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Online transactions refers to transactions which are initiated directly by the system and
immediately processed by the system and at the same time output immediately they are
processed.
Offline transactions refers to transactions which are initiated outside the system. They are
not directly processed by the central processing unit. Offline equipment such as key-
punch machines for punching cards have no direct hook-up with then central processing
unit.
gregorymasila answered the question on November 30, 2017 at 12:09
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Date posted: November 30, 2017. Answers (1)
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Date posted: November 30, 2017. Answers (1)
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Explain the meaning of the following terms, bringing out clearly the distinction between the
terms in each pair.
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ii) Preventive and perfective maintenance.
iii) Co-processing and parallel processing.
iv) Logical and physical design of a system.
Date posted: November 30, 2017. Answers (1)
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b) Client/server computing
c) System specification
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Date posted: November 30, 2017. Answers (1)
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Systems walkthroughs are procedures that are commonly used as a means of quality
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Required:
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Date posted: November 30, 2017. Answers (1)
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Date posted: November 30, 2017. Answers (1)
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Client/Server architecture, database technology and networks provide structures which
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Date posted: November 30, 2017. Answers (1)
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Describe the relevance of the following to a Decision Support System (DSS):
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(ii) Query languages;
(iii) Database management system
Date posted: November 30, 2017. Answers (1)
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Management Information Systems should facilitate decision-making at all levels of management.
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Required:
a) Examine the characteristics of information used in (i) strategic planning and (ii) operational
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Date posted: November 30, 2017. Answers (1)
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Business process re-engineering (BPR) is the fundamental rethinking and radical redesign of
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Required:
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Date posted: November 30, 2017. Answers (1)
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The general manager of a large organisation has asked you to draw up a document
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Date posted: November 30, 2017. Answers (1)
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Selling of products, services and information via the computer networks including the internet.
Required:
a) Brief explanation of the following concepts as relates to e-commerce:
i) Electronic market.
ii) Electronic purse.
iii) Cyber banking.
iv) Cyber mall.
Date posted: November 30, 2017. Answers (1)
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Most systems are obsolescent the day they become operational. Comment on this statement giving six key reasons why changes to a system are so often necessary after it has been implemented.
Date posted: November 29, 2017. Answers (1)
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Describe the functional characteristics and applicability of the backing store.
Date posted: November 29, 2017. Answers (1)
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i) In ROM
ii) On Disk
Date posted: November 29, 2017. Answers (1)
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Access control is the restriction of unauthorised access to a portion of a computer system or the
entire system.
Required:
a) Explain the following control techniques and their significance in the context of data security.
i) Biometric control
ii) Encryption
iii) Logical access
Date posted: November 29, 2017. Answers (1)
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Application controls can be classified into three major categories, processing controls and
output controls.
Describe the objective of each control and examine the techniques within each to ensure
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Date posted: November 29, 2017. Answers (1)
- Explain how the use of Information Technology (IT) can bring about improvements in productivity within a business organisation(Solved)
Explain how the use of Information Technology (IT) can bring about improvements in productivity within a business organisation.
Date posted: November 29, 2017. Answers (1)
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Prototyping is based on the simple idea that people can express more easily what they like or
do not like about an actual working system.
Required:
(a)
(i) Examine four guidelines required for the development of a prototype.
(ii) Select two facilities usually found in fourth generation languages (4GLs) and explain their
application in developing a prototype system.
Date posted: November 29, 2017. Answers (1)
- Organisation information systems are categorised under: (i) Transaction Processing System (TPS)(Solved)
Organisation information systems are categorised under:
i) Transaction Processing System (TPS)
ii) Management Information Systems (MIS)
iii) Decision Support System (DSS)
iv) Executive Information System (EIS)
v) Expert Systems (ES)
Required:
Suggest one application of each of the systems types listed above for each of the following
functional areas of business:
- Sales and marketing
- Finance
Date posted: November 29, 2017. Answers (1)