Representation of text, images and sound
Why this, why now
In this unit, pupils will discover how letters, images and sounds are represented with binary digits. They will also explore the factors that impact the quality of those representations and investigate the effects these quality choices have on file size.
Prior knowledge requirements
- Ardaydu waa inay yaqaanaan aasaaska maadada.
- Ardaydu waa inay awoodaan inay raacaan tilmaamo fudud.
Unit 13 / 16
Representation of text, images and sound
In this unit, pupils will discover how letters, images and sounds are represented with binary digits. They will also explore the factors that impact the quality of those representations and investigate the effects these quality choices have on file size.
12 lessons- Metadata
- Representation of sound
- Calculation of sound file sizes
- Representing sound
- Text file size calculation
- Representing text using Unicode and ASCII
- Representing bitmap images
- Bitmap file size calculation
- Calculation of sound file size
- Representation using binary sequences
- Representing text using ASCII and Unicode
- Text file size calculations