!!! Overview
[{$pagename}] ([XNS]) is a computer networking [protocol] suite developed by [Xerox Corporation] within the [{$pagename}] [Architecture]. 

[{$pagename}] provided general purpose [network] [communications], internetwork [routing] and packet delivery, and higher level functions such as a reliable stream, and [Remote Procedure Calls]. 

[{$pagename}] predated and influenced the development of the [OSI-Model], and was very influential in [Local Area Network] designs during the [1980s]. [{$pagename}] had little impact on [TCP-IP], however, which was designed earlier.

[{$pagename}] was developed by the [Xerox Systems Development Department] in the early [1980s], who were charged with bringing [PARC]'s research to market. 

[{$pagename}] was based on the earlier (and equally influential) [PARC Universal Packet] ([PUP]) suite from the late [1970s]. Some of the [protocols] in the [{$pagename}] suite were lightly modified versions of the ones in the [PUP] suite. [{$pagename}] added the concept of a network number, allowing larger networks to be constructed from multiple smaller ones, with routers controlling the flow of information between the networks.

The [protocol] suite specifications for [{$pagename}] were placed in the [Public Domain] in [1977|Year 1977]. This helped [{$pagename}] become the canonical [Local Area Network]ing [protocol], copied to various degrees by practically all networking systems in use into the [1990s]. [{$pagename}] was used unchanged by [3Com Corporation]'s 3+Share and [Ungermann-Bass]'s Net/One. [{$pagename}] was also used, with modifications, as the basis for [Novell INC] [NetWare], and [Banyan VINES]. [{$pagename}] was used as the basis for the [AppleNet] system, but this never commercialized; a number of [{$pagename}]'s solutions to common problems were used in [AppleNet]'s replacement, [AppleTalk].

!! More Information 
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* [#1] - [Xerox_Network_Systems|Wikipedia:Xerox_Network_Systems|target='_blank'] - based on information obtained 2016-08-10