AppleTalk, a protocol suite developed by Apple Computer in the early 1980s, was developed in conjunction with the Macintosh computer.The aim was to allow multiple users to share resources, like files and printers. servers supply these resources and the devices that make use of these resources are called clients. It is one o the first distributed client/server networking system. In this , the interaction between client computers and network servers requires little interaction from the user.
AppleTalk Network Components
Four basic components form the basis of an AppleTalk network: sockets, nodes, networks, and zones.
It is a unique, addressable location in an AppleTalk node.The upper-layer AppleTalk software processes and the network layer Datagram Delivery Protocol (DDP) interact at this point.
It is is a device that is connected to an AppleTalk network.numerous software processes called sockets run in each node.
It consists of a single logical cable and multiple attached nodes. a single physical cable or multiple physical cables interconnected by using bridges or routers may be found. They can be-
-Non extended Networks:
It is a physical network segment that is assigned only a single network number, which can range between 1 and 1024. Each node number in a nonextended network must be unique, and a single nonextended network segment cannot have more than one AppleTalk Zone configured on it.
Also known as a cable range. It is a physical network segment that can be assigned multiple network numbers. It can indicate a single network number or multiple consecutive network numbers.
AppleTalk Physical and Data Link Layers:
The AppleTalk architecture maintains media-access dependencies on such lower-layer protocols as Ethernet, Token Ring, and FDDI.EtherTalk, LocalTalk, TokenTalk, and FDDITalk are the four main media-access implementations .