IICt concept

1. INTRODUCTION TO
INFORMATION AND DATA

2. WHAT IS DATA ?
 Data is the raw material that is to be processed for
information or for collection of details.
 It is unorganized data or facts that are to be processed.
 Numbers, characters, symbols, images etc., which can be
processed by a computer.
 So Data is meaningless

3. EXAMPLES OF DATA
▶ Data of Citizens:
During census, data of all citizens is collected.
▶ Survey Data:
Different companies collect data by survey to know the
opinion of people about their product.

4. DATA CAN TAKE MANY FORMS
 Alphanumeric data (Combination of Numeric and Data).
 Text Data (Sentence and Paragraph used in written Communication).
 Image Data (Graphics, Shapes, figures Etc.).
 Audio (Human Voice & and Sounds)

5. TYPES OF DATA
 Text
 Numeric
 Boolean/Logical
 Images
 Audio
 Video

6. DEFINING INFORMATION
▶ Data that has been come processed into a meaningful form.
▶ Computer process data in to information .
▶ Information is processed data. The data that can be made useful is known as
information
▶ Data does not depend upon information but information depends upon data.
▶ It cannot be generated without the help of data.
▶ Information cannot be generated without the help of data

7. PROCESSING
DATA INFORMATION

8. EXAMPLES OF INFORMATION:
▶Census Report (Total population, Literacy
Rate,Male / Female ratio etc.):
Census data is used to get report/information about total
population of a country and literacy rate etc.
▶Survey Reports and Results:
Survey data is summarized into reports/information to
present to management of the company

9. Input Data Data Is Processed Output Information
Data Is
Meaningless
Processes can be:
Manipulation of data.
Ex. Arithmetic
operations,
Comparing, sorting,
Searching
Information,
is meaningful
DATA
is put in
USING INPUT
DEVICES
e.g. KEYBOARD
INFORMATION
is produced
ON OUTPUT DEVICES
e.g. MONITOR

10. DIFFERENCE BETWEEN DATA AND INFORMATION
Data is the input language for a computer and information is the output
language for human.
Data is unprocessed facts or mere figures but information is processed data
which has been made sense of.
Data does not depend on information but information depends on data and
without it, information cannot be processed.
Data is not specific but information is specific enough to generate meaning