All Categories of Computer Science


Question: 1. Explain, with the help of examples, what is meant by the terms data, information and knowledge, as used within the study of information systems.
Describe the characteristics of good quality information.
2. Information systems are critical to the running of any organisation in modern society.
With the help of examples,
i) define an information system
ii) describe the different categories of computer-based information systems
iii) explain how computer-based information systems can support managers at each level of an organisation
iv) explain some possible reasons why an information system may continually fail to provide the correct level of information

Answer: Information is quite simply data that is processed for a particular purpose....


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  • Subject: Computer Science
  • Course: Information Systems
  • Level: Degree
  • Year: 1st
  • Mark: 61%
  • Words: 1471
  • Date submitted: September 18, 2009
  • Date written: October, 2001
  • References: No
  • Document type: Essay*
  • Essay ID: 2142

Question: “Heuristic evaluation is an essential element of systems development.” Assess the validity of this claim.

Answer: Jakob Nielsen (1990) describes heuristic evaluations as “a systematic inspection of a...


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  • Subject: Computer Science
  • Course: Computer Science (General)
  • Level: Degree
  • Year: 1st
  • Mark: 61%
  • Words: 852
  • Date submitted: September 17, 2009
  • Date written: March, 2004
  • References: Yes
  • Document type: Essay*
  • Essay ID: 2133

Question: Search the Internet and/or AIU Library to find examples of devices that use radio frequency technology and those that use infrared (IR which includes the IrDA specifications IrPHY, IrLAP, IrLMP, IrCOMM, Tiny TP, IrOBEX, IrLAN and IrFM "Point & Pay"). Recommend at least two IR devices and two 802.11 devices to be used in the design of the WLAN of your local hospital. Compare costs and capabilities.

Answer: As part of this weeks assignment we are to choose two IR...


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  • Subject: Computer Science
  • Course: Web Development
  • Level: Degree
  • Year: 1st
  • Mark: 60%
  • Words: 559
  • Date submitted: October 05, 2009
  • Date written: January, 2007
  • References: Yes
  • Document type: Essay*
  • Essay ID: 2193

Question: Online purchasing continues to grow in size and has a significant impact on the commercial environment. This project explores the factors influencing internet purchases of goods.

Answer: Purchasing online can have many advantages over the old-fashioned way of doing...


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  • Subject: Computer Science
  • Course: Web Development
  • Level: Degree
  • Year: 1st
  • Mark: 60%
  • Words: 2106
  • Date submitted: October 05, 2009
  • Date written: April, 2003
  • References: Yes
  • Document type: Essay*
  • Essay ID: 2179

Question: 1. What is the difference between a piconet and a scatternet?
2. Explain why having several independent piconets in a limited area may slow down data transmission rates between bluetooth devices.
3. Explain the difference between ad-hoc mode and infrastructure mode in the context of a WLAN.
4. List the different 802.11b MAC frame formats and describe the purpose of each different format.
5. Explain how both the CSMA/CA and CSMA/CD access methods work. Which of these methods is used with IEEE 802.11b networks? Why?

Answer: A piconet refers to one or more bluetooth devices that connect as...


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  • Subject: Computer Science
  • Course: Computer Science (General)
  • Level: Degree
  • Year: 1st
  • Mark: 60%
  • Words: 1886
  • Date submitted: October 05, 2009
  • Date written: Not available
  • References: Yes
  • Document type: Essay*
  • Essay ID: 2174

Question: Assess the relevance of metaphors to Human - Computer interaction from the perspective of user interface design.

Answer: System metaphors appear to be attracting more and more attention and you...


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  • Subject: Computer Science
  • Course: Computer Science (General)
  • Level: Degree
  • Year: 2nd/3rd
  • Mark: 60%
  • Words: 3746
  • Date submitted: October 05, 2009
  • Date written: Not available
  • References: Yes
  • Document type: Essay*
  • Essay ID: 2170

Question: IT Infrastructure Investment Plan. Provide specifications for different high-end computer systems.

Answer: The purpose of this document is to submit to the company a...


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  • Subject: Computer Science
  • Course: Computer Science (General)
  • Level: Degree
  • Year: 1st
  • Mark: 60%
  • Words: 5570
  • Date submitted: September 27, 2009
  • Date written: November, 2004
  • References: Yes
  • Document type: Essay*
  • Essay ID: 2147

Question: COMPARE AND CONTRAST THE TCP/IP AND OSI MODELS.

Answer: What Does TCP/IP Stand for? Ø TCP stands for Transmission Control Protocol...


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  • Subject: Computer Science
  • Course: Web Development
  • Level: Degree
  • Year: 1st
  • Mark: 60%
  • Words: 809
  • Date submitted: September 17, 2009
  • Date written: Not available
  • References: Yes
  • Document type: Essay*
  • Essay ID: 2135

Question: Smart card applications.

Answer: As per the requirement I have chosen Smart card applications as my...


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  • Subject: Computer Science
  • Course: Computer Science (General)
  • Level: Degree
  • Year: 1st
  • Mark: 60%
  • Words: 2761
  • Date submitted: September 16, 2009
  • Date written: September, 2004
  • References: Yes
  • Document type: Essay*
  • Essay ID: 2121

Question: To date, the internet has benefited from an ample supply of IP (Internet Protocol) addresses. The internet’s standards TCP/IP protocol (IPv4) offers approximately 4.3 billion addresses, but demand is substantial and growing. At current allocation rates, supply appears sufficient to last only until approximately 2011 (Edelman, 2008:3).

a) Analyse some of the reasons why this situation has arisen
b) Compare and contrast some of the possible solutions to the problem of IP address scarcity.

School of Engineering and Applied Science
Module CS1150: Communication Skills
Mark attained 2:1

Answer: Designed in the 70s the IPv4 protocol was for its time a...


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  • Subject: Computer Science
  • Course: Module CS1150 Communication Skills
  • Level: Degree
  • Year: 2nd/3rd
  • Mark: Not available
  • Words: 1000
  • Date submitted: December 26, 2014
  • Date written: November, 2014
  • References: No
  • Document type: Essay*
  • Essay ID: 6243

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