DAS 104 INTRODUCTION TO COMPUTER & APPLICATIONS

MAASAI MARA UNIVERSITY
REGULAR UNIVERSITY EXAMINATIONS
2018/2019 ACADEMIC YEAR
FIRSTYEAR FIRST SEMESTER
SCHOOL OF ARTS AND SOCIAL SCIENCES/
SCHOOL OF BUSINESS AND ECONOMICS
DIPLOMA IN SOCIAL WORK /
DIPLOMA IN BUSINESS
MANAGEMENT
COURSE CODE: DAS 104
COURSE TITLE: INTRODUCTION TO COMPUTER & APPLICATIONS

DATE: 22ND AUGUST, 2019 TIME: 0830 – 1030 HRS
INSTRUCTIONS TO CANDIDATES
1. Answer Question ONE and any other TWO questions
2. Do not forget to write your Registration Number
This paper consists of 3 printed pages. Please turn over.
DAS 104: Introduction to Computer and Applications Page 2
Question One
a) What is computer hardware? (1 Mark)
b) Name the computer elements needed to process data into
information. (4 Marks)
c) The central processing unit is referred to as the brain of the
computer. It functions through the interaction of three main units.
List and describe the units? (9 Marks)
d) With the aid of a diagram give a summary of the processing
hardware. (12 Marks)
e) Outline four factors that a company should consider when selecting
computer hardware (4 Marks)
Question Two
a) Software is classified into two major types. Outline and explain them.
(4 Marks)
b) Name and briefly describe the two categories of system software
(4 Marks)
c) List and describe four utility programs that you know (12 Marks)
DAS 104: Introduction to Computer and Applications Page 3
Question Three
a) Discuss the online processing. Mention its application, advantages and
disadvantages (15 Marks)
b) Mzima investment Ltd intends to purchase several computers for their use.
Outline five factors that the company should consider when selecting
computer hardware. (5 Marks)
Question Four
a) What is a binary number? (2 Marks)
b) Find the sum of the following numbers:
i) 10101 and 11011 (2 Marks)
ii) 1011001 and 111010 (2 Marks)
c) Find the difference of the following numbers
i) 10010 from 1011011 (2 Marks)
ii) 101100 from 1000101 (2 Marks)
d) Convert the following decimal numbers to binary
i) 892 (2 Marks)
ii) 196 (2 Marks)
iii) 71 (2 Marks)
e) Convert the following binary numbers to decimal
i) 100101 (2 Marks)
ii) 111101000 (2 Marks)

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