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Questions and Answers
What is the meaning of Data?
What is the meaning of Data?
- It is the input of any system
- There is no processing of the data
- Unorganized raw facts about something (correct)
- Data is the output of the system
What is the meaning of Information?
What is the meaning of Information?
- Organized data after processing (correct)
- It is the input of any system
- Data is the output of the system
- There is no processing of the data
What is the meaning of Knowledge?
What is the meaning of Knowledge?
- There is no processing of the data
- It is the input of any system
- Knowledge is the output of the system
- A group of accumulated information about something (correct)
What is the meaning of a System?
What is the meaning of a System?
What is the output of an Information System?
What is the output of an Information System?
What does an Information System consist of?
What does an Information System consist of?
What does Knowledge assist in?
What does Knowledge assist in?
What are the components of an Information System?
What are the components of an Information System?
Which of the following is not a type of binomial data?
Which of the following is not a type of binomial data?
What type of data includes date only and time only formats?
What type of data includes date only and time only formats?
Which type of information system provides information in the form of reports to managers?
Which type of information system provides information in the form of reports to managers?
What is the purpose of Decision Support Systems?
What is the purpose of Decision Support Systems?
Which expert system is used for diagnosing mental diseases?
Which expert system is used for diagnosing mental diseases?
What does the expert system ISIS monitor?
What does the expert system ISIS monitor?
In which field is the expert system DENDRAL used?
In which field is the expert system DENDRAL used?
What is the main function of the expert system FOLIO?
What is the main function of the expert system FOLIO?
Which type of data is NOT included in the polynomial data types?
Which type of data is NOT included in the polynomial data types?
What type of data is represented by 'real' data type?
What type of data is represented by 'real' data type?
What type of data is NOT included in the polynomial data types?
What type of data is NOT included in the polynomial data types?
Which expert system is used for diagnosing blood diseases?
Which expert system is used for diagnosing blood diseases?
What does the expert system ISIS monitor?
What does the expert system ISIS monitor?
In which field is the expert system DENDRAL used?
In which field is the expert system DENDRAL used?
What is the main function of the expert system FOLIO?
What is the main function of the expert system FOLIO?
What type of information system provides information in the form of reports to managers?
What type of information system provides information in the form of reports to managers?
'Real' data type represents which type of data?
'Real' data type represents which type of data?
'Date only' and 'Time only' formats are included in which type of data?
'Date only' and 'Time only' formats are included in which type of data?
'Decision Support Systems' provide direct computer support to managers during which process?
'Decision Support Systems' provide direct computer support to managers during which process?
What is the meaning of 'Information Systems' Data Types?
What is the meaning of 'Information Systems' Data Types?
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Study Notes
Data, Information, and Knowledge
- Data refers to facts and figures that are processed, stored, and transmitted by digital systems.
- Information is the result of organizing, analyzing, and interpreting data to reveal meaning and significance.
- Knowledge is the result of using information to understand and make decisions.
Systems
- A system is a collection of components that work together to achieve a common goal.
- An Information System is a system that collects, stores, processes, and distributes information to support decision-making.
Information System Components
- Hardware: physical components such as computers, servers, and networks.
- Software: programs and applications that process and manage data.
- Data: the facts and figures used by the system.
- People: users, managers, and administrators who interact with the system.
- Procedures: rules and guidelines that govern the use of the system.
Information System Output
- The output of an Information System is information that supports decision-making, in the form of reports, charts, and other formats.
Types of Information Systems
- Management Information Systems (MIS): provide information in the form of reports to managers.
- Decision Support Systems (DSS): provide direct computer support to managers during decision-making.
- Expert Systems: mimic human expertise in a particular domain, such as diagnosing diseases.
Data Types
- Binomial data: data that can be classified into two categories (e.g. yes/no, 0/1).
- Date data type: includes date only and time only formats.
- Real data type: represents continuous numerical values.
- Polynomial data types: do not include binary data.
Expert Systems
- MYCIN: used for diagnosing blood diseases.
- ISIS: monitors and controls industrial processes.
- DENDRAL: used in the field of chemistry to identify chemical structures.
- FOLIO: used for selecting and managing investment portfolios.
- PSYCHO: used for diagnosing mental diseases.
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