CBIT 0100  INTRODUCTION TO COMPUTING KCA Certificate Past Paper

UNIVERSITY EXAMINATIONS: 2016/2017
EXAMINATION FOR THE DIPLOMA IN BUSINESS INFORMATION
TECHNOLOGY
CIT 0104: INTRODUCTION TO INFORMATION SYSTEM
CBIT 0100 INTRODUCTION TO COMPUTING
DATE: AUGUST, 2017 TIME: 2 HOURS
INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions.

QUESTION ONE [30 MARKS] – COMPULSORY
a) Define the following terms as they apply to Business information technology: –
i. Computer
ii. Operating System
iii. Data
iv. Information (4 Marks)
b) Briefly explain four functions of the operating system (4 Marks)
c) Perform the computation below: –
i. 23110 to binary
ii. E4AB16 to octal (4 Marks)
d) What are the key components to set up a computer network? (2 Marks)
e) Explain the following types of network topology with diagrams
i. Bus topology
ii. Star topology
iii. Mesh topology (3 Marks)
f) Describe the key features of the first four Generation of Computers (4 Marks)
g) Explain why you would advise County Governments to embrace computerization
(5 Marks)
h) With the help of a diagram, describe the main components of a computer architecture.
(4 Marks)
QUESTION TWO [20 MARKS]
a) State and explain the reasons why organizations should implement Electronic Commerce
for Business purposes.
(2 Marks)
b) What is the importance of having a network in an organization (3 Marks)
c) Distinguish between: –
i. System software and application software while giving examples
ii. Volatile storage and non-volatile storage while giving example
(4 Marks)
d) Outline 5 benefits of the internet to the society (5 Marks)
e) Discuss 3 security threats that information can be exposed to and explain why it’s
necessary to secure data and information.
(6 Marks)
QUESTION THREE [20 MARKS]
a) Highlight three ways of preventing a computer from being attacked by a virus.
(3 Marks)
b) Explain three main views for slides in Ms PowerPoint.
(3 Marks)
c) What is the role of the following devices in computer systems
i. Motherboard
ii. Memory
iii. Modem
iv. Network interface Card (NIC)
(4 Marks)
d) State and explain any 5 impacts of computers to the society
(5 Marks)
e) Convert the following number system: –
i. 4310 to base 2
ii. 5688 to base 16
iii. 100111012 to base 10
(3 Marks)
f) State and explain factors that influence performance of a CPU.
(2 Marks)
QUESTION FOUR [20 MARKS]
a) Give keyboard shortcut that will be used to achieve the following in word-processing.
i. Copy a selected text
ii. Paste the selected text
iii. Cut a selected text
(3 Marks)
b) The internet is the largest network used to facilitate E-Business and E-Commerce.
Explain the challenges posed by the use of the internet. (4 Marks)
c) There are ten employees in a local estate agent office. Each employee uses a
networked PC on a Local Area Network (LAN). Give TWO benefits to the office of
using a network rather standalone PCs.
(3 Marks)
d) Define the following features found in spreadsheets.
i. Sheet tab
ii. Formula bar
iii. Name box
(3 Marks)
e) Explain the advantage of Database management software. (3 Marks)
f) Explain how a Management Information system helps support decision making in an
organization. (4 Marks)
QUESTION FIVE [20 MARKS]
a) Discuss any five threats to information systems and suggest how each can be
controlled to enhance the quality and security of information. (10 Marks)
b) Discuss the social, ethical and quality of life issues raised by use of information
systems in an organization. (10 Marks)

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