Introducing ICT systems
Introducing ICT systems

This free course is available to start right now. Review the full course description and key learning outcomes and create an account and enrol if you want a free statement of participation.

Free course

Introducing ICT systems

17 Taking an overview of ICT systems

17.1 Introduction

I'm going to pause here to try to put together some of the ideas we have encountered so far. I deliberately chose the example of a supermarket to illustrate some of the key processes involved in an ICT system. Figure 15 is a modified version of the block diagram for computers in a network (Figure 11). I have changed the labels in order to represent the networked computers in a supermarket. I have also added the second user, as in Figure 13. I'll now take each block of the diagram in Figure 15 in turn and examine what is involved. This is a 'walkthrough' of the networked computer system and it will help us to highlight the important processes that take place in each block.

Figure 15
Figure 15 Block diagram of a networked computer in a supermarket
T175_3

Take your learning further

Making the decision to study can be a big step, which is why you'll want a trusted University. The Open University has 50 years’ experience delivering flexible learning and 170,000 students are studying with us right now. Take a look at all Open University courses.

If you are new to university level study, find out more about the types of qualifications we offer, including our entry level Access courses and Certificates.

Not ready for University study then browse over 900 free courses on OpenLearn and sign up to our newsletter to hear about new free courses as they are released.

Every year, thousands of students decide to study with The Open University. With over 120 qualifications, we’ve got the right course for you.

Request an Open University prospectus