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Introducing ICT systems
Information and communication technologies (ICTs) systems now dominate our everyday...
Information and communication technologies (ICTs) systems now dominate our everyday lives. This unit will explain what constitutes such a system and how ICT systems work. You will also look at how ICT systems convey, store and manipulate data, and how they process data. Finally you will learn how these systems are used.
This is what you should have achieved when you have completed your study of this unit:
- Know the meaning of all the terms highlighted in the text.
- Be aware of the main processes in an ICT system (sending, receiving, storing, retrieving, manipulating, conveying).
- Be aware of some of the hardware, software and communication components used in ICT systems.
- Use a system map or a block diagram to identify the components of an ICT system.
- Use the units for conveying data and those for storing data apporpriaterly, including use of the prefixes kilo, mega and giga.
- Current section: Introduction
- Learning outcomes
- 1 Describing an ICT system
- 2 Exploring systems
- 3 Communication systems
- 4 System components
- 5 The processes
- 6 Communication links
- 7 Describing an ICT system: conclusion
- 8 Computers
- 9 A stand-alone computer
- 10 Sending and receiving data
- 11 Manipulating data
- 12 Storing data
- 13 Different types of storage
- 14 Networked computers
- 15 Computers and communication systems working together
- 16 ICT systems in a supermarket
- 16.1 Introduction
- 16.2 Processes at the checkout
- 16.3 Networked computers in the supermarket checkout system
- 16.4 The network
- 16.5 The database server
- 16.6 Pricing and stock control
- 16.7 A loyalty card scheme
- 16.8 Linking data
- 16.9 Identity in an ICT system
- 17 Taking an overview of ICT systems
- 18 Electronic commerce
- 19 Conclusion
- Next steps
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Introducing ICT systems
This unit will introduce you to some ideas about how information and communiction technologies (ICTs) systems work. We will look at how ICT systems convey, store and manipulate data, and how they process data. Finally, using the example of a supermarket, we will analyse how ICT systems are used.
This material is from our archive and is an adapted extract from Networked living: exploring information and communication technologies (T175), which is no longer taught by The Open University. If you want to study formally with us, you may wish to explore other courses we offer in this.
This is an extract from an Open University course which is no longer available to new students. If you found this interesting you could explore more free Information and Communication Technologies courses or view the range of currently available OU Information and Communication Technologies courses.
Copyright & revisions
Originally published: Monday, 8th July 2013
Last updated on: Monday, 8th July 2013
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