A communication protocol is a system of rules that allows 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.

What is protocol in simple words?

noun. pro·​to·​col | \ ˈprō-tə-ˌkȯl , -ˌkōl, -ˌkäl, -kəl \ Essential Meaning of protocol. 1 : a system of rules that explain the correct conduct and procedures to be followed in formal situations The soldier's actions constitute a breach of military protocol.

What do mean by the term protocol?

A protocol is a set of rules and guidelines for communicating data. Rules are defined for each step and process during communication between two or more computers. Networks have to follow these rules to successfully transmit data.