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i) Serial transmission
In serial transmission, bits flow in a continuous stream. It is the way most data is sent over
telephone lines. It is used by external modems typically, connected to a microcomputer through a
serial port. The technical names for such serial ports are RS-232C connector or asynchronous
communications port. .
ii) Parallel mode
In parallel transmission, bits flow through separate lines simultaneously (at the same time).
Parallel transmission is typically limited to communications over short distances (not telephone
lines). It is the standard method of sending data from a computer’s CPU to a printer.
Kavungya answered the question on May 14, 2019 at 08:34
- Information systems controls consist of all methods, policies and organizational procedures that
ensure the safety of the organization’s assets, the accuracy and reliability of its accounting
records...(Solved)
Information systems controls consist of all methods, policies and organizational procedures that
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records and operational adherence to management standards.
Required:
Describe five types of general information systems controls.
Date posted: May 14, 2019. Answers (1)
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Differentiate between information systems (IS) and information technology (IT).
Date posted: May 14, 2019. Answers (1)
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b) Name six threats to an organization’s information system...(Solved)
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Date posted: May 14, 2019. Answers (1)
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Identify three vital services which information systems can provide to a business organization.
Date posted: May 14, 2019. Answers (1)
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b) State and explain the components of an information system.(Solved)
a) Identify three roles of- information systems in-an. organisation.
b) State and explain the components of an information system.
Date posted: May 14, 2019. Answers (1)
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Describe the characteristics of the following information systems:
i) Transaction processing systems (TPS).
ii) Sales and marketing...(Solved)
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Describe the characteristics of the following information systems:
i) Transaction processing systems (TPS).
ii) Sales and marketing systems.
Date posted: May 14, 2019. Answers (1)
- a) i) Define the term "information systems
ii) State five types of information systems
b) As the information system manager of a company whose operations are highly...(Solved)
a) i) Define the term "information systems
ii) State five types of information systems
b) As the information system manager of a company whose operations are highly automated,
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Identify four measures that you could adopt in order to minimize occupational over-use
syndrome
Date posted: May 14, 2019. Answers (1)
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Explain four security concerns that personal computer users face in an organization.
Date posted: May 14, 2019. Answers (1)
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Small and micro-business enterprises have greater access to a variety of information technology
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Identify the end point security threats to small and micro-business enterprises,
Date posted: May 14, 2019. Answers (1)
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b) Briefly describe four structural elements of a...(Solved)
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Date posted: May 14, 2019. Answers (1)
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might increase the vulnerability of the information systems security:
i. Operator error.
ii. Hardware...(Solved)
For each of the following threats to information systems, security, identify two conditions that
might increase the vulnerability of the information systems security:
i. Operator error.
ii. Hardware malfunction,
iii. Software bugs.
iv. Data errors.
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vi. Theft.
vii. Vandalism and sabotage.
Date posted: May 14, 2019. Answers (1)
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(ii) Highlight four benefits of a knowledge management system to a business organisation,
(iii) Outline three major problems a company...(Solved)
(i) Define the term "knowledge management system".
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Date posted: May 14, 2019. Answers (1)
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Briefly explain the following terms:
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Date posted: May 14, 2019. Answers (1)
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Date posted: May 14, 2019. Answers (1)
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Date posted: May 14, 2019. Answers (1)
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(i) Define the term "management information systems" in the context of information systems.
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Date posted: May 14, 2019. Answers (1)
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(ii) Explain four characteristics of information that is suitable for decision making.
b) Briefly explain four applications of...(Solved)
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Date posted: May 14, 2019. Answers (1)
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Discuss the evolution of information systems.
Date posted: May 14, 2019. Answers (1)
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Date posted: May 14, 2019. Answers (1)
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Describe six guidelines for managing computer passwords.
Date posted: May 14, 2019. Answers (1)