CAMBRIDGE IGCSE (0478/0984) Calculating the size of an image and sound file.
In this video, you will learn how to calculate the file size of both images and sound—an important topic in Cambridge IGCSE Computer Science.
We break down the formulas step by step so you can confidently solve exam-style questions.
🎯 What you will learn:
✔️ How to calculate image file size
✔️ The role of resolution and colour depth
✔️ How to calculate sound file size
✔️ The effect of sample rate, bit depth, and duration
✔️ Converting file sizes into KB, MB, and GB
📌 Key Concepts Covered:
Image file size = Resolution × Colour Depth
Sound file size = Sample Rate × Bit Depth × Duration
Units of data storage (bytes, KB, MB, GB)
Factors affecting file size and quality
📝 Exam Focus:
This lesson helps you:
Solve calculation questions step by step
Understand how different factors affect file size
Prepare for IGCSE exam questions on data representation
💡 Perfect for students studying IGCSE Computer Science (0478/0984) who want to master file size calculations.