The document provides an overview of computers, including their history and components. It discusses how Charles Babbage designed the Analytical Engine in the 19th century, laying the foundations for modern computers. It defines a computer as an electronic device that accepts, stores, processes, and outputs data. Computers have hardware and software components - hardware includes input/output devices and storage, while software includes operating systems and application programs. The document also outlines the main types of computers - supercomputers, mainframes, and personal computers - and describes their relative processing power, size, and cost.

2. PRESENTATION
ON
COmPuTER

3. HISTORY OF COmPuTER
• The computer as we know it today had its beginning with
19th
century by English mathematics professor name
“Charles Babbage”.
• He designed the Analytical Engine and it was this design
that the basic framework of the computers of today are
based on.

4. INTRODuCTOIN OF COmPuTER
 The word “computer” comes from the word “compute” which means “to
calculate” . Hence people usually consider a computer to be a calculating
device that can perform arithmetic operations at high speed.
 A computer is an electronic machine that accepts data, stores and
processes data into information. The computer is able to work because
there are instructions in its memory directing it.
 It is an information processing machine. The main part of computer are
HARDWARE and SOFTWARE.
 All computer system can perform the functions of inputting, storing,
processing, controlling, styling and outputting data and information.

5. TYPES OF COMPUTER
Super computer
Mainframe computer
Personal computer

6. Super computer
This computer is:
Largest,
Fastest,
Most powerful and
Most expensive computer.
Mainframe computer
This is the little smaller and less powerful then super computer, but
like super computer it is also expensive. This types of computer handling all
kinds of scientific and business applications.
Personal computer
This is the computer that most people use in their daily lives. This
computer is much smaller, less powerful and less expensive than the
supercomputer and the mainframe computer.

7. haRdwaRE
Hardware is the component that
can be seen and touched.

9. input devices
• Input devices enable user to enter information and command
into the computer.
•

10. Output devices
• Output devices are used to supply processed data.

11. Processing devices
• Processing devices process the data as per the instructions
and send the results to the output devices.

12. Storage devices:
• Storage devices are those which store the data in its
memory.

13. Computer software
 Software means a program which is installed on a machine for
a specific purpose.

14. System Software
A system software handle the hardware of a machine which configure the
hardware penetration.
Example: Windows, DOS, UNIX, VIPRO.
Application Software:
An application software is meant to establish relation between utility software
and system software.
 Utility Software:
These are the software is the software generally provided by the vendors as
readymade packages to do some specific operations.