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1. ICT systems and its components

2. What are the components of an ICT
System? Pages 97 - 102
List the components that make up an ICT system
 E.g: People
 Hardware…

3. Components of an ICT System
 Software
 Hardware
 Information
 Procedures
 People
 Data

4. People
 Why are people needed in an ICT System (think to Miss
Pascoe’s work)
 No ICT system can work without people being involved in
various stages.
 The first stage will be for analysis, design, implementation
and testing of a system, which will be varied out by
systems analysis and programmers.
 These systems are built to suit a particular client, end user
or audience and the computer specialists will work to meet
requirements of the client.
 Systems are much more likely to succeed of the clients and
end users are involved at every stage.

5. People…
 Large organizations are often divided up into department that carry out the four main functions
of a business they make sue of IT in most aspects of the business.
 Sales, purchasing. Finance an operations.
 Departments will communicate and exchange information with each other and with external
bodies such as customers and suppliers. This will be done with various ICT facilities such as:
 Email, finance, payroll, budgeting/forecasting using spreadsheet or special purpose software,
stock control using relational database management software, marketing of products and
services including websites and the media.
 Networks and intranets can help colleagues to communicate and share data to produce an
efficient organization even if some of the company are in different locations around the world.

6. People
 Anaysis
 Design
 Implementation
 Testing
 Carried out by system analysts and programmers.
 Build to suit particular client needs.
 ICT Systems more likely to succeed if clients are involved at every stage.

7. Large Organisations
 Divided into departments, which are…… (main 4)
 P
 O
 F
 S
 Departments communicate and exchange information with each other and
external bodies.
 Email, Stock Control, Finance/Payroll, Marketing – Networks and Intranet help.

8. Data
Define Data

9. Data
 The definition of data is raw facts and figures or a set of values. The
following are some examples of data that might be input.
 Raw facts and figures or set of values. For example:
 25, 30, 45, 60
 Jones, Smith, Parker
 A, B, C, D, E
 Data can be inputted by different devices – Name some please….

10. Data
Data can be inputted by some of the following:
 Keyboard
 Barcode reader
 Scanner
 Digital camera
 Microphone
 Can you think of any more?

11. Define what a procedure is..

12. Procedures
 Procedures – important to ensure procedures are in place. Most organizations have a code of
practice in place which governs the way in which their ICT system can be used by their
employees. All laws and legislation that have been introduced by government must also be
taken into account when using ICT systems.
 These include Data protection Act, Computer misuse act, copyright, designs and patents act and
the freedom of information act.
 Users must ensure that they follow security procedures such as the user of usernames and
passwords and anti-virus software.
 Any removable media should be checked to ensure that the integrity of the ICT systems are not
compromised.
 Breaches of ICT code of conducts should be dealt with inline with various laws and company
procedures.

13. Software and hardware
 Software –The choice of software will depend on the system being implemented
to ensure that the desired output can be produced.
 What software packages are there?
 Hardware – Depend on the type of processing and output intended, storage
space and processing power – key aspects. Storage space and processing power
are two of the key aspects that will be taken into account when making choices
about the hardware that is chosen. Specialist output devices such as color laser
printers may also need to be taken into account when looking at the task that
the ICT system is performing.
 What are the main components of hardware required?

14. Identify and define the Purpose of each..
 Identify and know the purpose and characteristics of the main hardware
components of an ICT system.
 Input devices..
 Processors e.g. CPU
 Output devices..
 Ports and cables..
 Storage devices..

15. Main components and hardware..
 Input devices.. Keyboard, mouse, scanner, barcode readers,…
 Processors e.g. CPU
 Output devices.. Printer, speaker monitor/screen
 Ports and cables.. Parallel, serial, universal serial bus (USB)
 Storage devices.. Hard drive, CD, DVD, memory sticks..

16. Information
 The final output is the information produced. Information is data that has been processed into something meaningful.
 Data that has been processed into something that is meaningful.
117, 36, 118, 48,
119, 85, 120, 49
Sort Candidate number
and mark, convert mark to
grade.
A
B
C
Data input
Processing Output