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Thursday, August 25, 2011

Differences Between Data and Information

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Here we are going to discuss the differences between two typical terms of information technology: Data and Information. Data is a collection of raw facts and figures about an entity. Data may consist of numbers, characters, audio, video or pictures etc. When these data is processed according to requirements, then it is transformed into INFORMATION.

For example, consider Admission system of a Computer College. The candidates will submit admissions forms filled by them. Now all the facts and figures and picture of candidate on form is called data. These data may consist of name, father's name, date of birth, marks obtained, total marks, address, contact number and a latest photo graph of the candidate.
Now the concerned person in the college office will process these data to prepare a merit list. He may calculate percentage of obtained marks of each candidate and arrange the records in descending order by percentage. This merit list is an example of Information. Information is useful in decision making. The merit list will declare the names of students who will have a right to get admission in the college.
Example of Data
Example of Information

 


            DATA


       INFORMATION


1


Data is collection of
raw facts and figures.


Information is
processed data.


2


Data is unarranged and
unorganized..


Information is arranged
and organized..


3

Data
is un-meaningful.
Information
is meaningful.

4




Data is input.



Information is out put.

5




Data is used less frequently.



Information is used frequently.

6


Data represents facts
before processing.


Information represents
results (obtained after processing).


7


Data is not helpful in
decision-making.


Information is helpful
in decision-making.


8


Data is raw material
for information.


Information is the
final product of data.


9


Data are unprocessed
records


Information contains
processed records


10


Data is in large
amounts


Information is in small
amounts


11


If data is lost, it is
very difficult (or even impossible in some situations) to re collect.


If information is lost,
it is easily derived from stored data, again.


12


Data is collected by
observations, recordings, interview or survey etc. For example, if we
record the temperature of each hour recorded in a particular day is called
temperature data.


Now we will process
these temperatures data to find useful information. For example if we
arrange temperatures in ascending order, then we will find the information
like:

Minimum Temperature of
the day= 15 C  and Maximum
Temperature of the day = 25 C.


13


Data is the asset of an
organization and is not available for sale to public.


Normally, information
is available for sale to general public.


14

Data depends upon the sources for collecting data, the collection methods
adopted and the people who will collect data.
Information depends upon data.

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