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How do computers get hacked?

What are some examples of cyber crime? Watch this clip to find out how viruses, denial of service attacks (DDoS) and phishing scams work. What is a botnet? And how are they used by hackers to bring down websites? Most of the time computers get hacked because of simple mistakes users make. What can users do to better protect ...

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Get connected

This is a unit for Year 7 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 an understanding of the properties of networked systems and ...

Video

What makes the internet run reliably?

Watch this clip to see software engineer Lynn Root and co-creator of the internet Vint Cerf explain what keeps the internet running reliably. When information is sent on the internet, it is broken down into packets that are able to take a number of routes to get from one computer to another. Why might this be important? ...

Video

How 'binary information' is communicated via the internet

Ever wondered how your photos, emails and messages get sent between devices? Watch as software engineer Tess Winlock explains what binary information is, and how it gets from one place to another. Can you explain what 'bits' are? How about 'bytes'? In the past, binary information was sent using physical systems like semaphore ...

Video

Learning about computer languages

What happens when you type a web address or url into your computer and press enter? Watch this clip to find out! Computers and servers talk to each other in a language called HTTP. What are the messages they send and recieve mostly about? HTML is another language, one that tells a web browser how to make a web page look. ...

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Computer chatter 1: Networks and data transmission

In this lesson sequence students relate the concept of transportation systems to help them develop an understanding of the properties of networked systems and the underlying techniques used to transmit and validate data.

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Computer chatter 2: Network performance

In this lesson sequence students build on and extend their knowledge of networks and discuss an inquiry question about Wi-Fi speeds and handling bulk of data transfer needs.

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Networks and performance

This is a unit for Year 8 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 a basic understanding of the terms speed, bandwidth, throughput ...