A retrieval practice booklet for Pearson Edexcel GCSE Computer Science (Paper 1). This booklet contains 48 retrieval practice activities covering the non-programming Computer Science theory content. Booklet is provided as a high quality, printable PDF. Included activities: Decomposition & Abstraction: Picture Prompt Pseudocode & Flowcharts: Brain Dump Arithmetic Operators: Blockbusters Relational Operators: Create your own questions Binary Operators: Challenge Grid Program Errors: Tell me 4 Sorting Algorithms: Lists Search Algorithms: Brain Dump Truth Tables: Brain Dump Binary vs Denary: Brain Dump Binary to Denary (and back again): Challenge Grid Hexadecimal: Tell me 4 Binary to Hexadecimal (and back again): Challenge Grid Binary Addition: Blockbuster Binary Shift: Create your own questions Unsigned & Signed Binary Numbers: Challenge Grid Characters: Cops & Robbers Graphics: Brain Dump Sound: Connections Units: Challenge Grid Compression: Cops & Robbers Von Neumann Architecture: Challenge Grid Fetch Decode Execute Cycle: Lists Main Memory: Retrieval Grid Storage Types: Picture Prompts Storage Devices: Tell me 4 Embedded Systems: Brain Dump Operating System: Lists Utility Software: Blockbusters Low & High Level Programming Languages: Retrieval Grid Compliers & Interpreters: Cops & Robbers LAN and WAN: Blockbusters The Internet: Retrieval Grid Wired vs Wireless: Mind Map Network Speed: Challenge Grid Protocols: Lists TCP/IP & Layers: Cake Topologies: Picture Prompt Network Hardware: Picture Prompts Network Security (Threats): Cops & Robbers Network Security (Prevention): Cops & Robbers Environment: Knowledge Tree Personal Data: Connections Artificial Intelligence: Connections Legislation (Copyright, Design, Trademarks): Tell me 5 Open Source vs Proprietary Licences: Brain Dump Cyber Security Threat: Brain Dump Cyber Security Threat Prevention: Mind Map