: 28 Suggested Allowed Time: 32 minutes (+25% extra time = 40 minutes) ⠀ Other useful resources from us: Grade 9-7 Practice Q’ (Set B) - Exam Q’ Practice (OCR GCSE J277) Iterations / Loops - Python Programming Challenges Utility Software - Complete Lesson (OCR GCSE J277)   █▀▀ █▀█ █ █▀▄▀█ █▀ █▀█ █▄░█ █▄▄ █▀▄ █ █░▀░█ ▄█ █▄█ █░▀█   █░█░█ █ ▀█ ▄▀█ █▀█ █▀▄ ▀▄▀▄▀ █ █▄ █▀█ █▀▄ █▄▀ Feel free to leave any feedback in the review section below! :)

These long answer exam-styled questions for J277 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.   █▀▀ █▀▀ ▄▀█ ▀█▀ █░█ █▀█ █▀▀ █▀ █▀░ ██▄ █▀█ ░█░ █▄█ █▀▄ ██▄ ▄█ 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. ⠀ Total Marks: 50 Suggested Allowed Time: 56 minutes (+25% extra time = 70 minutes) ⠀ Other useful resources from us: Grade 9-7 Practice Q’ (Set A) - Exam Q’ Practice (OCR GCSE J277) Random Numbers - Python Programming Challenges Utility Software - Complete Lesson (OCR GCSE J277)   █▀▀ █▀█ █ █▀▄▀█ █▀ █▀█ █▄░█ █▄▄ █▀▄ █ █░▀░█ ▄█ █▄█ █░▀█   █░█░█ █ ▀█ ▄▀█ █▀█ █▀▄ ▀▄▀▄▀ █ █▄ █▀█ █▀▄ █▄▀ Feel free to leave any feedback in the review section below! :)

These challenging exam-styled questions are aimed high-achieving students aiming for grades 9-7 in the exam! Exam practice questions offer students a targeted and effective way to prepare, ensuring they are confident and successful on the exam day. Challenge your students with our selection of difficult exam practice questions, designed to expand their boundaries. 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.   █▀▀ █▀▀ ▄▀█ ▀█▀ █░█ █▀█ █▀▀ █▀ █▀░ ██▄ █▀█ ░█░ █▄█ █▀▄ ██▄ ▄█ Compliant with the OCR GCSE Computer Science specification J277. This resource contains: Difficult practice questions allow for students to prepare for success, even when faced with the toughest exam questions - suitable for ace students! 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. ⠀ Total Marks: 50 Suggested Allowed Time: 57 minutes (+25% extra time = 71 minutes) ⠀ Other useful resources from us: Long Answer Practice Q’ (Set A) - Exam Q’ Practice (OCR GCSE J277) Iterations / Loops - Python Programming Challenges Software Licenses - Complete Lesson (OCR GCSE J277)   █▀▀ █▀█ █ █▀▄▀█ █▀ █▀█ █▄░█ █▄▄ █▀▄ █ █░▀░█ ▄█ █▄█ █░▀█   █░█░█ █ ▀█ ▄▀█ █▀█ █▀▄ ▀▄▀▄▀ █ █▄ █▀█ █▀▄ █▄▀ Feel free to leave any feedback in the review section below! :)

This resource covers the addition of two binary values together and overflow errors that may occur. 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: 1 Lesson Please note that a binary crash course version of this resource is available. This resource is designed to cover: Adding two binary values up to and including 8 bits. Why overflow errors occur. ⠀

This resource covers the conversion between binary integers and decimal values, and vice versa. 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: 1 Lesson Please note that a binary crash course version of this resource is available. This resource is designed to cover: What is binary? Conversion between binary and denary. Conversion between denary to binary - two methods. ⠀

These revision questions for paper 2 are designed to sharpen students’ readiness for the exams, by finding any weaknesses in their knowledge and ensuring a thorough grasp of the topic. This activity can be used as a starter, main lesson activity, and even as homework! 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.   █▀▀ █▀▀ ▄▀█ ▀█▀ █░█ █▀█ █▀▀ █▀ █▀░ ██▄ █▀█ ░█░ █▄█ █▀▄ ██▄ ▄█ Compliant with the OCR GCSE Computer Science specification J277. This resource contains: 55 multiple-choice questions which cover the content found in paper 2, designed to find any gaps in knowledge so students can be ready for the exams! A mark scheme for each question allows for students to self-evaluate their work. ⠀ Other useful resources from us: 8 Mark Practice Q’ (Set A) - Exam Q’ Practice (OCR GCSE J277) Long Answer Practice Q’ (Set B) - Exam Q’ Practice (OCR GCSE J277) Network Performance - Complete Lesson (OCR GCSE J277)   █▀▀ █▀█ █ █▀▄▀█ █▀ █▀█ █▄░█ █▄▄ █▀▄ █ █░▀░█ ▄█ █▄█ █░▀█   █░█░█ █ ▀█ ▄▀█ █▀█ █▀▄ ▀▄▀▄▀ █ █▄ █▀█ █▀▄ █▄▀ Feel free to leave any feedback in the review section below! :)

These 8 mark exam-styled questions are for paper 1 for the computer science J277 course. Exam practice questions offer students a targeted and effective way to prepare, ensuring they are confident and successful on the exam day. These questions aim to enhance students’ understanding allowing them to master key concepts. 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.   █▀▀ █▀▀ ▄▀█ ▀█▀ █░█ █▀█ █▀▀ █▀ █▀░ ██▄ █▀█ ░█░ █▄█ █▀▄ ██▄ ▄█ Compliant with the OCR GCSE Computer Science specification J277. This resource contains: Six unique 8-mark practice questions allow for students to practice their exam-technique on these high mark questions, each is worth 10% of the paper and can be the difference between a grade 8 and grade 9. 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. ⠀ Total Marks: 48 Suggested Allowed Time: 54 minutes (+25% extra time = 68 minutes) ⠀ Other useful resources from us: 8 Mark Questions (Set A) - Exam Q’ Practice (OCR GCSE J277) File Handling - Python Programming Challenges Binary Addition - Complete Lesson (OCR GCSE J277)   █▀▀ █▀█ █ █▀▄▀█ █▀ █▀█ █▄░█ █▄▄ █▀▄ █ █░▀░█ ▄█ █▄█ █░▀█   █░█░█ █ ▀█ ▄▀█ █▀█ █▀▄ ▀▄▀▄▀ █ █▄ █▀█ █▀▄ █▄▀ Feel free to leave any feedback in the review section below! :)