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Digital technologies / Year 7 and 8 / Digital Technologies Knowledge and Understanding

View on Australian Curriculum website Australian Curriculum, Assessment and Reporting Authority
Curriculum content descriptions

Investigate how data is transmitted and secured in wired, wireless and mobile networks, and how the specifications affect performance (ACTDIK023)

Elaborations
  • explaining that networks have components that control the movement of data, for example routers, hubs, switches and bridges manage data traffic and that the characteristics of these components impact on the operation (speed and security) of networks
  • explaining how cellular radio towers (transceivers) and mobile phones work together to create mobile networks
  • comparing the reliability and speed of transmitting data through wireless, wired and mobile networks
  • recognising that there are different communications protocols for transmitting data in networks, for example hypertext transfer protocol (HTTP) is used for transferring web page files in a browser, file transfer protocol (FTP) is used for sending and receiving any files over a network and transmission control protocol/internet protocol (TCP/IP) is used for controlling file transfers over the internet
General capabilities
  • Literacy Literacy
  • Critical and creative thinking Critical and creative thinking
  • ICT capability Information and Communication Technology (ICT) capability
ScOT terms

User interfaces,  Computers,  Transmission control protocols,  Internet,  Data security

Online

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.

Online

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.

Video

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 ...

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. ...

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? ...

Online

Systems thinking

Find out about Systems thinking. 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.

Online

User interface

Find out about User interface. 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.

Online

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.

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 ...

Online

Cybersafety

Try some of these games, videos, activities and tools to help your students make the right decisions when using the Internet. These links are from the Digital Technologies Hub which is a website that supports Australian primary teachers, secondary teachers, students, school leaders and school communities in engaging with ...

Online

Digital Technologies Hub

The Digital Technologies Hub is a website that supports Australian primary teachers, secondary teachers, students, school leaders and school communities in engaging with the Australian Curriculum: Digital Technologies. The hub provides scaffolded support for teachers and many of the resources will assist those getting started ...