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CS Unplugged: Field guide: Data Representation

An online resource for teaching Computer Science to students, this chapter focuses on Data Representation. This chapter is about some of the different methods that computers use to code different kinds of information in patterns of bits, and how this affects the cost and quality of what we do on the computer.

Additional details

Year band(s) 7-8, 9-10
Format Web page
Core and overarching concepts Data representation
Australian Curriculum Digital Technologies code(s)
AC9TDI8K03   

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

AC9TDI8K04   

Explain how and why digital systems represent integers in binary

AC9TDI8P02   

Analyse and visualise data using a range of software, including spreadsheets and databases, to draw conclusions and make predictions by identifying trends

AC9TDI10K02   

Represent documents online as content (text), structure (markup) and presentation (styling) and explain why such representations are important

AC9TDI10K03   

Investigate simple data compression techniques

AC9TDI10P01   

Develop techniques to acquire, store and validate data from a range of sources using software, including spreadsheets and databases
Keywords Data Representation, Data visualisation, Data collection, Binary, Hexadecimal, Byte, Unicode, Colours, RGB Colour Mixer, CMY Colour Mixer
Organisation

University of Canterbury, New Zealand
Copyright

University of Canterbury, New Zealand. Creative Commons BY-NC-SA 4.0.

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