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Information and communication technologies (ICTs) systems now dominate our everyday lives. This free course, Introducing ICT systems, 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.
After studying this course, you should be able to:
- understand the meaning of all the terms highlighted in the text
- demonstrate an awareness of the main processes in an ICT system (sending, receiving, storing, retrieving, manipulating, conveying)
- demonstrate an awareness 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
- Keep on learning
Study this free course
Enrol to access the full course, get recognition for the skills you learn, track your progress and on completion gain a statement of participation to demonstrate your learning to others. Make your learning visible!
Introducing ICT systems
This course 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 OpenLearn course provides a sample of level 1 study in
This free course includes adapted extracts 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: Thursday, 17th March 2016
Last updated on: Thursday, 17th March 2016
- Creative-Commons: The Open University is proud to release this free course under a Creative Commons licence. However, any third-party materials featured within it are used with permission and are not ours to give away. These materials are not subject to the Creative Commons licence. See terms and conditions. Full details can be found in the Acknowledgements and our FAQs section.
- This site has Copy Reuse Tracking enabled - see our FAQs for more information.
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