How Computers Store Images: Pixels, Resolution & Colour Depth
📌 YouTube Description
Ever wondered how computers understand pictures? In this video, we break down how digital images are stored using three key ideas:
Pixels – the tiny building blocks that make up every picture.
Resolution – how many pixels an image has, and why more pixels means sharper detail.
Colour Depth – how binary digits (0s and 1s) are used to store colours, and how more bits per pixel mean more realistic images.
Using fun examples (including a puppy picture 🐶), we’ll show you how images are built up from squares, how pixel count affects clarity, and why 8-bit vs 32-bit colour makes a huge difference.
This lesson is part of Unit 9A: Pixels & Sound Waves – How Computers See and Hear for Key Stage 3 Computer Science.
👉 Perfect for Year 9 students, beginners learning digital media, or anyone curious about how computers turn numbers into pictures.
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