AppleTalk was an outgrowth of the Apple Macintosh computing platform. First introduced in 1984 and updated in 1989, it was designed to provide the Macintosh with a cohesive distributed client/server networking environment. AppleTalk, like the Macintosh, is a "user friendly" network operating system (NOS). All the actual communication operations are masked from the user. To facilitate this, AppleTalk incorporates a dual network identity structure, both operationally and contextually. The operational structure uses binary network addressing to represent network segments, end-nodes, and network services (such as file transfer, printing, and so on). The contextual structure uses names and logical groupings, called zones, as the user ...

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