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Oak National Academy
Oak National Academy
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Representation of text, images and sound

Year 10 • Computer Science • GCSE • OCR
We've put the lessons in order helping you build on what you've learned before so it’s best to start with the first lesson of a unit.

Choose a lesson (8)

1
Representation using binary sequences
2
Representing text using ASCII and Unicode
3
Text file size calculation
4
Representing bitmap images
5
Bitmap file size calculation
6
Representation of sound
7
Calculation of sound file sizes
8
Metadata