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Created by:

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Last updated:

April 7, 2022

Duration:

Unlimited Duration

FREE

This course includes:

Unlimited Duration

Badge on Completion

Certificate of completion

Unlimited Duration

Description

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.

Course learning outcomes

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 appropriately, including use of the prefixes kilo, mega and giga.

Course Curriculum

  • Introduction 00:10:00
  • Learning outcomes 00:10:00
  • Describing an ICT system 00:10:00
    • Introduction 00:10:00
    • A system map 00:10:00
    • Subsystems 00:10:00
    • Drawing the boundary 00:15:00
    • Models of an ICT system 00:10:00
    • Introduction 00:15:00
    • Looking into the ‘means of conveying a message’ 00:10:00
    • Introduction 00:10:00
    • The transmitter 00:10:00
    • The network 00:10:00
    • The receiver 00:10:00
    • The processes 00:15:00
    • Networks 00:15:00
    • Working with bits 00:15:00
    • Describing an ICT system: conclusion 00:10:00
    • Computers 00:10:00
    • A stand-alone computer 00:15:00
    • Introduction 00:10:00
    • Ports 00:10:00
    • Introduction 00:05:00
    • The processor 00:10:00
    • Memory 00:10:00
    • Computer software 00:10:00
    • Programming languages 00:10:00
    • Operating systems 00:10:00
    • Applications 00:20:00
    • Introduction 00:10:00
    • Bytes of data 00:20:00
    • Introduction 00:10:00
    • Magnetic storage 00:10:00
    • Optical storage 00:15:00
    • Flash memory 00:10:00
    • Introduction 00:05:00
    • Modelling networked computers 00:10:00
    • First computer (your computer) 00:10:00
    • Network 00:10:00
    • Second computer (the FirstClass server) 00:10:00
    • Personal Digital Assistants 00:20:00
    • Computers and communication systems working together 00:10:00
    • Introduction 00:10:00
    • Processes at the checkout 00:15:00
    • Receiving data 00:10:00
    • Storing and retrieving data 00:10:00
    • Manipulating data 00:10:00
    • Sending data 00:15:00
    • Networked computers in the supermarket checkout system 00:10:00
    • The network 00:15:00
    • The database server 00:10:00
    • Pricing and stock control 00:10:00
    • A loyalty card scheme 00:10:00
    • Linking data 00:10:00
    • Identity in an ICT system 00:20:00
    • Introduction 00:10:00
    • The checkout terminal 00:10:00
    • The network 00:10:00
    • The database server 00:20:00
    • Introduction 00:10:00
    • Using e-commerce 00:30:00
    • Conclusion 00:10:00

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