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Introducing ICT systems

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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.

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.

By: The Open University

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Introducing ICT systems


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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 subject area [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] .

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