CS Unplugged: Text Compression
Use the You Can Say That Again! offline activity to explore how a computer stores information as efficiently as possible. Support your teaching and learning with video clips and other related resources.
Additional details
| Year band(s) | 7-8, 9-10 |
|---|---|
| Format | Web page |
| Core and overarching concepts | Digital systems, Data representation |
| Australian Curriculum Digital Technologies code(s) |
AC9TDI8K02
Investigate how data is transmitted and secured in wired and wireless networks including the internet
AC9TDI8K03
Investigate how digital systems represent text, image and audio data using integers
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, Text compression, Recollection, File size, Data retrieval, Data storage |
| Organisation | University of Canterbury, New Zealand |
| Copyright | Creative Commons BY-NC-SA 4.0 |
Related resources
-
Home/School communications
In this lesson sequence, students use big data sets and school surveys, to design (and as an extension activity, make) a new digital communication solution for the school.
-
Home automation: General purpose programming
Investigate home automation systems, including those powered by artificial intelligence (AI) with speech recognition capability.
-
VR creation with CoSpaces: The Basics
Create virtual reality with CoSpaces a new tool to explore Virtual reality (VR).
-
Network Protocols
Use this unplugged activity to explore how computers talk to each other over the internet via messages.
-
Pixels and binary digits
Students are given a bitmap image made up of coloured pixels.
-
Representing text, images and sound
Learn about how text, images and sound are represented in binary.
-
CS Unplugged: Field guide: Data Representation
An online resource for teaching Computer Science to students, this chapter focuses on Data Representation.
-
CS Unplugged: Field guide: Formal Languages
An online resource for teaching Computer Science to students, this chapter focusses on Formal Languages.