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 reference or revision guide. 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, C# and pseudocode and is aimed primarily at teachers & students working towards a GCSE in Computer Science

VB.NET, Python and C# are 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, C# 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.
Real variables

Reals are numbers that can contain a decimal place. 

Reals are also known as floats or floating point numbers because they may have a decimal point floating somewhere inside them.

Variables let you store data.

A real variable lets you store a number that can contain a decimal place.

In this example, a variable called height is declared then set to the real value of 6.2

REAL height SET height TO 6.2
' Create a new variable called height Dim height As Double ' set height to 6.2 height = 6.2
# create a new variable called height height = 6.2
height = 6.2
{ real data types not included in Eduqas pseudocode reference so they *shouldn't* come up in an exam } height is real set height = 6.2
// create a new variable called height double height = 6.2;