Computing Tutor

Computer Science made simple

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