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Years 9 and 10 · Technologies · Knowledge and understanding

AC9TDI10K03

investigate simple data compression techniques

The content description above is Australian Curriculum, Assessment and Reporting Authority (ACARA)’s own wording, reproduced unmodified from the Australian Curriculum v9.0, read in August 2026, and licensed CC BY 4.0.

© Australian Curriculum, Assessment and Reporting Authority (ACARA) 2010 to present, unless otherwise indicated. This material was downloaded from the Australian Curriculum website and was not modified. ACARA does not endorse this product and is not affiliated with it.

Taught alongside it

The rest of Knowledge and understanding in Years 9 and 10.

AC9TDI10K01

investigate how hardware and software manage, control and secure access to data in networked digital systems

AC9TDI10K02

represent documents online as content (text), structure (markup) and presentation (styling) and explain why such representations are important

The same idea, year by year

Where AC9TDI10K03 comes from and where it goes, for a student working below or above Years 9 and 10.

  1. Years 7 and 8AC9TDI8K01explain how hardware specifications affect performance and select appropriate hardware for particular tasks and workloads
  2. Years 7 and 8AC9TDI8K02investigate how data is transmitted and secured in wired and wireless networks including the internet
  3. Years 7 and 8AC9TDI8K03investigate how digital systems represent text, image and audio data using integers
  4. Years 7 and 8AC9TDI8K04explain how and why digital systems represent integers in binary

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