A computer is defined as an electronic device that can process data. The basic idea of computing developed in the 1200s with the invention of the abacus. Major developments included the first mechanical calculators in the 1600s and the first general-purpose electronic computer in the 1940s. A computer has basic components like a processor, memory, input devices like a keyboard and mouse, and output devices like a monitor and printer. It processes data through input, processing, output, and storage cycles using binary language and increasing units of data storage. Computers are now used widely in homes, businesses, medicine, science, and institutions but also have limitations and disadvantages.

2. INTRODUCTION
TO
COMPUTER

3. Definition:
• Computer.. Latin word.. compute
• Webster's Dictionary defines "computer" as
any programmable electronic device that can
store, retrieve, and process data.
• The basic idea of computing develops in the
1200's

4. History:
• 2000 years ago.----- invention of abacus
• Blaise Pascal invented Pascaline, a hand
powered adding machine in 1642.
• In the 1694 true multiplying calculator
appears in Germany developed by Gottfried
Liebnitz.

5. • Thomas of Colmar created mechanical
calculator that could add, subtract, multiply,
and divide.
• After 1900 golden era started.
• In 1942, John P. Eckert, John W. Mauchly .
• John Von Neuman in 1945.
• In the 1960’s, efforts to develop the fastest
possible computer with the greatest capacity
reached a turning point

7. Components:
• Mouse, keyboard,
Input • Microphone, Digital camera.
• Monitor, Speakers,
Output • Printer.
• Memory.
System
• Processor.
Unit

8. Information Processing Cycle—four
general operations
•Input.
•Processing.
•Output.
•Storage.

10. Language and Data Representation:
Byte—one character of data
Kilobyte—one thousand bytes of data
Megabyte—one million bytes
Gigabyte—one billion bytes
Terabyte—one trillion bytes

13. .

15. Reliability
Consistency.
Versatility.

17. At Home.
• .

18. In Medical field.
.

19. In Scientific Work.
.

20. Institutions.
.

21. In Business.
.

22. Limitations and
disadvantages

23. • Can’t Think.

25. Disadvantages
• Health Risks.
• Violation of privacy.
• Impact on Labor Force.
• Impact on Environment.
• Public Safety.