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Fundamentals Of Information Technology Question Paper

Fundamentals Of Information Technology

Course:Diploma In Business Information Technology

Institution: Strathmore University question papers

Exam Year:2010

1
STRATHMORE UNIVERSITY
FACULTY OF INFORMATION TECHNOLOGY
Diploma in Business Information Technology
END OF SEMESTER EXAMINATION
DBT 1101: FUNDAMENTALS OF INFORMATION TECHNOLOGY
Venue: Reading Room
Date: 19th April 2010 Time: 2 hours
INSTRUCTIONS:
ATTEMPT QUESTION 1 AND ANY OTHER TWO QUESTIONS.
ALL QUESTIONS CARRY 20 MARKS.

QUESTION 1
a) Define a computer algorithm (1 marks)
b) Explain the meaning of an input peripheral, giving two example devices that are
in this category (3 marks)
c) Sketch a labeled block diagram to show the components of a communication
system. Describe the function of each component (6 marks)
d) Explain the advantage that binary number system has over the other systems in
computing (2 marks)
e) Define the following types of storage; Primary storage, Secondary storage, giving
an example storage device for each of the types of storage (4 marks)
f) Distinguish between programming software and application software
(4 marks)
TOTAL = 20 MARKS
QUESTION 2
a) Sketch a labeled logical diagram of the functional parts of a computer system.
Briefly describe the function of each part.
(8 marks)
b) The following set of mathematical operation is implemented by a user on the
computer; 4 + 6 = 10. Briefly describe how the execution is handled between any input
devices, memory, Arithmetic and Logic Unit, the Control Unit and any output devices.
(4 marks)
2
c) Explain the meaning of each of the following characteristics of primary computer
storage;
I) accessibility
II) capacity
III) performance
IV) volatility (8 marks)
TOTAL = 20 MARKS
QUESTION 3
a) Perform the following number systems operations;
0 1 1 0 1 +
1 0 1 1 1
------------- (1 marks)
b)
1 1 0 1 1 1 0
- 1 0 1 1 1
(1 marks)
c)
i) 1 0 1 1 × 1 0 1 0
ii) 1 0 1.1 0 1 × 1 1 0.0 1
(4 marks)
d)
1 0 1 ) 1 1 0 1 1
(2 marks)
i) Convert the following binary value to decimal
1 0 0 1 0 1 0 1 1 0 1
(2 marks)
ii) Convert the following hexadecimal values to binary
- 3A
- E7
(4 marks)
iii) Convert the following binary values to hexadecimal
- 1010010
- 11011101
(4 marks)
iv) Convert the following hexadecimal value to decimal
C0E7
(2 marks)
3
TOTAL = 20 MARKS
QUESTION 4
a) Define a computer software (2 marks)
b) What is e-commerce? (2 marks)
c) Explain the need for project management in software development
(2 marks)
d) Briefly describe the THREE main categories of software
(6 marks)
e) Explain the role of the operating system (6 marks)
f) Explain one advantage and one disadvantage that a high level programming
language has over machine language
(2 marks)
TOTAL = 20 MARKS
QUESTION 5
a) Define a computer network
(2 marks)
b) Explain the benefits of computer networking
(4 marks)
c) Data compression enables a more economical use of networking resources.
Describe the principle used in data compression
(5 marks)
d) Assuming you own a business that sells clothes, how would you use the internet
to grow in the market?
(9 marks)
TOTAL = 20 MARKS

Fundamentals Of Information Technology Question Paper

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