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Seit 101: Information Technology Fundamentals Question Paper

Seit 101: Information Technology Fundamentals

Course:Information And Communication Technology

Institution: Kenyatta University question papers

Exam Year:2010

KENYATTA UNIVERSITY
UNIVERSITY EXAMINATIONS 2010/2011
FIRST SEMESTER EXAMINATION FOR THE DEGREE OF BACHELOR OF
INFORMATION TECHNOLOGY
SEIT 101: INFORMATION TECHNOLOGY FUNDAMENTALS

DATE: Monday 29th November, 2010
TIME: 2.00 p.m. – 4.00 p.m.

INSTRUCTIONS:
? Answer question 1 and 2 others questions.

Q.1) a)
Describe the five generations in the history of computer development.
State the technological development associated with each of the

generations.

(10 marks)

b)
Computers can be classified according to Technology. Describe three

types of computers classified according to technology
(6 marks)

c)
Perform the following operations using the Number System
indicated.
i)
65 +41 (octal)

(2 marks)

ii)
FA345 – 5631 (Lexa decimal)

(2 marks)

iii)
11110011 + 11111 (Binary)

(2 marks)

iv)
Convert 65 to binary

(2 marks)
8
v)
111011 ? 11 (binary)

(2 marks)

Page 1 of 3

d)
i)
What is an algorithm

(1 mark)

ii)
Enumerate three conditions that every algorithm
must satisfy

(3 marks)

Q.2) i)
Describe four general types of flow charts

(4 marks)

ii)
Draw a flow chart that show the sequence followed to out put
the largest value of three inputs A, B, and C.

(6 marks)

iii)
Draw a flow chart for computing the factorial N! where
N! = 1x2x3x….. XN. Include a loop

(10 marks)

Q.3) a)
i)
What is a computer program/

(1 mark)

ii)
Describe two low-level languages

(2 marks)

iii)
State one advantage and one disadvantage of each of
the languages you have described in (ii) above
(4 marks)

iv)
Explain three features of a High-Level language (3GL) (3 marks)

v)
Give four examples of 3GLs

(4 marks)

vi)
What are the three basic components of a Paschal
Program?

(3 marks)

Q.4) a)
Perform the following computation using the number

System indicated:

i)
10 10 + 1111 in binary

(1 mark)

ii)
101 x 11 in binary

( 1 mark)

iii)
111011 ? 11 I binary

(1 mark)

iv)
456 + 123 in octal

(1 mark)
Page 2 of 3

v)
Convert the binary value 1010111110110010 into

hexadecimal

(1 mark)

vi)
Convert ABCD from hexadecimal to decimal
(2 marks)

b)
i)
A Microcomputer has a main storage of 64MB. How

many bytes of data can it store?

(2 marks)

ii)
Use the two’s complement to perform the following
Arithmetic operation
a)
Subtract 2 from 7
b)
15-16

(2 marks)

c)
a)
Define the following terms;

i)
Batch processing

ii)
on-line processing

(2 marks)

b)
List the advantages and two disadvantages of

batch processing

(4 marks)

c)
Define Multi-tasking and give two examples of

Multitasking operating systems

(3 marks)

Q.5) a)
Describe five input devices explaining how they input

data

(10 marks)

b)
i)
Describe the computer hierarchy of storage i.e. the

4 levels of storage

(10 marks)

ii)
Describe volatility in memory storage stating the
two categories of volatility

(2 marks)
………………..
Page 3 of 3

Seit 101: Information Technology Fundamentals Question Paper

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