What is Protocol?

In computing, a protocol is a set of rules which is used by computers to communicate with each other across a network.

A protocol is a convention or standard that controls or enables the connection, communication, and data transfer between computing endpoints. In its simplest form, a protocol can be defined as the rules governing the syntax (rule), semantics (meaning), and synchronization of communication.

Protocols may be implemented by hardware, software, or a combination of the two. At the lowest level, a protocol defines the behavior of a hardware connection

A computer networking protocol is nothing but  a set of rules that defines the way data and information will be transferred from one computer to another.

These set of rules will define, when to send a packet of data, when an acknowledgment signal should be given, etc.

The most common protocol, that we must have heard and which is used over in the largest network i.e., the Internet is TCP/IP model. This protocol is divided into two parts, TCP (Transmission Control Protocol) which decides how the systems will communicate with each other and IP (Internet Protocol), which handles the part for addressing the packets and routing them to their respective destinations.








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