077. OCR A Level (H046-H446) SLR13 – 1.4 Hexadecimal representation

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About this video

OCR Specification Reference
AS Level 1.4.1e
A Level 1.4.1e

Large binary number sequences become difficult to manage, so we often use hexadecimal, the base sixteen number system to represent nibbles of data in one symbol. This video takes a look at this number system.

Key questions:

- How can we use hexadecimal to represent positive integers?
- How does hexadecimal help us when representing large binary numbers?

00:00 Hexadecimal representation
00:07 Intro
00:12 Hexadecimal (Base 16)
03:59 Why hexadecimal is used in computer science
05:45 Key questions
06:01 Going beyond the specification
06:12 Other base number systems
06:43 Outro

Last updated: 01.07.26

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• SLR 13 – Data types