Network

To ensure that computers in a network are able to communicate, they must share a common language known as a protocol. A protocol is a set of rules or standards that enables communication between computers in a network. Protocols are software and must be installed on network components that need them. Computers can communicate with each other only if they use the same protocol. If the protocol used by a computer in a network is not compatible with the protocol used by another computer, the two computers cannot exchange information. A variety of protocols are available for use in specific network environments. Although each protocol facilitates basic network communication, each has a different function and accomplishes different tasks.