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Gateway has several meanings. It may often share meanings with the term gate.
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Computer Terminology
Gateway is a common term in telecommunications; see gateway (telecommunications). A gateway, in the aforementioned sense, is very popular, as it is a computer or a network that allows or controls access to another computer or network.
Gateway also refers to a link in computer programs. Most often attributed to viruses, a gateway acts as a portal between two programs allowing them to share information and bypass certain protocols on a host computer. Although seemingly harmless, a gateway can have tremendous negative effects on personal computers if not used properly.
Gateway, in networking technology, is a node that serves as an entrance to another network, and vice-versa. This is, in fact, an earlier name for Routers and both acutally focus on the same concept - that is, hardware or software that routes (and filters) data coming through it. This retronym, however, now describes the same hardware or software technology that are mostly implemented in corporate enterprises that not only does routing and filtering of data, but also can include added routing, proxy functionality, as well as being advanced as to have Antivirus software scanning and filtering capabilities.
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Companies
Gateway was a former name of the UK supermarket chain now rebranded as Somerfield
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Colleges
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Media
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Hong Kong
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Singapore
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South Africa
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United States
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Canada
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In fiction
In Aliens, Gateway was the name of one of the large space station complexes in Earth orbit.
Gateway is the name of an obscure superhero in Marvel's X-Men series; see Gateway (comics)
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Other
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