A COMPUTER is "defined as an electronic machine which accepts data as
input, processes and finally gives information as output." A Computer is
the single & greatest invention. The computer is essentially a machine that
enables humans to complete tasks that may be time consuming or very repetitive
in nature. Thus, it achieves by imitating human thought processes. In much, the
same way, that humans think using pathways in their brains that conduct minute
electrical currents, computers too use tiny electrical circuits, which tell it
what to do. The difference being that computers do this at incredible speeds.
In this modern age, man has grown to be heavily dependent on computers to
carry out all kinds of jobs that were done manually before. In banking, for
example, computers allow for millions of transactions to be carried out
involving large sums of money , which would otherwise require thousands of bank
tellers. Computers do the job in a much shorter time and practically free of
any errors. Computers are responsible for air traffic control and the running
of trains to ensure that travel is made as smooth as possible. In factories
now-a-days, computers operate mechanical devices that produce goods we require
for everyday living, in such quantities that would be otherwise impossible to
achieve, if these factories were run by humans alone.
Perhaps the greatest advancements have been made in the field of
communications. All of us are by now familiar with the "Internet."
The internet is "a collection of computer systems and individual terminals
linked up worldwide through telephone lines and other channels." It offers
a cheaper alternative to communicating with people within a country and
internationally through computers. It has also been described as an immense
pool of knowledge just waiting for applications it has given rise to a new
means for countries to carry on trade with each other through
"E-Commerce". It must however be kept in mind that as useful as
computers are. They are not capable of independent thought and still require
human input. In recent times scientists have developed "Artificial Intelligence"
(AI in short) in computers that may enable them to function independently of
man in the future.
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