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Computer Science (9645)
25 sections available · 61 chapters available
Free Computer Science (9645) study notes for Oxford AQA International A-level students. Each chapter below covers a key topic with worked examples and practice prompts you can take into the thinka app.
Procedural programming
Fundamental data structures
Unit 1 (AS): Procedural programming and data structures
Data types
Programming concepts
Arrays and lists
Records
Queues
Stacks
Program design
Unit 1 (AS): Program design, searching and sorting
Structured approach to programming
Abstraction and decomposition
Following and writing algorithms
Aspects of software development
Searching algorithms
Sorting algorithms
Unit 2 (AS): Representing data
Number bases
Units of information
The binary number system
Representing characters
Representing graphics
Representing sound
Basic encryption methods
Error detection and correction
Searching and sorting algorithms
Unit 2 (AS): Computer systems, organisation and architecture
Hardware and software
Software
Programming languages and translation software
Internal hardware components of a computer
The processor and its components
The Fetch-Execute cycle and interrupts
Factors affecting processor performance
Representing data
Computer systems
Unit 2 (AS): Storage, logic and assembly language
Secondary storage
Logic gates
Boolean algebra
Instruction format
Assembly language programming
Computer organisation and architecture
Unit 3 (A2 only): Object-oriented and additional programming
Classes, objects and instantiation
Encapsulation
Relationships between classes
Files and recursion
Unit 3 (A2 only): Advanced data structures and algorithms
Graphs
Trees
Hash tables
Priority queues
Dictionaries
Graph algorithms
Tree algorithms
Machine code and assembly language
Unit 4 (A2 only): Functional programming and theory of computation
The functional programming paradigm
Writing functional programs
Lists in functional programming
Finite state machines (FSMs)
Regular expressions and regular languages
Turing machines
Backus-Naur Form (BNF) and syntax diagrams
Classification of algorithms
Object-oriented and additional programming
Advanced data structures
Unit 4 (A2 only): Networking, databases and artificial intelligence
Communications
Networking
The Internet and the TCP/IP protocol stack
Cyber security
Relational databases
Big data
Applications, benefits and risks of artificial intelligence
Creating artificially intelligent systems
Advanced algorithms
Functional programming
Theory of computation
Networking and cyber security
The Transmission Control Protocol/Internet Protocol (TCP/IP) protocol
Databases
Artificial intelligence
Benefits and risks of artificial intelligence
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