AQA GCSE Computer Science (8525)

Every section of the specification, and the BugBot lesson that covers it. 35 of 35 sections have a lesson.

Start in the simulator
RefSpecification sectionLessons
3.1.1Representing algorithmsF4.4 Decomposition and abstraction, F5.1 What an algorithm is, F5.2 Flowcharts, F5.3 Pseudocode and the exam reference language, F5.4 Trace tables
3.1.2Efficiency of algorithmsF5.9 Merge sort and comparing algorithms
3.1.3Searching algorithmsF5.5 Linear search, F5.6 Binary search
3.1.4Sorting algorithmsF5.7 Bubble sort, F5.8 Insertion sort
3.2.1Data typesF1.8 Data types and casting
3.2.2Programming conceptsF1.1 What a program is, F1.5 Comments and readable code, F1.6 Variables, constants and assignment, F2.1 Blocks and indentation, F2.4 Nested selection and match, F2.5 Count-controlled loops: for, F2.6 Condition-controlled loops: while, F2.7 Loop patterns, F13.9 Project: the revision robot
3.2.3Arithmetic operations in a programming languageF1.9 Arithmetic operators
3.2.4Relational operations in a programming languageF2.2 Selection: if
3.2.5Boolean operations in a programming languageF2.3 else, elif and Boolean operators
3.2.6Data structuresF3.3 Lists: one-dimensional arrays, F3.4 Iterating over a list, F3.5 Two-dimensional arrays, F3.6 Records
3.2.7Input/outputF1.2 Output: print, F1.7 Input from the user
3.2.8String handling operations in a programming languageF3.1 String handling, F3.2 Character codes and conversion
3.2.9Random number generation in a programming languageF3.7 Random numbers
3.2.10Structured programming and subroutines (procedures and functions)F1.3 Calling functions, F4.1 Writing functions, F4.2 Parameters and return values, F4.3 Local and global variables, F4.5 Libraries and your own modules
3.2.11Robust and secure programmingF1.4 Errors: syntax, runtime and logic, F6.1 Defensive design and validation, F6.2 Authentication, F6.3 Testing and test data, F6.4 Debugging logic errors
3.3.1Number basesF8.2 Binary and denary
3.3.2Converting between number basesF8.2 Binary and denary, F8.3 Hexadecimal, F13.5 Number and data questions
3.3.3Units of informationF8.1 Bits, bytes and units
3.3.4Binary arithmeticF8.4 Binary addition, overflow and shifts
3.3.5Character encodingF8.6 Characters: ASCII and Unicode
3.3.6Representing imagesF8.7 Images
3.3.7Representing soundF8.8 Sound
3.3.8Data compressionF8.9 Compression
3.4.1Hardware and softwareF9.3 Hardware, software and von Neumann
3.4.2Boolean logicF9.1 Logic gates and truth tables, F9.2 Logic circuits and expressions
3.4.3Software classificationF9.9 Operating systems and utilities
3.4.4Classification of programming languages and translatorsF6.5 Languages and translators, F6.6 The IDE
3.4.5Systems architectureF9.4 The CPU and fetch-execute, F9.5 CPU performance, F9.6 Memory, F9.7 Secondary storage, F9.8 Embedded systems: inside BugBot
3.5Fundamentals of computer networksF10.1 What is a network?, F10.2 Network hardware and connections, F10.4 Network topologies, F10.5 Addresses and packets, F10.7 Protocols, F10.8 Layers, F10.9 Project: reliable delivery
3.6.1Fundamentals of cyber securityF11.1 Why cyber security
3.6.2Cyber security threatsF11.2 Malware, F11.3 Social engineering
3.6.3Methods to detect and prevent cyber security threatsF11.5 Passwords and authentication, F11.6 Encryption, F11.7 Defending a network, F11.8 Writing secure programs, F11.9 Project: secure the robot
3.7.1Relational databasesF7.2 Relational databases
3.7.2Structured query language (SQL)F7.3 SQL: SELECT, F7.4 SQL: two tables and changing data
3.8Ethical, legal and environmental impacts of digital technology on wider society, including issues of privacyF12.1 Impacts of technology, F12.2 Personal data and privacy, F12.3 Computer misuse and the law, F12.4 Copyright and licences, F12.5 Technology and the environment, F12.6 The digital divide and accessibility, F12.7 AI, robots and bias, F12.8 Technology, jobs and daily life, F12.9 Project: an impact report, F13.6 Long answer questions