<P> In telecommunications , a communication protocol is a system of rules that allow two or more entities of a communications system to transmit information via any kind of variation of a physical quantity . The protocol defines the rules syntax , semantics and synchronization of communication and possible error recovery methods . Protocols may be implemented by hardware , software , or a combination of both . </P>
<P> In telecommunications , a communication protocol is a system of rules that allow two or more entities of a communications system to transmit information via any kind of variation of a physical quantity . The protocol defines the rules syntax , semantics and synchronization of communication and possible error recovery methods . Protocols may be implemented by hardware , software , or a combination of both . </P>
a set of communications rules for exchanging information
a set of communications rules for exchanging information
communication protocol
communication protocol