Discussion activity 3
Due: Friday 5pm, week 7
Worth: 3%
Covers lecture 5 and 6
1. You have decided to buy parts and build your own personal computer. At the minimum,
what are the components that you would need for this device to be considered a computer?
2. What are the most important features to consider before purchasing a PC?
3. Explain the notions of WAN, LAN, MAN and PAN.
4. What are the technical advantages of optical fibres over other communications media?
5. Wi-Fi is all around us. Is there any downside to its pervasiveness?
Discussion activity 4
Due: Friday 5pm, Week 9
Worth: 3%
Covers: lecture 7 and 8
1. Spreadsheets have become quite powerful for data management. What can be done with
database management systems that cannot be done with spreadsheet applications? Give 2
examples.
2. What does it mean to cleanse data before it is stored in a data warehouse?
3. What is a data warehouse? How is it different from a transactional database?
4. What is blogging, and what potential does it have for businesses?
5. What is an intranet and what purposes does it serve? What is an extranet, and what purpose
does it serve?
Discussion activity 5
Due: Friday 5pm, Week 10
Worth: 3%
Covers: lecture 9 and 10
1. What is meant by the term ‘global information systems’?
2. The European Union has stricter privacy laws than the United States, and not many US
companies are willing to comply with the EU Directive on Data Protection. How would
you resolve the conflict?
3. Decision Support Systems use models to process data. Explain what a model is. Give two
examples.
4. What is a sensitivity test? Give two example.
5. How could you use a Geographic information System to schedule your classes? Give an
example.
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