Apple's local area network architecture introduced in 1985. It supports Apple's proprietary LocalTalk access method as well as Ethernet and Token Ring. The AppleTalk network manager and the LocalTalk access method are built into all Macintoshes and LaserWriters. With other products from Apple and third parties, support for AppleTalk has been made available for PCs, VAXs and Unix workstations. A routable protocol patterned after the OSI model, Appletalk was superseded by TCP/IP. See AFP and TCP/IP.