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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.