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Digital systems

Find out about Digital systems. Use this topic from the Digital Technologies Hub to learn more, get ideas about how to teach about it, find out what other schools are doing and use the applications and games in the classroom.

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How is your personal information kept secret on the internet?

Lots of private data is exchanged over the internet. What are some examples? As Mia Epner explains, cryptography allows for the secure transfer of data online. How does encryption work? And what is a key? Today information is encrypted using 256 bit keys. This keeps information safe because it means there are way too many ...

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What are IP addresses?

Meet Vint Cerf, the co-creator of the internet! In this clip, Vint and software engineer Paola Mejia explore the way computer networks talk to each other. Find out what an IP address is and why it's similar to a street address. What's the domain name system? And how does your computer find out the IP address of a website ...

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Cyber security analysis from The Conversation

This is a collection of articles about cyber security. It includes articles on cyber-espionaage, cyber crime, data security, government policy around cyber security, and international perspectives including from US, China and UK. The articles are written in plain language and are authored by experts from universities in ...

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Connected via a network

This is a unit for Year 9 from the Scope and sequence resources from the DT Hub. The topic of digital systems is organised into four key elements. Use this flow of activities to plan and assess students against the relevant achievement standards. Students develop and understanding that digital systems must be robust and ...

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Computing turns 60

This is a collection of eight articles that mark the 60th anniversary of the first computer in an Australian university. The series covers topics from the history of computing, its role in studying global health or species conservation, and how computers can help understand the brain.

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Keeping secrets

In this lesson sequence students examine cryptography and modern encryption methods for transmitting digital data securely. Encryption of data is a means of protecting data, one example being the use of secret and public keys.

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Talk to me!

In this lesson sequence that focuses on input devices, students are explore the possibilities and new types of functionality enabled by these technologies over time.