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

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This resource is designed as a quick revision guide for use by students during a NEA providing that internet access is 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.

Introduction

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.

Top Tips:

  • Explore the different categories of skills at the top of this page
    Each skill has example code in VB.NET, Python and Pseudocode for Edexcel, Eduqas and OCR GCSE.
  • Search for a specific skill
    If you know what you're looking for, use the search bar above the categories list.
Write a string to a file
   

A string is some text that can contain more than one letter, number, space or punctuation mark.

This example writes the string "Hello world" to the file "output.txt"

WRITE "output.txt" "Hello world"
My.Computer.FileSystem.WriteAllText("output.txt", "Hello world", False) ' Change the False to True if you want to ' append text to the end of the file ' rather than overwrite the file
# open the file f = open("output.txt", "w") # write to the file f.write("Hello world") # close the file so it can be read by other programs f.close()
// open the file f = openWrite("output.txt") // write to the file f.writeLine("Hello world") // close the file so it can be read by other programs f.close()
{ not specified in eduqas pseudocode reference }

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