GlossariesA Level GlossariesA Level Computer Science GlossaryBackus-Naur Form (BNF)

Backus-Naur Form (BNF) - A Level Computer Science Definition

Reviewed by: James Woodhouse

Last updated

What is Backus-Naur Form?

In A Level Computer Science, Backus-Naur Form (BNF) is a notation used to formally define the syntax of programming languages. It provides a concise way to represent grammar rules, using symbols like <expression> to define structures.

Why is BNF important?

BNF is essential for compiler design and language specification, ensuring precise and unambiguous syntax definitions.

Revision resources to ace your exams

Challenge yourself with our expertly crafted topic questions and strengthen your understanding with our engaging past papers.

A Level Computer Science Revision Resources

Sign up for articles sent directly to your inbox

Receive news, articles and guides directly from our team of experts.

Share this article

James Woodhouse

Reviewer: James Woodhouse

Expertise: Computer Science

James graduated from the University of Sunderland with a degree in ICT and Computing education. He has over 14 years of experience both teaching and leading in Computer Science, specialising in teaching GCSE and A-level. James has held various leadership roles, including Head of Computer Science and coordinator positions for Key Stage 3 and Key Stage 4. James has a keen interest in networking security and technologies aimed at preventing security breaches.

The examiner written revision resources that improve your grades 2x.

Join now