A computer system that transfers data between normally incompatible applications or networks. A gateway reformats the data so that it is acceptable for the new network or application before passing it on. Gateways between e-mail systems, for example, allow users on different e-mail systems to exchange messages.
Graphic Interchange Format: An image format type generated specifically for computer use. It can be displayed on almost all web browsers. GIF was developed by CompuServe® Inc.