The world is moving fast with the advancement
of science and technolozy.Computer is a wonder
of modern science and technolozy.
Charles Babbage,Professor of Mathematics,
thought of this computer in 1830.But professor
Haward Aiken invented the first mechanical
computer in 1944.After that electronic computers
were invented .Now computer is changing
almost everyday.There are two kinds of computers.
These are Mode based and Mathematical based.
The mode based are Analogue computers.In the
past it was used for single purpose.The next
generation of computers is mathematical based.
Besides there are Digital computer,Hybrid computer
and Super computer.The components of computer
are CPU, Key-boards and mouse, monitor, printer
or output device.The three parts of CPU or Central
Processing Unit are memory, arithmetic logic and
controlling unit.The Key-board resembles the
traditional Key-board of type-writer.There are
other function keys F1 to F12 and numeric akin to
a calculator key-pad.
The computer has revolutionized printing,banking
and other industrial works.One can put ten years
of file which can fill 20 cabinets in a small disk.
It can compose books, newspaper and reports
in a great speed.It can play chess and even can
play on musical instrument.Now-a-days,traffic is
also controlled with the help of computers.
Bangladesh has stepped into the era of computers.
She has entered into INTERNET.The world of
information has come to our homes.We all should
learn how to operate computer as the modern world
is the age of computer.
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