BIT1109 COMPUTER ORGANISATION AND APPLICATIONS.

UNIVERSITY EXAMINATIONS: 2018/2019
EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN
INFORMATION TECHNOLOGY/APPLIED COMPUTING/BUSINESS
INFORMATION TECHNOLOGY
BIT 1109: COMPUTER ORGANISATION AND APPLICATIONS
BBIT 102: COMPUTER ORGANISATION AND ARCHITECTURE
FULL TIME/PART TIME/DISTANCE LEARNING
DATE: DECEMBER, 2018 TIME: 2 HOURS
INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions.

QUESTION ONE
a) Identify the various components of following email address:
kansime@yahoo.com. (3 Marks)
b) Explain the following disk management operations:
i. Disk defragmentation (2 Marks)
ii. Disk compression (2 Marks)
iii. Disk partitioning (2 Marks)
c) Outline FIVE features of first generation computers (5 Marks)
d) With relevant examples, distinguish between multiuser and a single user operating system
(4 Marks)
e) Outline FIVE factors to consider when selecting secondary storage devices. (5 Marks)
f) Highlight THREE features of 3
rd generation programming languages. (3 Marks)
g) Distinguish between the internet and world wide web. (4 Marks)
QUESTION TWO
a) Table below is an extract of data in a spreadsheet program. Use it to answer the questions that
follow:


Using cell addresses only, write a formula that could be used to determine:
i. Tax at 16% of gross pay for joseph (2 Marks)
ii. Total for each column (3 Marks)
iii. Lowest salary (2 Marks)
iv. Highest Salary (1 Mark)
v. Distinguish between relative referencing and absolute referencing. (2 Marks)
b) Citing examples, discuss how the use of computers have impacted businesses in Kenya.
(10 Marks)
QUESTION THREE
a) The Internet has revolutionized the way businesses are conducted in this century.
i. Explain FIVE benefits of e-commerce to the business. (10 Marks)
ii. Enumerate FOUR benefits of teleworking to an organization. (4 Marks)
b) Discuss the components of the central processing unit. (6 Marks)
QUESTION FOUR
a) Explain THREE difference between Read Only Memory (ROM) and Random Access Memory
(RAM). (3 Marks)
b) Discuss the THREE different types of user interfaces. (6 Marks)
c) Varying requirements have led to the development of printers with different capabilities. Discuss the
factors that would be considered when purchasing a printer. (10 Marks)
d) Define a peripheral device as used in computing. (1 Mark)
QUESTION FIVE
a) Convert the decimal number 9910 to:
i. Binary (3 Marks)
ii. Octal (2 Marks)
iii. Hexadecimal systems. (2 Marks)
b) Describe FIVE categories of application software indicating how they can be utilized in an
organization. (10 Marks)
c) Define the following terms as used in word processors:
i. Thesaurus (1 Mark)
ii. Indentation (1 Mark)
iii. Word wrap (1 Mark)
1 A B C D E
2 NAME Basic
salary
House
Allowance
Medical
Allowance
Tax
3 Joseph 10000 3000 1000
4 Pius 5000 2000 500
5 Betty 7000 1000 400
6 Joyce 4500 500 300
7 TAX 16%

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