Scenario: Imagine you're designing an image-heavy mobile app. You need to optimise storage by estimating file sizes of images before upload. This skill helps you balance image quality with performance.
This quiz is based on Paper 1 - Topic 1.1.3: Images from the Cambridge IGCSE Computer Science (0478/0984) syllabus. You must understand how to calculate image file size using the formula: width × height × colour depth in bits. Then convert to bytes (÷8) and kilobytes (÷1024).