Xerox Network System - définition. Qu'est-ce que Xerox Network System
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Qu'est-ce (qui) est Xerox Network System - définition

SUITE OF COMPUTER NETWORK PROTOCOLS
XEROX Network Services; Xerox XNS; Xerox network services; Internet Datagram Protocol; Packet Exchange Protocol; Sequenced Packet Protocol; Xerox Network Services; Internetwork Datagram Protocol; Xerox Network Systems Architecture

Xerox Network System      
<networking> (XNS) A proprietary network architecture developed by the Xerox Office Systems Division of {Xerox corporation} at Xerox PARC in the late 1970s/early 1980s to run on LAN (Ethernet) and WAN networks. The XNS protocol stack provided routing and packet delivery. Implementations exist for 4.3BSD derived systems and the Xerox Star computers. Novell based much of the lower layers of their protocol suite IPX/SPX on XNS. The main components are: Internet datagram protocol (IDP), Routing information protocol (RIP), Packet Exchange protocol (PEP), and Sequences packet protocol (SPP). XNS has strong parellels to TCP/IP in that the {network layer}, IDP, is roughly equivalent to IP. RIP has the same functions (and obviously name) as the routing information protocol, RIP. SPP, a connectionless transport layer protocol, is similar to UDP. PEP is also in the transport layer but is connection-oriented and similar to TCP. XNS specifically is no longer in use due to the all pervasiveness of IP. XNS denotes not only the protocol stack, but also an architecture of standard programming interfaces, conventions, and service functions for authentication, directory, filing, e-mail, and remote procedure call. XNS is also the name of Xerox's implementation. Many PC networking companies, such as 3Com, Banyan, Novell, and Ungermann-Bass Networks used or use a variation of XNS as their primary transport protocol. XNS was desigined to be used across a variety of communication media, processors, and office applications. UB, (now a part of Tandem Computers) adopted XNS in developing its Net/One XNS routing protocol. [Or is it "Service(s)"? Date?] (2003-11-10)
Xerox Star         
  • Evolution of the used document icon shape
  • [[Rank Xerox]] brochure for 8010/40 system
  • Compound document and desktop of 8010/40 system
  • Windowed interface with scrollbars and greyscale graphics
WORKSTATION
Xerox 8010; 8010 Star Information System; 8010 Star; Xerox 8010 Star Information System; Xerox 8010 Information System; Fuji Xerox J-Star; J-Star (computer); Star (computer); Xerox Star 8010; Star (Xerox); Star 8010; Xeros 8010 Information System; Xerox Dorado
Xerox         
  • 160px
  • 160px
  • Rank Xerox logo used in 1980s
  • 160px
  • The [[Xerox Alto]] workstation was developed at Xerox PARC.
  • Xerox WorkCentre 6605
  • Xerox logo 1968–2008, designed by [[Chermayeff & Geismar]]
  • Xerox "Pixellated X" logo introduced in 1994
AMERICAN DOCUMENT MANAGEMENT CORPORATION
Xerox Corporation; Xerox Document Company; Xerox Corp.; XEROX; XtraPrint; Xerox Research Centre of Canada; Xerox A/S; NewField IT; Xerox Corp; Xerox Research Centre Europe; Xerox Systems Institute; @Xerox; Haloid Photographic; Xerox Holdings Corp; Xerox Holdings; Xerox Holdings Corporation
(Xeroxes, Xeroxing, Xeroxed)
1.
A Xerox is a machine that can make copies of pieces of paper which have writing or other marks on them. (TRADEMARK)
The rooms are crammed with humming Xerox machines.
N-COUNT: usu N n
2.
A Xerox is a copy of something written or printed on a piece of paper, which has been made using a Xerox machine.
N-COUNT
3.
If you Xerox a document, you make a copy of it using a Xerox machine.
I should have simply Xeroxed this sheet for you.
VERB: V n

Wikipédia

Xerox Network Systems

Xerox Network Systems (XNS) is a computer networking protocol suite developed by Xerox within the Xerox Network Systems Architecture. It provided general purpose network communications, internetwork routing and packet delivery, and higher level functions such as a reliable stream, and remote procedure calls. XNS predated and influenced the development of the Open Systems Interconnection (OSI) networking model, and was very influential in local area networking designs during the 1980s.

XNS was developed by the Xerox Systems Development Department in the early 1980s, who were charged with bringing Xerox PARC's research to market. XNS was based on the earlier (and equally influential) PARC Universal Packet (PUP) suite from the late 1970s. Some of the protocols in the XNS suite were lightly modified versions of the ones in the Pup suite. XNS 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 XNS were placed in the public domain in 1977. This helped XNS become the canonical local area networking protocol, copied to various degrees by practically all networking systems in use into the 1990s. XNS was used unchanged by 3Com's 3+Share and Ungermann-Bass's Net/One. It was also used, with modifications, as the basis for Novell NetWare, and Banyan VINES. XNS was used as the basis for the AppleNet system, but this was never commercialized; a number of XNS's solutions to common problems were used in AppleNet's replacement, AppleTalk.