Computer Science Data Representation Complete Pack

Data Representation Complete Pack

Master one of the most heavily examined topics in Computer Science. This complete Data Representation pack covers everything you need to understand, revise, and answer exam questions with confidence.

What's inside:

📘 1.1 Binary and Hexadecimal Convert between binary, denary, and hexadecimal. Understand why computers use different number systems and how to switch between them under exam conditions.

📘 1.2 Binary Manipulation and Negative Numbers Master binary addition, overflow errors, two's complement, and how computers represent negative values.

📘 1.3 Text, Images and Sound Learn how computers represent characters using ASCII and Unicode, how images are stored using pixels and colour depth, and how sound is captured through sampling.

📘 1.4 Measuring Data Storage Understand bits, bytes, kilobytes, megabytes, gigabytes, and terabytes. Calculate file sizes for text, images, and sound files — a favourite exam question type.

📘 1.5 Data Compression Compare lossy and lossless compression, understand run-length encoding, and explain why compression matters for storage and transmission.

🍎 Teacher Sheet Included Every section comes with a full teacher copy complete with explanations, answers, and guidance notes — ready to use straight in the classroom.

✅ Student-friendly and exam-focused

✅ Teacher sheet with full explanations included

✅ Aligned to Computer Science syllabuses worldwide

✅ Instant PDF download

✅ Perfect for classroom use, homework, and independent revision