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Years 7 and 8 · Technologies · Knowledge and understanding

AC9TDI8K02

investigate how data is transmitted and secured in wired and wireless networks including the internet

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 7 and 8.

AC9TDI8K01

explain how hardware specifications affect performance and select appropriate hardware for particular tasks and workloads

AC9TDI8K03

investigate how digital systems represent text, image and audio data using integers

AC9TDI8K04

explain how and why digital systems represent integers in binary

The same idea, year by year

Where AC9TDI8K02 comes from and where it goes, for a student working below or above Years 7 and 8.

  1. Years 5 and 6AC9TDI6K01investigate the main internal components of common digital systems and their function
  2. Years 5 and 6AC9TDI6K02examine how digital systems form networks to transmit data
  3. Years 5 and 6AC9TDI6K03explain how digital systems represent all data using numbers
  4. Years 5 and 6AC9TDI6K04explore how data can be represented by off and on states (zeros and ones in binary)
  5. Years 9 and 10AC9TDI10K01investigate how hardware and software manage, control and secure access to data in networked digital systems
  6. Years 9 and 10AC9TDI10K02represent documents online as content (text), structure (markup) and presentation (styling) and explain why such representations are important
  7. Years 9 and 10AC9TDI10K03investigate simple data compression techniques

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