Communication is the main tool that binds people. It is not only vital in the human life but also in the function of computer. The complete function of a computer is based on the communication. It is an integral part of network programming. Data communications will take place through the medium of protocols. The duty of this protocol includes error detecting, signalling, authenticating and correcting the errors. Hence, it is completely based on the data communication. Here is the data communications devices listed out.

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