The Bonjour program is Apple's zero-configuration networking application, which allows computers and devices to automatically find and connect to each other across a network. It comes pre-embedded within many popular Apple programs, including iTunes, iPhoto and Safari, but can also be downloaded as a separate program.
The technology behind Bonjour is based on Internet protocol, which allows it to run on wired or wireless networks. Normal installations of Bonjour only work within a single broadcast domain, although it can be configured to use in a wide area domain. Originally released under the name Rendezvous in 2002, Apple changed the name to Bonjour after an out-of-court settlement with Tibco Software Inc.