What are the functions of protocol in data communication ?

What are the functions of protocol in data communication ?
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The rules for exchanging data or information that actually exist in the form of software are called protocols. Communication software or protocols perform the following tasks in order to transmit data accurately and efficiently. Data Sequencing: Sends large amounts of data in a precise format so that it is not mistaken and can be modified. Data Routing: Finding the best route between sender and recipient before sending data. Flow Control: Speed ​​varies between sender and receiver. Flow control controls the process of exchanging information between the sender and the customer in such a way that there is no problem for the speed to increase or decrease. Error Control: One of the functions of a communication protocol is to detect and correct errors in the information exchange process. Error control ensures that data transmission is accurate. A computer is a data processing device. Computer-processed data is transmitted from one end to the other through transcript systems. The components of a data transcript system are modem , transmitter , switch , receiver etc.
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