Computer Studies·Data representation · NSSCO 4.1
Hexadecimal: conversion, why hex is used & its applications
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Binary numbers get long and easy to miscopy. Hexadecimal is a shorter base-16 code that computer people use every day. In this lesson you will convert between denary, binary and hex, and see hex at work in web colours, MAC addresses and debugging.
What you'll learn in this lesson
By the end you should be able to (NSSCO Computer Studies 4.1):
- Convert positive denary values to hexadecimal and vice versa up to 4 hexadecimal digits (integers only)
- Explain why hexadecimal notation may be the preferred number system
- Convert binary to hexadecimal and vice versa using positive integers up to 16 bits of binary
- Explain how hexadecimal numbers are used in: defining colours in HTML (Hypertext Markup Language), Media Access Control (MAC) addresses, assembly languages and machine code, debugging
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