Denary numbers - GCSE Computer Science Definition

Reviewed by: Robert Hampton

Last updated

Denary numbers, also known as decimal numbers, refer to the base-10 numbering system that is most commonly used in everyday life. This system consists of ten unique digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. In the context of GCSE Computer Science, understanding denary numbers is fundamental as they represent the standard way of counting and performing arithmetic operations. Each digit in a denary number has a place value that is a power of ten, making it straightforward to comprehend and use for various calculations. While studying computer science, students will learn to convert between denary and other number systems such as binary or hexadecimal, which are frequently used in computing technologies.

Need help reaching your target grade? Explore our notes, questions by topic and worked solutions, tailor-made for GCSE Computer Science.

Explore GCSE Computer Science

Share this article

Robert Hampton

Reviewer: Robert Hampton

Expertise: Computer Science Content Creator

Rob has over 16 years' experience teaching Computer Science and ICT at KS3 & GCSE levels. Rob has demonstrated strong leadership as Head of Department since 2012 and previously supported teacher development as a Specialist Leader of Education, empowering departments to excel in Computer Science. Beyond his tech expertise, Robert embraces the virtual world as an avid gamer, conquering digital battlefields when he's not coding.

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

Join now