Computer
Introduction:
Computer is the most
wonderful contribution of modern science. It has no ability to do anything by
itself. It works on the basis of commands given by the operator it can solve
many critical problems within a short time.
Invention:
Charles Babez is called
the father of modern computer. His invented computer had five parts. These were
store, mill, control, input and output. By following the structure of computer
of Babez Harverd university and I.B.M. company combindly invented the modern
computer in 1944.
Classification:
At present many kinds
of computers have been invented. Each of the special systems is called
generation. Now a days fourth generation computer is being used .
Electronic-tube computer is made in place of electrical relay computer.
Working
System:
A computer performs
three functions . It receives data, processes it and at last emits it. At first
the details of work is put into the input of the computer. It is called program.
Usefulness:
Computer is very useful to us. It is used in
our daily life for various purposes.
Demerits:
Inspite of having uncounted merits of computer is has
also some demerits. It weakens the eye-sight of the operator.
Conclusion:
The computer is a
blessing of modern science. We can not go a single moment without it. It
lessens our works and makes our lives easy and simple. So, we should use it all
over Bangladesh.
