CIT104  INTRODUCTION TO INFORMATION SYSTEMS KCA Certificate Past Paper

UNIVERSITY EXAMINATIONS: 2018/2019
EXAMINATION FOR THE CERTIFICATE IN INFORMATION
TECHNOLOGY
CIT104 INTRODUCTION TO INFORMATION SYSTEMS
FULLTIME/PARTIME
DATE: NOVEMBER, 2018 TIME: 2 HOURS
INSTRUCTIONS: Answer Question ONE AND any other TWO questions.

QUESTION ONE
a) Describe how a computer is used in
i) Communication
ii) Industry
iii) Reservation system
iv) Banking (4Marks)
b)
i) Convert 617328 to base 10.
ii) Convert the hexadecimal AD3B to decimal
iii) Convert 47328 to base 2.
iv) Convert 47328 to base16
(4Marks)
c) Discuss any four impacts of computers in the society. (4Marks)
d) Give four advantages of using word processor over type writer. (4Marks)
e) What is a computer virus? And give three examples of viruses. (4Marks)
f) Explain two precautions that can be taken to help recover data loss through accidental
erasure. (4Marks)
g) Explain three threats to data and information. (6Marks)
QUESTION TWO
a) Differentiate between Information system and information technology. (2Marks)
b) Explain the components of an information system. (4Marks)
c) Discuss the major roles of the information systems in business. (6Marks)
d) Discuss any four types of information systems in supporting and enabling business core
processes. (8Marks)
QUESTION THREE
a) Define what a computer system is. (2Marks)
b) Describe the distinguishing characteristics of the following memory types: ROM and
RAM. (4Marks)
c) Define the term operating system and outline four functions of operating system.
(8Marks)
d) Explain any four classifications of input devices citing examples. (4Marks)
e) Explain four factors to consider while selecting a computer hardware and software.
(2Marks)
QUESTION FOUR
a) Explain any three advantages and disadvantages of automated processing. (6Marks)
b) Discuss any three problems with the use of internet within organizations. (6Marks)
c) Explain the two functions of networks. (2Marks)
d) Outline three types of network topologies, giving each its advantage and disadvantages.
(6Marks)
QUESTION FIVE
a) Highlight three application areas of spreadsheet. (3Marks)
b) Explain three functions of database management software. (3Marks)
c) Distinguish between internet and World Wide Web. (3Marks)
d) Describe the following terms as they are used in the internet.
i) Surf
ii) Downloading
iii) Inbox (3Marks)
e) Explain four computer crimes and control measures of preventing. (8Marks)

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