TUESDAY: 24 November 2020. Time Allowed: 3 hours.
Answer any FIVE questions. ALL questions carry equal marks.
QUESTION ONE
1. Contrast between “proprietary operating system software” and “open source operating system software” using the following criteria:
Security. (2 marks)
Application platform. (2 marks)
2. Highlight four major roles of data communication software. (4 marks)
3. State four functions of a mouse. (4 marks)
4. List the four factors that an instant messaging system must address in order to fulfil its business objective. (4 marks)
5. Highlight four uses of Information Communication Technology (ICT) in the health sector. (4 marks)
(Total: 20 marks)
QUESTION TWO
1. State two commonly adopted e-commerce business model in the business environment today. (2 marks)
2. Explain three major file types that are supported by a file management system. (6 marks)
3. State four objectives of using wireless media in a network environment. (4 marks)
4. Highlight four properties found in a spreadsheet software for formatting chart objects. (4 marks)
5. State four computer hardware performance metrics. (4 marks)
(Total: 20 marks)
QUESTION THREE
1. The use of internet and internet related services has created concern over data privacy issues:
Required:
Explain the term “data privacy”. (2 marks)
Suggest two computer technologies that threaten the privacy stated in (a) (i) above. (2 marks)
Recommend two measures that could be used to protect data privacy (2 marks)
2. Citing two examples, explain the term “groupware”. (2 marks)
3. Examine four major challenges faced by business from the use of management information systems. (8 marks)
4. Describe four tools needed to guarantee health safety of computer users involved in intensive typing. (4 marks)
(Total: 20 marks)
QUESTION FOUR
1. Explain the following information communication technology (ICT) terms:
Clipboard. (2 marks)
Gigabyte. (2 marks)
Netizen. (2 marks)
2. Distinguish between “multitasking” and “multiprogramming”. (4 marks)
3. Outline six common causes of data loss in a computer environment. (6 marks)
4. Give two examples of transaction processing systems TPS) and two examples of Management Information Systems (MIS). (4 marks)
(Total: 20 marks)
QUESTION FIVE
1. Explain using an example, the term “commercial off-the-shelf (COTS)” software. (2 marks)
2. Identify six technologies which make fifth generation of computers different from the fourth generation computers. (6 marks)
3. Highlight three factors that you would consider when selecting an input device, (3 marks)
4. Contrast between a website and a web portal using the following criteria; features, interaction and management. (6 marks)
5. Describe three desktop computer operating systems from different software vendors. (3 marks)
(Total: 20 marks)
QUESTION SIX
1. List five examples of computer file extensions citing the software which created the file. (5 marks)
2. Distinguish between “cold booting” and “warm booting”. (4 marks)
3. Explain the following social media terms:
Hootsuite. (I mark)
Snapchat. (1 mark)
4. State four reasons why a commercial organisation should always use legally obtained and licensed software. (4 marks)
5. The reason behind explosion in email, instant messages, wireless computing, wireless interne and cell-phone is that businesses and managers derive extraordinary business value from participating in communication network.
Required:
Evaluate five business value impacts of the telecommunication revolution. (5 marks)
(Total: 20 marks)
QUESTION SEVEN
1. Entering data through keyboards has been a major source of errors in computer inputs. Therefore, systems should be designed to use technologies which reduce or eliminate the possibility of input errors
Required:
Describe three keyless data input devices. (6 marks)
Explain three types of user interface that could be used to interact with an information system. (6 marks)
Describe four factors that an organisation should consider when selecting a file organisation method. (8 marks)
(Total: 20 marks)
