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2. INTRODUCTION TO
COMPUTER
Presented by
Aniqa Shuhab

3. OUTLINE
 What is computer
 Data
 Information
 Input and output
 Input output devices
 Software and hardware
 Types of computer
 Use of computer
 Conclusion

4. COMPUTER
 Computer comes from the word
“COMPUTE”
 Compute means “TO CALCULATE”
 A computer is a ELECTRONIC device
that
 Accepts input,
 Process the data
 Store the data
 produces output”.
Input Processing
Instructions
Output

5. DATA AND INFORMATION
DATA
Any Combination of facts and figures in
their raw or unprocessed form.
INFORMATION
It is a meaningful collection of data.

6. INPUT AND OUTPUT
 INPUT
 Any information or data that's entered
or sent to the computer
 Output
 Anything that is displayed from the
computer is output.
 Input device
 Hardware used to enter data and
instructions
 Output device
 Hardware that conveys information to
a user

8. SOFTWARE AND HARDWARE
Hardware
 Physical components
that make up a
computer system
Software
 Software, also called a
program, tells the
computer what tasks to
perform and how to
perform them System
Software

9. TYPES OF COMPUTERS
Desktop
Laptop Tablet Pc
PDA Palm PC Net book

10. MAINFRAME
 Minicomputers

11. SUPERCOMPUTERS

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EXAMPLES OF COMPUTER USAGE
What are five categories of computer users?
Home Small Office/
Home Office (SOHO)
Mobile
Large Business Power

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