That Blue Square Thing – AQA GCSE Computer Science

Key Guides:

Binary maths – a summary of key points

A single slide to check when you're asked "how many binary numbers can you represent with 5 bits" or "what is the largest number you can represent using 3 bits". That confusing bit. For more detail see the Unit 3 pages.

Formulae – the ones you need to know

This is the 3 (or 5) formulae you need to know for unit 3.

SQL syntax

AQA Computer Science GCSE

2022 Weekly Revision Questions

This is all the revision exercises I did in class back in 2022. I'm putting them here so that you can use them if you want to. There are answers for each set I think.

There's a mix of paper 1 and paper 2 questions. If you take a look at the menu bar on the left there are also some programming questions written up for you.

25 February: Binary and Hex Q – SQL Q – Logic Q – Paper 1 Q

4 March: Binary and Hex Q – Image Rep Q – Unit 5 syllabus document – Unit 5 booklet – Networks Q

4 March requested content: Advantages and Disadvantages of Wired and Wireless networks – Protocols summary

11 March: Binary and Hex Q – Audio Rep Q (worked example for audio file size) – Logic Q (logic quickfire resource) – Unit 6 syllabus document – Unit 6 booklet – Security Q

> Answers

18 March: Binary and Hex Q – Character Rep Q – Logic Q (logic quickfire resource) – SQL Q – Unit 4 syllabus document – Unit 4 booklet – Unit 4 questions

25 March: Binary and Hex Q – Compression Q – Complex Huffman Q – SQL Q – Unit 3 syllabus document – Unit 3 booklet – Unit 7 booklet – Unit 8 booklet

1 April: Binary and Hex Q – Audio Q – CPU memory Q – SQL Q (SQL syntax rules)

> Answers

8 April: Binary and Hex Q – Logic Q – Units 3, 4 and 5 Q (Wireless vs Wired – Protocols) – SQL Q (SQL syntax rules)

15 April: Binary and Hex Q – SQL Q (SQL syntax rules)

22 April: Unit 8 revision – Slides from class – Privacy Question – Highway Code: Watching TV in self-driving cars to be allowed – update on interim law in the UK, April 2022