2. Python Camp
Alan led this session looking at slicing strings and allowing further practice.
Session 10: The Examined Component
Specifications
Overview of content
Resources

3. Specifications
OCR
AQA
Edexcel / Pearson
WJEC / Eduqas
Other
Undecided

4. Structure OCR, AQA, EDEXCEL: 2x written exams 1x NEA WJEC:
1x written exam 1x Greenfoot exam 1x NEA

5. Outline Content

6. Hardware Input / Output devices Memory (RAM/ROM and Cache/RAM/VM)
CPU (clocks, caches, cores)
Fetch-Execute Cycle
Secondary storage (optical/magnetic/solid state)
Embedded systems

7. Hardware WJEC - RISC & CISC WJEC - GPU, soundcards, motherboards
AQA - no specific registers

8. Logic
Gates (AND / OR / NOT)
Truth tables
Boolean operations

9. Networks LAN vs WAN vs standalone
Topologies (bus / ring / star / mesh*)
Circuit switching / packet switching
Protocols
IP / MAC / DNS
TCP/IP (awareness of layers)
Internet vs www

10. Networks WJEC - TCP/IP 5 layer model WJEC - calculating routing costs
OCR - network hardware
OCR - wifi frequency and channels
OCR - no bus or ring
AQA - PAN (Bluetooth)
AQA - no ring or mesh
AQA - TCP/IP 4 layer model

11. Data Representation Binary / Denary / Hexadecimal up to 255
Shifts, binary addition & overflow
Representing characters / ASCII / Unicode
Representing graphics
Representing sound
Metadata
Compression

12. Data Representation WJEC - Up to 16 bit (65 535)
Edexcel & AQA - Run Length Encoding

13. Data Structure Data types Data structures (1D and 2D arrays)
Files and records
Validation and verification

14. Data Structure
Edexcel - databases (tables, records, fields, relationships, keys)

15. Software Operating systems Utility software
Types of programming language
Translators
IDEs

16. Security Data security / policies Data management / backups
Network security
Cybersecurity

17. Ethical Ethical impacts of computer science
Legal impacts of computer science
Environmental impacts of computer science

18. Ethical OCR - specific inclusion of open-source
OCR - specific reference to legal acts

19. Problem Solving Abstraction Decomposition
Algorithms (pseudocode and flowcharts)
Programming constructs (seq / sel / iter)
Operations (arithmetic & string handling)
Functions & procedures
Debugging & types of errors
Trace tables

20. Specific Languages WJEC - OOP with Java/Greenfoot WJEC - HTML
WJEC - Assembly
OCR - SQL

21. Specific Algorithms Bubble Sort Merge Sort Insertion Sort (OCR only)
Linear Search
Binary Search
Caesar Cipher (Edexcel only)
Huffman coding (AQA only)

22. Resources Computing At School community site TES
Embarrassment of wealth