Glossary - J

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Javascript:	A programming language most often used in web pages to add features which make the web page more interactive. When JavaScripts are included in an HTML page the scripts are executed by the user's browser, not by the Web page server.
JPEG:	Or Joint Photographic Experts Group, is a commonly used method of compression for images. File extensions for this format are .jpeg, .jiff, .jpg, .JPG, or .JPE with .jpg being the most common on all platforms.
JRE:	Java Runtime Environment, this software package must be installed on a computer in order to run Java applications. JRE does not include development tools.
Jumper:	A jumper is an electrically conductive component that you place over pairs of pins to connect them electronically.
JVM	Java Virtual Machine is a platform-independent programming language that converts Java bytecode into machine language and executes it.