Welcome to the Data Representation Hub.
The simple revision tools you knew have been completely rebuilt. This is the new Pro-Series Learning Suite — the most effective way to turn your GCSE Computer Science revision into results.
Explore The QuizzesYour Central Revision Hub
Click the image below to jump to the full list of interactive quizzes included in the Pro-Series Suite.
Not Just a Quiz. A Complete Learning System.
We analyzed every aspect of effective revision and built a suite of tools that guide you from confusion to confidence.
Guided Learning Path
Don't just jump into a test. Our new 3-stage path—Welcome, Tutorial, Quiz—warms you up, teaches you the method with detailed examples, and then tests your knowledge, preventing cognitive overload and building real confidence.
Crystal-Clear Explanations
Gone are the simple solutions. Our new walkthroughs use color-coded highlights for binary, decimal, and results, making complex steps like Two's Complement arithmetic incredibly easy to follow.
Contextual Calculator
Struggling with the arithmetic in a file size calculation? A sleek, built-in calculator now appears automatically for any question that needs it, keeping you focused on the *method*, not the maths.
What's Inside The Pro-Series Suite?
Your purchase includes a .zip file containing 10 standalone, interactive HTML quizzes. No installation needed—just open in any web browser and start revising!
1. Data Representation Basics
Covers the fundamentals of bits, bytes, and why computers use binary. Essential for all data topics.
2. Comprehensive Data Representation
A mixed quiz covering number systems, ASCII/Unicode, compression, and error checking (parity bits).
3. Sound Representation & Calculation
Master sample rate, bit depth, and file size calculations for audio files.
4. Image Representation & Calculation
Focus on pixels, colour depth, resolution, and calculating bitmap image file sizes.
5. Binary to Decimal Conversion
Perfect the core skill of converting binary numbers into the decimal system we use every day.
6. Decimal & Hexadecimal Conversion
Learn to convert both ways between decimal and the hex system used for colours and memory addresses.
7. Decimal to Binary Conversion
Master the "repeated division by 2" method for converting any decimal number to binary.
8. Two's Complement Conversion
The essential quiz for learning how computers represent negative numbers using binary.
9. Two's Complement Arithmetic
Apply your knowledge to perform binary addition with positive and negative numbers.
10. Video & Vector Graphics
Tackle video file size calculations and understand the principles behind scalable vector graphics.
Ready to Ace Your Exam?
Your purchase includes a .zip file containing all 10 quizzes, ready to use offline, anytime. Gain lifetime access to the complete Pro-Series Learning Suite and all future updates. One simple price for an invaluable revision tool.