Categories: All Variables and Constants  String manipulation  Builtin functions  Input and output  Arrays  Conditional logic  Repetition / Iteration  Functions / Procedures 


This resource is designed as a quick revision guide and must not be used by students during a NEA where internet access is not allowed. It has not been endorsed by any exam boards. If you spot any mistakes, please let me know and I'll fix them asap.


This website aims to give a quick reference for VB.NET, Python and pseudocode and is aimed primarily at teachers & students working towards a GCSE in Computer Science

VB.NET and Python are both programming languages designed to be understood and followed by computers. Pseudocode is not a programming language: it's written to be understood by humans so that they can turn it into any programming language.

Each exam board has published a document saying how they'll write pseudocode in their exams. The whole idea of syntax (a set of rules) for pseudocode is silly - it's not designed to be a programming language that is run by a computer. With this in mind, all exam boards state that you don't have to follow the syntax for 'their' version of pseudocode when you write out your own algorithms, but you should be able to understand their version of pseudocode when reading an algorithm in an exam.

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    Each skill has example code in VB.NET, Python and Pseudocode for Edexcel, Eduqas and OCR GCSE.
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Create a 2D array

If an array is like a list of data, a 2d array is like a grid of data where the data is stored in one variable but organised into rows and columns like a spreadsheet.

This example stores details of 3 different fruit for a supermarket.

It will then display the colour of the first fruit.

The first index will select the row then the second index selects the column

SET fruit TO [["Plum", "Purple"], ["Apple", "Red"], ["Banana", "Yellow"]] SEND fruit[0,1] TO DISPLAY
Dim fruit As String(,) fruit = {{"Plum", "Purple"}, {"Apple", "Red"}, {"Banana", "Yellow"}} MsgBox(fruit(0,1))
fruit = [["Plumb", "Purple"], ["Apple", "Red"], ["Banana", "Yellow"]] print(fruit[0][1])
array fruit[3][2] fruit[0][0] = "Plumb" fruit[0][1] = "Purple" fruit[1][0] = "Apple" fruit[1][1] = "Red" fruit[2][0] = "Banana" fruit[2][1] = "Yellow" print(fruit[0][1])
{ not specified in eduqas pseudocode reference }