Bonjour

Bonjour, formerly Rendezvous, is a "zero-configuration' networking protocol used to access LAN devices from Mac OS X. It was renamed in 2005 due to a dispute regarding the name.

Though still supported, Bonjour has been largely supplanted by AirPrint, which combines Bonjour with the to support Wi-Fi-connected devices running iOS 4.2, Mac OS X 10.7 (Lion) or later.