Digital technologies / Year 9 and 10 / Digital Technologies Knowledge and Understanding

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Curriculum content descriptions

Analyse simple compression of data and how content data are separated from presentation (ACTDIK035)

Elaborations
  • explaining how simple compression schemes reduce the size of repetitive data, for example how run length encoding reduces the size of images
  • explaining the difference between lossy and lossless compression, for example the difference between JPEG and PNG images
  • explaining codecs for audio-visual compression, for example common codecs for video formats
  • generating a layout or report in a database or applying a style sheet to a web page
General capabilities
  • Critical and creative thinking Critical and creative thinking
  • ICT capability Information and Communication Technology (ICT) capability
ScOT terms

Data representation,  Computer files,  Data compression

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