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 GIF

Acronym for Graphics Interchange Format, GIF is a graphics file format that uses a compression scheme originally developed by CompuServe. Because GIF files are compressed, the file can be quickly and easily transmitted over a network. That's why it is the most commonly used graphics format on the World Wide Web.

 Gateway

A gateway refers to hardware or software that bridges the gap between two otherwise incompatible applications or networks so that data can be transferred among different computers.