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Class 8 · Computing

Image storage

Interactive explanation Gamified quiz, feedback & rewards

0 XP0 mastered
Suggested-level exploration · Learning goals & preparation

By the end, you can…

  • Explain Bytes = width × height × bits per pixel / 8
  • Change one input at a time and predict its effect before checking the model.
  • Apply the relationship in a quiz and explain the reasoning behind your answer.

Useful preparation: Whole numbers, basic arithmetic and following ordered instructions. Suggested previous stop: Bits and binary capacity.

This topic has a suggested learning level. A matching chapter in the current NCERT edition has not been verified, so it is not labelled as syllabus coverage.

Interactive exploration · Class 8

Image storage

Class 8
Uncompressed size (bytes)08.4e+51.7e+62.5e+63.4e+61005501000Image side (pixels)Bits per pixel held at 24 · scale adjusts to values
The relationshipBytes = width × height × bits per pixel / 8
01 · How to explore

Make the idea your own

  1. 1Read the inputs and predict what will change.
  2. 2Change one parameter while keeping the other fixed.
  3. 3Explain the result using the diagram and the live values.
02 · Take it further

Notice the pattern

Doubling both dimensions produces four times as many pixels.