2. • Introduction to data and information
• Examples
• Differentiation between data and information system
• Conclusion
3. DEFINITION OF DATA:
• Data is raw facts and figures used for reference and analysis.
• It also includes numbers, characters,images etc. which can be processed by a
computer.
• Data must be interpreted by a computer in order to derive it’s meaning.
• Data is meaningless.
4. DATA TYPES:
• Single character(A,1,% etc)
• Boolean (true or false)
• Text (string)eg:”AB”, “hello” ,”2.5”
• Number (integer or floating-point)
• Picture
• Sound
• Video
6. DIFFERENT FORMS OF DATA
• Alphanumeric data(combination of numbers and letters)
• Text data (Sentences and paragraphs used in written communication)
• Image data (graphics,shapes and figures
• Audio(Human voice/ other sounds)
7. DEFINITION OF INFORMATION:
• Data that has been processed within a context to give it a meaning.
• “It is the result of processing the data”.
• “Information is interpreted data”.
• Information is meaningful.
8. DATA NEED TO BE TURNED INTO MEANINGFUL
INFORMATION:
DATA
1. Each individual homework
and test grades of a
student in one class.
2. 5551237798
3. 100,212,0,32
INFORMATION
• The student’s average grade for
each class
• A person’s phone number (555)123-
7798
• The freezing and boiling points of
water in farhenheit and celcius.
9. DIFFERENTIATION BETWEEN DATA AND
INFORMATION
• Data is a collection of facts, while information puts those facts into
context.
• While data is raw and unorganized, information is organized.
• Data points are individual and sometimes unrelated. Information maps
out that data to provide a big-picture view of how it all fits together.
• Data, on its own, is meaningless. When it’s analyzed and interpreted, it
becomes meaningful information.
10. CONCLUSION
In simple terms we can say that:
DATA IS RAW FACTS AND FIGURES &
DATA IS MEANINGLESS
WHILE
INFORMATION IS DATA THAT HAS BEEN PROCESSED
. INFORMATION IS MEANINGFUL.