EtherTalk

EtherTalk is an implementation of the AppleTalk protocol over Ethernet that was developed by Apple Computer for its Macintosh product line. It gradually fell out of use as Mac OS X transitioned to.

History
EtherTalk 1.0 was first released in mid-1987 for the Macintosh II computer, which featured NuBus slots to accept early Ethernet cards. Apple eventually phased out support for old AppleTalk-based protocols in Mac OS X (now macOS).