| 4.1.5 Capabilities and Limitations of ICT |
| Last update 16 August 2009 - FatMax |
This topic introduces why ICT is used over manual systems and some of the factors which affect the efficiency of systems.
| Key Points/Learning Outcomes |
By the end of this topic you should be able to:
- give an application and
explain each of the following: repetitive processing, speed
of processing, data storage capacity, speed of searching,
accuracy and speed of data communications, the ability to
produce different output formats.
You should also be able to show an understanding of how the following affect the
efficiency of data processing
systems:
- hardware, software, suitability of the operating system,
communication and input (GIGO);
the nature of computer software, change in circumstances
during development, speed of implementation,
compatibility, insufficient testing, poor communications with
user, abilities of the user, poor post-implementation
procedures, maintenance procedures, cost, hardware,
support.
The above is all paraphrased from the specification!!! For the full content refer to page 13 of the 2009/2010 spec. |
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Below you can find a few resources to help you with your planning, revision or idle curiosity. Not a lot here at the minute!!! Note: none of these are endorsed by WJEC
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| For the old AQA spec. but this is a good introduction to WJEC cobntent - by me so it should be!!! |
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| Worksheet to go with the above ppt. Not an awful lot to do on it but it might be a good starting point for discussion? |
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| Simple worksheet (by you know who!!!) to test your knowledge and understanding of garbage In Garbage Out |
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| A *very* short ppt from Ogmore School which summarises the key points for this topic. There's a pdf file to go with this. |
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| Summary of why software fails. Useful for considering some of the factors that affect the efficiency of data processing systems. |
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| Time to put on the sunglasses!!!! For the old AQA spec from ict-teacher.com this contains a basic intro into why ICT is used. |
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| Only vaguely relevant!!! Use this to consider some of the things that *could* go wrong (therefore affecting the efficiency of new systems) |
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| Revision notes from Marling VI Form. Not sure where these are origianlly from but they're specifically for the WJEC spec. |
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| Books/Reading |
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| See the books page or follow the links for more details about the titles listed below |
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- Mott & Leeming - pages ?? - ??
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| Sample Question(s) |
Information Technology is widely used in business to process large amounts of data.
a. Discuss two advantages of ICT over manual methods of processing data, using
suitable examples in each case. [4]
b. Describe three factors affecting the efficiency of data processing systems.
[3]
More sample questions and answers are available here |
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| Books for 4.1.5 |
ICT Through Diagrams
Alan Gardner
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Essential ICT for WJEC
Stephen Doyle |
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WJEC ICT
Mott & Leeming |
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