What is Protocol?

In networking Protocols are pre defined rules used for the communication between network devices . A protocol may consist of Type of error checking to be used Data compression which method to be used for it Data encryption How to indicate that a device has finished sending message How to indicate that a device has finished receiving a message.. Etc

1. General: Unwritten rules or guidelines that are peculiar to every culture or organization, and are supposed to be observed by all parties in the conduct of business, entertaining, negotiating, politics, etc.2. Product development: Statement of attributes (features and benefits) that a new product must be designed to have. A product protocol is prepared by consulting all parties (customers, marketing, production, distribution) to the project.3. Technology: Set of agreed upon, and openly published and distributed, standards that enables different firms to manufacture compatible devices to the same specifications. All devices made under the same protocol work with one another without any adjustment or modification.

The official procedure or system of rules governing affairs of state or diplomatic occasions is known to be protocol.