1.2.4 Data Representation

How computers store Numbers, Characters, Images, and Sound using binary.

Binary Numbers

Binary, Hexadecimal, Binary Shifts and Addition.

Learn Numbers

Characters

ASCII vs Unicode character sets.

Decode Text

Images

Bitmaps, Colour Depth, and Resolution.

View Images

Sound

Sample Rate, Bit Depth, and ADC conversion.

Hear Sound

Hex Attack

Game: Convert Binary/Hex to Denary under pressure.

Play Game

The Pixelator

Tool: Visualise Resolution & Colour Depth.

Launch Pixelator

Audio Grapher

Tool: Visualise Sampling and Bit Depth.

View Grapher

Interactive Revision Labs

HIGH FIDELITY

The Pixel Lab

Multi-mission lab: Manual GPU painting, Binary Surgeon (error spotting), and Chroma Logic.

Launch Lab

Bit Size Master

Complete module: Practice size calculations for Images, Sound, Text, and Storage Units.

Launch Masterclass

Storage Maths Lab

Interactive lesson on the 1000 rule, storage capacity, and the "Available Space" trap.

Open Lab

Binary Cruncher

Real-time binary-to-denary calculator with place-value visualization.

Launch Cruncher

Addition Mastery

Interactive 8-bit binary addition grid with carry indicators.

Master Addition