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Listed under:  Education  >  Curriculum  >  Curriculum organisation  >  Cross disciplinary curriculum  >  STEM
Video

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 ...

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

What are pixels?

Meet Kevin Systrom and Piper Hanson as they explain how digital images work. What are pixels, those tiny dots of light, made from? How are colours created and represented? What does Kevin say about the way mathematical functions are used to create different image filters. What is the difference between image resolution ...

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

Creating computer games

How are computer games made? Find out about the skills and knowledge required to create a computer game in this video. What are some of the roles of the people interviewed? See if you can find out more about what kind of skills and knowledge might be required in each role.