OPEN SYSTEMS INTERCONNECT

Domain	Definition
Computing	Open Systems Interconnect (OSI-RM, OSI Reference Model, seven layer model) A model of network architecture and a suite of protocols (a protocol stack) to implement it, developed by ISO in 1978 as a framework for international standards in heterogeneous computer network architecture. The OSI architecture is split between seven layers, from lowest to highest: 1 physical layer, 2 data link layer, 3 network layer, 4 transport layer, 5 session layer, 6 presentation layer, 7 application layer. Each layer uses the layer immediately below it and provides a service to the layer above. In some implementations a layer may itself be composed of sub-layers. OSI is the umbrella name for a series of non-proprietary protocols and specifications, comprising, among others, the OSI Reference Model, ASN.1 (Abstract Syntax Notation 1), BER (Basic Encoding Rules), CMIP and CMIS (Common Management Information Protocol and Services), X.400 (Message Handling System, or MHS), X.500 (Directory Service), Z39.50 (search and retrieval protocol used by WAIS), and many others. Quite apart from it's actual application to real protocols, it also serves as a useful teaching model. (2001-04-29). Source: The Free On-line Dictionary of Computing.
Source: compiled by the editor from various references; see credits.

Specialty Definition: Open systems interconnect

In the 1980s, the International Organization for Standardization (ISO) documented a new effort in networking called Open Systems Interconnect or OSI.

Prior to OSI, networking was completely vendor-developed and proprietary, with standards such as SNA. OSI was a new industry effort, attempting to get everyone to agree to common network standards to provide multi-vendor interoperability. The OSI model was the most important advance in teaching network concepts. However, the actual OSI protocols or "stack" that were specified as part of the project were considered by many to be too complicated. Standards like X.400 for e-mail took up several large books, while Internet e-mail (SMTP) took only a few dozen pages at most in RFC-822 and 823. Most protocols and specifications in the OSI stack are long-gone today, such as token-bus media, CLNP packet delivery, FTAM file transfer, and X.400 e-mail. Only one, the X.500 directory service, still survives with significant usage, mainly because the original unwieldy protocol has been stripped away and effectively replaced with LDAP.

IS-IS also survives as a network routing protocol used by larger telecommunications companies although it has been adapted for use with the Internet protocol.

Expression: OPEN SYSTEMS INTERCONNECT

Modern Translation: OPEN SYSTEMS INTERCONNECT

Language		Translations for "OPEN SYSTEMS INTERCONNECT"; alternative meanings/domain in parentheses.
Danish		Government Open Systems Interconnect Profile (GOSIP, Government Open Systems Interconnect Profile), GOSIP (GOSIP, Government Open Systems Interconnect Profile). (various references)

Dutch		Government Open Systems Interconnect Profile (GOSIP, Government Open Systems Interconnect Profile). (various references)

Finnish		GOSIP (GOSIP, Government Open Systems Interconnect Profile). (various references)

French		spécifications GOSIP (Government Open Systems Interconnect Profile). (various references)

German		Government-Open-Systems-Interconnect-Profile (GOSIP, Government Open Systems Interconnect Profile). (various references)

Greek		Κατατομή �"ιασύνδεσης Κυβερνητικών Ανοικτών Συστημάτων (GOSIP, Government Open Systems Interconnect Profile), GOSIP (GOSIP, Government Open Systems Interconnect Profile). (various references)

Pig Latin		openay ystemssay interconnectay

Portuguese		perfil de interligação de sistemas abertos do governo (GOSIP, Government Open Systems Interconnect Profile), GOSIP (GOSIP, Government Open Systems Interconnect Profile). (various references)

Spanish		Perfil para OSI del gobierno (GOSIP, Government Open Systems Interconnect Profile), Perfil Gubernamental OSI (GOSIP, Government Open Systems Interconnect Profile), Perfil Gubernamental MARISA (GOSIP, Government Open Systems Interconnect Profile). (various references)
Source: compiled by the editor from various translation references.

OPEN SYSTEMS INTERCONNECT

Specialty Definition: OPEN SYSTEMS INTERCONNECT

Computing

Specialty Definition: Open systems interconnect

Crosswords: OPEN SYSTEMS INTERCONNECT

Expression: OPEN SYSTEMS INTERCONNECT

Modern Translation: OPEN SYSTEMS INTERCONNECT

Danish

Dutch

Finnish

French

German

Greek

Pig Latin

Portuguese

Spanish

INDEX

Expression using "OPEN SYSTEMS INTERCONNECT": Government Open Systems Interconnect Profile. Additional references.
Source: compiled by the editor from various references; see credits.