This lesson is about units of data storage and is designed to teach students about bits and how units are used to simplify file sizes. 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! Duration: 1 Lesson This resource is designed to cover: Units of data storage. Moving between different data units. Calculating required storage capacity for files. Why data needs to be converted to binary format. ⠀ Other complete lessons in Unit 1.2: RAM, ROM, and Virtual Memory (Primary Storage) Units of Storage (Current) Secondary Storage Binary Crash Course Representing Images Representing Sound Representing Characters Compression

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. ⠀ 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 lesson is about the Factors which affect the Performance of CPUs/processors and 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! Duration: 1 Lesson This resource is designed to cover: Characteristics which affects the performance of the processor: clock speed, cache memory capacity, number of cores. Effect on performance if changing one, or a combination, of the above characteristics. ⠀ Have any questions? Feel free to contact me. Other complete lessons in Unit 1.1: Purpose of the CPU (Free) Von Neumann Architecture CPU Performance (Current) Embedded Systems (Free)

This resource teaches students about the performance of computer networks - network latency, transmission errors, bandwidth, type of network traffic, and the number of connected devices. 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: Factors that affect the performance of a computer network: Network Latency Transmission Errors Bandwidth Type of Network Traffic Number of Connected Devices ⠀ Other complete lessons in Unit 1.3: Types of Networks Network Performance (Current) Network Hardware The Internet Network Topologies Encryption (Free) Standards and Network Protocols Network Connections

This lesson teaches students about the principle of standards and the different network protocols that are used for communication. 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: Principle of Standards Different Types of Network Protocols and their Purpose: TCP/IP HTTP HTTPS FTP SMTP POP IMAP ⠀ Other complete lessons in Unit 1.3: Types of Networks Network Performance Network Hardware The Internet Network Topologies Encryption (Free) Standards and Network Protocols (Current) Network Connections

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 ⠀ 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 lesson teaches students about the internet: Domain Name Service (DNS), server hosting, the cloud, web servers, and clients. 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: The Internet: DNS, Hosting, The Cloud, Web Servers, and Clients. Purpose of the DNS. Purpose of the cloud. Interaction between clients and web servers. Different types of servers and the services they provide. Advantages and disadvantages of the cloud. ⠀ Other complete lessons in Unit 1.3: Types of Networks Network Performance Network Hardware The Internet (Current) Network Topologies Encryption (Free) Standards and Network Protocols Network Connections

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. ⠀ 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 is designed to teach how characters are represented using binary in computers, and character sets: ASCII, Extended ASCII and Unicode. 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 characters are represented using binary codes. Character sets: ASCII, Extended ASCII, Unicode. Character limit due to how many bits are used to represent a character. Logical order of characters in character sets. ⠀ 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 (Current) Compression

This resource covers the common ways vulnerabilities can be removed: penetration testing, anti-malware software, firewalls, user access levels, passwords, encryption, and physical security. 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: How network threats are limited. Common vulnerability prevention methods: Penetration Testing Anti-Malware Software Firewalls User Access Levels Passwords Encryption Physical Security ⠀

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. ⠀ 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

This lesson is about the Von Neumann Architecture and 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 the knowledge of passing of data between registers during the FDE cycle is not required, however, I have found students generally understand the content far better if an animation of this process is shown. You can choose whether to keep or remove this animation in the presentation. Duration: 2-3 Lessons This resource is designed to cover: Common CPU components and their function: ALU, CU, cache, registers. Von Neumann architecture. Fetch-Decode-Execute cycle involving registers. ⠀ I hope you like this resource, other complete lessons in unit 1.1: Purpose of the CPU (Free) Von Neumann Architecture (Current) CPU Performance Embedded Systems (Free)

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. ⠀ 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 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. ⠀ 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 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 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. ⠀

CSV files are important in Python for efficiently storing and handling structured data, enabling easy import / export, data manipulation, and integration with databases. They look tricky at first, but are actually simple to use! Using CSV files is important in efficient programs where large amounts of data is stored. 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.   █▀▀ █▀▀ ▄▀█ ▀█▀ █░█ █▀█ █▀▀ █▀ █▀░ ██▄ █▀█ ░█░ █▄█ █▀▄ ██▄ ▄█ 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: Using Modules - Python Programming Challenges Random Numbers - Python Programming Challenges Encryption - Complete Lesson (OCR GCSE J277) [Free]   █▀▀ █▀█ █ █▀▄▀█ █▀ █▀█ █▄░█ █▄▄ █▀▄ █ █░▀░█ ▄█ █▄█ █░▀█   █░█░█ █ ▀█ ▄▀█ █▀█ █▀▄ ▀▄▀▄▀ █ █▄ █▀█ █▀▄ █▄▀ Feel free to leave any feedback in the review section below! :)

Turtle in Python is used for teaching programming concepts through simple, visual graphics. It provides an intuitive way to draw shapes and patterns, making coding more interactive and engaging. Students will use Turtle to display simple graphics in their programs. 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.   █▀▀ █▀▀ ▄▀█ ▀█▀ █░█ █▀█ █▀▀ █▀ █▀░ ██▄ █▀█ ░█░ █▄█ █▀▄ ██▄ ▄█ Compliant with the AQA/OCR GCSE Computer Science specifications 8525/J277. This resource contains: 10 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. Please note that due to the complexity of Turtle, a tutorial is not provided which other resources typically include.   Other useful resources from us: Exception Handling - Python Programming Challenges Random Numbers - Python Programming Challenges Representing Sound - Complete Lesson (OCR GCSE J277)   █▀▀ █▀█ █ █▀▄▀█ █▀ █▀█ █▄░█ █▄▄ █▀▄ █ █░▀░█ ▄█ █▄█ █░▀█   █░█░█ █ ▀█ ▄▀█ █▀█ █▀▄ ▀▄▀▄▀ █ █▄ █▀█ █▀▄ █▄▀ Feel free to leave any feedback in the review section below! :)

Using try … except (exception handling) is used to respond to exceptions or errors that occur in a program. Students can ensure that the program doesn’t crash unexpectedly and can provide meaningful feedback, which can be used for debugging thereafter. Therefore, getting students familiar with exception handling is essential! 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.   █▀▀ █▀▀ ▄▀█ ▀█▀ █░█ █▀█ █▀▀ █▀ █▀░ ██▄ █▀█ ░█░ █▄█ █▀▄ ██▄ ▄█ 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: Using Modules - Python Programming Challenges Random Numbers - Python Programming Challenges Encryption - Complete Lesson (OCR GCSE J277) [Free]   █▀▀ █▀█ █ █▀▄▀█ █▀ █▀█ █▄░█ █▄▄ █▀▄ █ █░▀░█ ▄█ █▄█ █░▀█   █░█░█ █ ▀█ ▄▀█ █▀█ █▀▄ ▀▄▀▄▀ █ █▄ █▀█ █▀▄ █▄▀ Feel free to leave any feedback in the review section below! :)