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