IGCSE Computer Science 0478: Calculating image and sound file sizes
Students learn how resolution, colour depth, sample rate, sample resolution and length determine file size, and how to calculate image and sound file sizes in the unit asked.
One content description from the full IGCSE Computer Science 0478 — 1.3 Data Storage and Compression journey. All 13 modules below are in that journey too, with the same content — add just these to a class, or the whole strand.
Modules (13)
1
Image resolution
2
Colour depth
3
Number of colours from the colour depth
4
Counting the pixels in an image
5
Calculating the size of a bitmap image
6
Image file size in the unit asked
7
Sample rate and audio quality
8
Sample resolution
9
Hertz and kilohertz
10
Converting the length of a sound to seconds
11
Calculating the size of a sound file
12
Sound file size in the unit asked
13
Checking whether a file fits in the available storage
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