CIT0104  INTRODUCTION TO INFORMATION SYSTEM.

UNIVERSITY EXAMINATIONS: 2018/2019
EXAMINATION FOR THE CERTIFICATE IN BUSINESS
INFORMATION TECHNOLOGY/ CERTIFICATE IN INFORMATION
TECHNOLOGY
CIT0104 INTRODUCTION TO INFORMATION SYSTEM
CBIT 0100: INTRODUCTION TO COMPUTING
DATE: APRIL, 2019 TIME: 2 HOURS
INSTRUCTIONS: Answer QUESTION ONE and any other TWO Questions.

QUESTION ONE
a) With examples, differentiate system software from application software (4 Marks)
b) What are the functions of the following protocols as used in E-mail programs?
i. FTP
ii. HTTP
iii. SMTP (3Marks)
c) Define the following terms as they apply to Business information technology: –
a) Computer
b) Operating System
c) Data
d) Information (4Marks)
d) Outline the steps needed to perform the following in MS-WORD
i. Selecting a line of text using a mouse
ii. Saving a document
iii. Bolding and underlining an already existing text (3Marks)
e) State a key combination that may carry each of the following in a windows operating
system based: –
i. Lock a computer
ii. Copying an active window
iii. Quit and application
iv. Closing an active window. (5 Marks)
f) What are the advantages of eLearning to students? (3Marks)
g) Distinguish between the following database relationships:-
i. One-to- many
ii. One-to-many
iii. Many-to- many
(3Marks)
h) The government has been advised to install a virtual reality system for its citizens for
distaster management preparation: –
i. Outline two input devices that the system should have, giving examples in each case.
(3Marks)
ii. Outline two software development tools that could be used to develop the system.
(2Marks)
QUESTION TWO
a) Using a diagram to illustrate, and explain the basic components of a central
processing Unit (6 Marks)
b) Compare and contrast the hard disk and the CD ROM as media for mass storage
(6 Marks)
c) How has the internet revolutionized the telecommunication sector? (5 Marks)
d) How do you ensure that the work you have saved in Ms 2003 opens in a computer
running on MS 2010.
(3Marks)
QUESTION THREE
a) A processor of any computer is characterized by the following factors that influence the
performance of the processor: explain each factor and how it influence the computer processor.
i) Data bus width
ii) Processor speed/clock rate
iii) Internal CPU architecture
iv) I/O bus speed (8 Marks)
b) Do the following conversions:
(i) Convert decimal 1453 to binary
ii) Convert 1110111000010 to hexadecimal
iii) Convert 2C16 to decimal
iv) Convert 0.78125 to binary
(v) Convert 10910 to octal (8 Marks)
c) Explain any four benefits of using computers in the business (4 Marks)
QUESTION FOUR
a) Computer software is categorized into three. Identify three categories and give examples.
(6 Marks)
b) Describe the key features of the first four Generation of Computers (4 Marks)
c) Outline 5 benefits of the internet to the society (5Marks)
d) Distinguish between www and the internet. (1 Mark)
e) List three activities performed by the operating system (4 Marks)
QUESTION FIVE
a) Explain five positive impacts of computers in the society. (6Marks)
b) Give the keyboard shortcut that will be used to achieve the following in a word processor.
i. Copy a selected text
ii. Paste the copied text
iii. Cut a selected text
iv. Select all (4Marks)
c) How can an organization prevent the security threats that it can encounter as a result of
the introduction of computer-based systems? (5Marks)
d) Discuss five functions of computer operating systems. (5 Marks)

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