Jargon Buster J

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Java
Java: A website building language that allows the creation of small programmes called applets that run in response to mouse clicks and produce sounds, video, or other effects.

JPEG - Joint Picture [Experts] Group
Joint Picture [Experts] Group: pr. "jay-peg") A standard type of compressed graphics file, widely used on the WWW. Particularly good for photographs. See also compression.

Jumper
A pair of small pins that can be shorted with a "shunt" to configure many different aspects of PCs. Usually used in configurations that are rarely changed, such as master/slave settings on IDE drives

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