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Bmit 116: Introduction To Information Technology April 2010 Question Paper

Bmit 116: Introduction To Information Technology April 2010

Course:Bachelor Of Business Management And Information Technology

Institution: Kabarak University question papers

Exam Year:2010

COURSE CODE: BMIT 116
COURSE TITLE: INTRODUCTION TO INFORMATION
TECHNOLOGY

STREAM: Y1S1

INSTRUCTIONS:
Section A is COMPULSORY and has (40 marks). Attempt any TWO questions from
Section B. Each question has (15 marks).

SECTION A

QUESTION 1

a) What is a firmware? (1 mark)

b) What is a web browser? Give two examples (2 marks)

c) Briefly explain each of the following types of primary storage and state what each
is used for.

i) ROM (2 marks)
ii) RAM (2 marks)
iii) Cache memory (2 marks)
iv) Virtual memory (2 marks)

d) What is SPAM? (1 mark)

e) What is VOIP and what is its main advantage? (1 mark)

f) Differentiate between data verification and data validation (2 marks)

g) Each window on the data entry screen has a scroll bar. What is a scroll bar used
for? (1 mark)
h) What is WIMP? (1 mark)

i) Give the difference between multiprogramming and multiprocessing
(1 mark)

j) Both the floppy disk and the CD-RW may soon disappear. Briefly explain why
this is likely to happen. (1 mark)

k) What is an internet service provider? (ISP) (1 mark)
l) Give one physical method of preventing unauthorized access to data (2 mark)
m) Briefly explain what a computer virus is.
(2 marks)
n) Give four precautions that should be taken to avoid corruption of data by viruses.
(4 marks)
o) What should be done to avoid losing data when a machine malfunctions
(1 mark)
p) Briefly explain what backup means. Give two external storage devices that can
be used for backup. (3 marks)

q) What is a search engine? Give one example. (2 mark)
r) State and explain the characteristics of computers. (4 Marks)

s) With examples, explain the meaning of the following terms:
i) Simplex
ii) Duplex
iii) Half duplex (3 marks)

SECTION B

QUESTION 2

a) Give four differences between a LAN and WAN. (4 marks)

b) Describe how computers can be classified based on their operating system.
(6 Marks)
c) State and explain any five applications of computers. (5 Marks)

QUESTION 3

a) Data may be corrupted by hackers, viruses or machine malfunction.

i) List two software methods of preventing unauthorized access to data.
(2 marks)

b) Data must be kept confidential for reasons of commercial confidentiality and
because of people’s natural right to privacy
i) In this context explain what is meant by safe disposal of waste. (2 marks)
ii) Explain what encryption is and how this technique can help keep data private.
(3 marks)
iii) Explain four functions of the basic components of a digital computer.
(2 marks)
c) Give and explain four features of a good user-friendly software package.
(4 marks)
d) Give four functions of an operating system. (2 marks)

QUESTION 4

a) Data capture for customer purchases in supermarkets often uses barcodes and
scanners.
i) Describe how such a system is used to produce the customer bill, including
the way item price data is obtained. (2 marks)

ii) Describe how item prices are changed. (2 mark)

b) The computer system is essential for the supermarket to serve customers.

i) Outline a plan for ensuring that the supermarket can continue to serve and bill
customers if the electrical power supply to the computer system fails.
(3 marks)

ii) Outline TWO other problems which arise due to the interruption to electrical
power supply.
(2 marks)

c) You have been asked to produce a computer payroll package for the small
business, which you work for. How would you go about selecting the most
suitable packages for your organization?
(4 marks)

d) What’s the difference between user development (bespoke) and standard package
(off-the-shelf)? (2 mark)

Bmit 116: Introduction To Information Technology April 2010 Question Paper

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