WJEC A Level Computer Science Teaching Resources & Lesson

WJEC A Level Computer Science mapping file. Download our comprehensive teaching resources and use the mapping table to align to the WJEC examination board. Updated and aligned to the new 2020 specification.

	WJEC specification	A-Level Document Reference	Additional content
1	AS units		Cell
Unit 1	Fundamentals of computer science	Cell	Cell
1	Hardware and communication	01. Computer architecture 02. Functions and characteristics of CPU 04. Input devices 05. Output devices 06. Data Storage 19. Introduction to computer networks 21. Network, protocols and layers 22. Internet technologies	Cell
2	Logical operations	39. Logic gates and circuits 28A. Monitoring and control systems 40. de Morgan's laws 41. Karnaugh maps	Cell
3	Data transmission	21A. Data transmission technologies	Cell
4	Data representation and data types	28. Binary 29. Hexadecimal 30. Floating point numbers 31. Character sets	Cell
5	Data Structures	32. Arrays, tuples and records	Cell
6	Organisation of data	48A. File and exception handling	Cell
7	Database systems	15. Introduction to databases	Cell
8	The operating system	07. Systems software	Cell
Unit 2	Practical programming to solve problems	Cell	Cell
9	Algorithms and programs	11. Introduction to algorithms 11B. Structure charts 46. Introduction to programming 47. Basic programming constructs 48. Functions and procedures 49. Integrated development environment 51. Computational methods 53. Searching algorithms 54. Sorting algorithms 14. Compression, encryption and hashing 09. Translators	Cell
10	Principles of programming	12. Procedural and object-oriented languages 24. Designing web pages using HTML and CSS 25. JavaScript 25A. Server-side scripting 50. Object oriented techniques 09. Translators	Cell
11	System analysis	10. Software development lifecycle 45. Computational thinking 49. Integrated development envrironment 51. Computational methods 08. Categories of software	Cell
12	Software engineering	49. Integrated development environment	Cell
13	Program construction	09. Translators	Cell
14	The need for different types of software systems and their attributes	08. Categories of software	Cell
15	Practical programming	Cell	Cell
16	Data security and integrity processes	14. Compression, encryption and hashing 23. Network security	Cell
17	Economic, moral, legal, ethical and cultural issues relating to computer science	43. Computing related legislation 44. Moral and ethical issues	Cell
2	A2 units	Cell	Cell
Unit 3	Programming and system development	Cell	Cell
1	Data structures	32. Arrays, tuples and records 33. Lists and linked lists 34. Stacks 35. Queues 37. Trees	Cell
2	Logical operations	39. Logic gates and circuits 40. de Morgan's laws 41. Karnaugh maps	Cell
3	Algorithms and programs	11. Introduction to algorithms 46. Introduction to programming 47. Basic programming constructs 48. Functions and procedures 49. Integrated development environment 52. Evaluation and design of algorithms 53. Searching algorithms 54. Sorting algorithms 55. Algorithms for main data structures 56. Dijkstra’s shortest path algorithm and A* algorithm 14. Compression, encryption and hashing 09. Translators	Cell
4	Principles of programming	12. Procedural and object-oriented languages 50. Object oriented techniques 58. Regular languages: expressions, BNF and RPN 09. Translators	Cell
5	System analysis	10. Software development lifecycle	Cell
6	System design	Cell	Cell
7	Software engineering	Cell	Cell
8	Program construction	09. Translators	Cell
9	Economic, moral, legal, ethical and cultural issues relating to computer science	44. Moral and ethical issues	Cell
Unit 4	Computer Architecture, Data, Communication and Applications	Cell	Cell
1	Hardware and communication	01. Computer architecture 02. Functions and characteristics of CPU 03. Types of processor 13. Assembly languages 04. Input devices 05. Output devices 19. Introduction to computer networks	Cell
2	Data transmission	21A. Data transmission technologies 22. Internet technologies	Cell
3	Data representation and data types	28. Binary 29. Hexadecimal 30. Floating point numbers	Cell
4	Organisation and structure of data	48A. Files and exception handling 38. Hash tables	Cell
5	Databases and distributed systems	15. Introduction to databases 16. Relational databases 17. Structured Query Language (SQL) 18. Transaction processing and ACID 18A. Database Management System (DBMS) 60. Big Data	Cell
6	The operating system	07. System Software	Cell
7	The need for different types of software systems and their attributes	08. Categories of software 28A. Monitoring and control systems 26. Search engine indexing	Cell
8	Data security and integrity processes	14. Compression, encryption and hashing 23. Network security	Cell