Question

what is the need of computer networks?

Answer 1

Information and communication are two of the most important strategic issues for the success of every enterprise.
While today nearly every organization uses a substantial number of computers and communication tools (like telephone or fax), they are often still isolated. While managers today are able to use applications like wordprocessors or spreadsheets, not very many of them use computer-based tools to communicate with other departments or information retrieval programs. 
To overcome these obstacles in an effective usage of information technology, computer networks are necessary. Computer networks can manage to put down the barriers between information held on several (not only computer) systems. Only with the help of computer networks can a borderless communication and information environment be built.

Computer networks allow the user to access remote programs and remote databases either of the same organization or from other enterprises or public sources. Computer networks provide communication possibilities faster than other facilities. Because of these optimal information and communication possibilities, computer networks may increase the organizational learning rate, which many authors declare as the only fundamental advantage in competition.

Besides this major reason why any organization should not fail to have a computer network, there are other reasons as well:

>>cost reduction by sharing hard- and software resources
>>high reliability by having multiple sources of supply
>>cost reduction by downsizing to microcomputer-based networks instead of using mainframesgreater
>>>flexibility because of possibility to connect devices from various vendors

Answer 2

The following are the potential needs for computer networks.

 

Information exchange To exchange data and information between different individual users, it is necessary to interconnect the individual users' computers.

Resource sharing The cost of computer has corne down. However, the cost of a laser printer, bulk storage, and large enterprise software remains high. When computers are interconnected, there is a possibility that, users connected to the network may share the above mentioned resources.