18- The development of _______ must come before the development of information s
ID: 407090 • Letter: 1
Question
18- The development of _______ must come before the development of information systems.
A.
information systems
B.
computer software
C.
information
D.
information technology
E.
data
19- The following are valid definitions of information, except:
A.
Information is a difference that makes a difference.
B.
Information is data presented in a meaningful way.
C.
Information is knowledge derived from data.
D.
Information is a useful interpretation of data.
E.
Information is data processed by summing, averaging, or other similar operation.
Explanation / Answer
18. Information system is a system that is used for collection, organization, storage and communication of information. Information system is based on data as data is collected, processed and then distributed as knowledge or information.
Thus, development of data must come before the development of information system. Hence the answer is "E" - data.
19. Information can be defined as knowledge, facts or details about something. Information is data presented in a meaningful way - this makes the data logical and relevant to the context in which it is being presented.
Knowledge derived from data and useful interpretation of data, data processed by summing, averaging, or other similar operation are also information. Data is just facts and figures and becomes information when knowledge is gained from these facts and figures. Similarly, the analysis and interpretation of data gives us information about a particular situation. For example you have data on a country's population growth for a decade. This is plain data. Knowledge derived from this data - population growth rate is falling or increasing - is information. The data can be processed to determine the changes in sex ratio, changing demographics etc. This is information.
Hence the answer is option "A" - Information is a difference that makes a difference. This cannot be considered as a valid definition.
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