Define Computer Networking. What Are It’s Application Areas?

Computer Networking Concepts

A computer networking is a group of computer systems and other computing hardware devices that are linked together through communication channels to facilitate communication and resource-sharing among a wide range of users. For example, a business might use a computer network connected via cables for wireless transmission in order to gain access to a common server or to share programs, files and other information. Computer network offers the following advantages. They are as follows:

a. Computer network facilitiates communication via email, video confferencing, instant messaging, etc.
b. Computer network enables multiple users to share a single hardware device like  a printer or scanner.
c. Computer network enables file sharing across the network.
d. Computer network make information easier to access and maintain among network users.
e. Computer network allows for the sharing of software or operating programs on remote systems.

Application of Computer Network
Computer networks have made a major impact on the society as a whole but we will discuss only of the important ones.

Define Computer Networking. What Are It's Application Areas?
Define Computer Networking. What Are It’s Application Areas?
  • Sharing
    The potential advantage of network is to provide an easy and flexible means of sharing. There are three distinct types of sharing:
    1. These are often expensive. It is impractical for each computer on the network to have both its laser printer and dot matrix printer. A mainframe may have one of each connected to it allowing all users controlled access in a cost effective manner.
    2. Users of a multi-user system can share and  exchange information in a number of ways. Examples are: sending electronic mail or having controlled access to the some files or database.
    3. In a traditional time sharing system, all control is performed centrally; if the processor fails then the entire system fails. In a network system, this need not be the case. The failure of one node should not have a ‘domain’ effect on the rest. This is called distributed control and is a very lively area of research at present.
  • Access to Remote Database
    Another major area of network use is access to remote database. It is easy for the average person sitting at his PC to make reservation for airplanes, trains, hotels and so on anywhere in the world with instant confirmation.
  • Communication Facilities
    A third category  of potential widespread network use is as a communication medium. It is possible for everyone, not just people in  the computer business, to send and receive electronic mail. This mail is also able to contain digitized voice, still pictures and even video images. Computer network is a sophisticated communication system that facilitates communication, sharing of files and data more efficiently. It also reduce the need  for hard copies of all documents.

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