In a short period of time computer networks have become an indispensable part of
business, industry, entertainment as well as a common-man's life
. These applications
have changed tremendously from time and the motivation for building these networks are
all essentially economic and technological
.
Initially, computer network was developed for defense purpose, to have a secure
communication network that can even withstand a nuclear attack
. After a decade or so,
companies, in various fields, started using computer networks for keeping track of
inventories, monitor productivity, communication between their different branch offices
located at different locations
. For example, Railways started using computer networks by
connecting their nationwide reservation counters to provide the facility of reservation and inquiry from any where across the country
.
And now after almost two decades, computer networks have entered a new dimension;
they are now an integral part of the society and people
. In 1990,s computer network
started delivering services to private individuals at home
. These services and motivation
for using them are quite different
. Some of the services are access to remote information,
person-person communication, and interactive entertainment
. So, some of the
applications of computer networks that we can see around us today are as follows:
Marketing and sales: Computer networks are used extensively in both marketing and
sales organizations
. Marketing professionals use them to collect, exchange, and analyze
data related to customer needs and product development cycles
. Sales application
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