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Cms 100 Introduction To Information Systems (Sunday) Question Paper

Cms 100 Introduction To Information Systems (Sunday)

Course:Bachelor Of Commerce

Institution: Kca University question papers

Exam Year:2011

1
UNIVERSITY EXAMINATIONS: 2010/2011
FIRST YEAR EXAMINATION FOR THE DEGREE OF BACHELOR OF
COMMERCE
CMS 100 INTRODUCTION TO INFORMATION SYSTEMS (SUNDAY)
DATE: DECEMBER2011 TIME: 2 HOURS
INSTRUCTIONS: Answer Question One and Any Other Two Questions
Question One
a) You have been asked by a local secondary school to assist them in selecting a
microcomputer for their use. Name six hardware characteristics you would use to select the
most suitable hardware (6 Marks)
b) Briefly describe the data security risks posed by the following threats
i) Computer hacking (3 Marks)
ii) Computer virus (3 Marks)
iii) Software piracy (3 Marks)
c) Demonstrate briefly how introduction of information technology could affect the following
i) Product and services (2 Marks)
ii) Production economics (2 Marks)
iii) Buyers (2 Marks)
iv) Suppliers (2 Marks)
v) Substitute products (2 Marks)
d) Describe Five structural elements of a computer system (5 Marks)
Question Two
a) Differentiate between decimal number system and hexadecimal number system (4 Marks)
b) Convert the following decimal numbers to binary equivalents
i) 865.7410
ii) 453.1110 (4 Marks)
c) Convert the following decimal number to hexadecimal equivalent
2
i) 34710
ii) 378210 (4 Marks)
d) Add the following binary numbers:
i) 10111 +1111+ 0110
ii) 11011 + 11111 (4 Marks)
e) Subtract the following octal numbers
i) 576 – 177
ii) 757 - 476 (4 Marks)
Question Three
a) Name any three computing resources that can be distributed (3 Marks)
b) List and explain three ways of networking computers to form a distributed data processing
system (6 Marks)
c) Name three risks associated with the distributed data processing systems (3 Marks)
d) Explain the meaning of the following systems terms and give examples of each
i) Stochastic system (2 Marks)
ii) Deterministic system (2 Marks)
e) Explain the purpose of the following system resources
i) System software (2 Marks)
ii) Application software (2 Marks)
Question Four
a) Identify two roles of information systems in an organization. (2 Marks)
b) state and explain the components of an information systems (10 Marks)
c) briefly describe four data communication media (8 Marks)
Question Five
a) Discuss three types of human computer interface (6 Marks)
b) Using diagrams distinguish between closed loop and open loop systems (4 Marks)
c) Using the general systems theory state and explain any five type of systems (10 Marks)

Cms 100 Introduction To Information Systems (Sunday) Question Paper

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