COMPUTER STUDIES QUESTIONS WITH ANSWERS
Define portability as used in software selection. (1mk)
Portability refers to whether a program can be copied or installed in more than one computer
List four ways of acquiring software in an organization. (2mks)
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List and describe three guidelines that should be followed when conducting an interview during information gathering (3mks)
Name three responsibilities that are carried out by a network administrator. (3mks)
State the function of the following keys on the computer key board (2mks)(a) Insert
Used to switch between the two typeover modes i.e.
(b) Delete
Delete characters from the cursor position from left to right
State two practices to be observed in order to ensure the safety of the computer user. (2mks)
CHARACTERISTICS OF A COMPUTER INFECTED WITH A VIRUS
Describe virtual reality as used in computers. (2 marks)
Virtual Reality is the computer generated simulation of a three-dimensional
image or environment that can be interacted with in a seemingly real or physical way by a person using a specialized electronic head gear, State three ways of transforming a picture embedded in a Desktop Publishing programme in order to fit in a designated space on a document. (3 marks)
Ways of transforming a picture in a DTP
Differentiate between a line printer and a page printer as used in computers. (2 marks)
A line printer is an impact printer that prints one entire line of text at a time
while a page printer is a non impact printer that prints a Whole page at a timer Read/Download Question Paper![]()
Marking SchemeExplain three functions of an information system in an organisation.
(b) Explain two benefits that a company would gain from using batch processing method for data processing
(c) (i) Convert the number 11101.1 12 to its decimal equivalent.
(ii) Perform the following binary operation 110112 + 1012
RESPONSES
a) Functions of information system in an organization.
A school has been advised to employ a database administrator. State three responsibilities of this personnel in the school.
(b) Explain two ways in which computers can be used in the transport industry.
(c) Mary was advised to partition a hard disk for her computer. Explain two reasons that may have necessitated this. (d) Explain a reason for conducting each of the following studies in systems development: (i) Schedule feasibility; (ii) Technical feasibility.
RESPONSES
a) Possible responsibilities of a database admin in a school
Distinguish between a microwave transmission and a radio transmission.
(b) Figure 1 shows a computer, network topology. Use it to answer the questions that follow.
(i)Identify the type of topology.
(ii) State the function of each of the parts labelled A and B. (c) A computer laboratory experiences power supply problems. Describe three power related problems that should be addressed.
RESPONSES
b) (i) Bus topology
(ii) A - The Bus cable
c) Problems related to power that should be addressed
Describe three arithmetic errors that may occur during computerised data processing.
(b) Arnold a programmer intends to create a user input interface screen for a system. State three factors that he should consider.
(c)With the aid of an example in each case describe the following types of maintenance. (i) adaptive; (ii) perfective; (iii) corrective.
RESPONSES
a) Arithmetic errors
Truncation error
(i) Adaptive
State two qualities of a good pseudocode.
(b) With the aid of flowchart diagrams, describe each of the following programme control structures:
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