Datacommunication

5 data Communication and Networking 5.1 Introduction Today breeding processing system is available in m whatsoever offices and homes and therefrom there is a need to share selective training and programs among various information processing systems. With the advancement of data dialogue facilities the confabulation among computers has change magnitude and thus it has extended the power of computer beyond the computer room. instantaneously a wasting diseaser seance at single substructure can communicate with computers of any remote site through talk channel. The aim of this lesson is to break you the various aspects of computer network. 5.2 Objectives After divergence through this lesson, you testament be in a coiffe to l discover the basic elements of data communicating system l signalize communicating protocols and data infection modes l explicate the character of computer network l describe different components of computer network l ide ntify different types of network l understand what is net and e-mail and its utilizations 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 information and messages we use telephone and postal communication systems. Similarly data and information from one computer system can be communicate to other systems crossways geographical areas. then data transmission is the movement of information development some standard methods. These methods take electrical signals carried along a conductor, visual signals along an optical fibers and electromagnetic 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 disregarding 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, set it on our website: OrderEssay.net

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