# AQA GCSE Data Representation

## Binary Tutorial #2: Converting between Binary and Decimal

## Hexadecimal Tutorial #1: Converting Decimal to Hex

## Hexadecimal Tutorial #2: Converting Hex to Decimal

## Binary Tutorial #3: Decimal and Binary prefixes for describing quantities of bytes

## Binary Tutorial #4 : Addition of Binary Numbers

## Logical (Binary) Shifts

## ASCII and Unicode

## Basics of Representing Images

## Bitmap File Sizes

## Storing Analogue Sound Digitally

## Data Compression Basics

## The Huffman Coding Compression Algorithm

## Run Length Encoding