Datacommunication

5 data Communication and Networking 5.1 Introduction Today breeding processing system is available in m some(prenominal) offices and homes and consequently there is a need to share selective development and programs among various computing devices. With the advancement of data dialogue facilities the confabulation surrounded by reckoners has change magnitude and thus it has extended the power of computer beyond the computer room. instantaneously a wasting diseaser sitting at single idler can communicate with computers of any remote site through talk channel. The aim of this lesson is to bring you the various aspects of computer network. 5.2 Objectives After divergence through this lesson, you go out be in a coiffe to l direct the basic elements of data confabulation system l separate conference protocols and data transmittance modes l explicate the mapping of computer network l describe different components of computer network l identify different types of network l understand what is net and e-mail and its lend oneselfs in modern communication l appreciate the use of air communication 5.3 Data Communication We all are acquainted with some sorts of communication in our day to day life. For communication of knowledge and messages we use telephone and postal communication systems.

Similarly data and information from one computer system can be convey to other systems crossways geographical areas. then data transmission is the movement of information development some standard methods. These methods acknowledge electrical signals carried along a conductor, optical signals along an optical fibers and electro magnetic areas. Suppose a director has to ! write some(prenominal) letters to various clients. First he has to use his PC and Word Processing package to make water the letter, if the PC is connected to all the clients PC through networking, he can send the letters to all the clients within minutes. Thus irrespective of geographical areas, if PCs are connected through communication channel, the data and information, computer files and any...If you want to get a practiced essay, rove it on our website: OrderEssay.net

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