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Term
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Description
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Java
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A
very powerful programming language for application development.
Java was designed by Sun Microsystems as a language that can be
safely downloaded and run on your computer (as long as your computer
has a Java Interpreter) while you are on the Internet. Small Java
programs, called applets, are used in the development of web pages
and allow for animation and interactivity with the user at home.
Plug-Ins (interpreters) are often included with the newer versions
of browsers such as Netscape and Internet Explorer. |
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JavaScript
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JavaScript
is a scripting language that adds many interesting and interactive
features to web pages viewed with the Netscape web browser. Not
to be confused with Java, which is a powerful full-fledged programming
language, JavaScript can produce some of the interactive features
that Java Applets produce but they are only viewable in the Netscape
browser. |
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Joystick
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Used
mostly for computer flight simulators and action games, a joystick
is an input device that transfers movements you make with the
device into movements on your computer screen. It is used to simulate
arcade-style play for computer games. |
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JPEG
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Joint
Photographics Expert Group. JPEG is a graphics image compression
format used widely on the Internet for full color images because
of its ability to reduce the size of the graphics file. However,
it’s a lossy format. In other words, it compresses the image
by sacrificing or 'averaging' data or information. The higher
the compression ratio, the more image degradation that takes place.
Every time you save the image, it averages or tosses out info.
So it's best to work on an image in another format and do your
final save as JPEG. The file extension is .JPEG or .JPG. |
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Jumper
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Essentially,
a jumper is an on/off switch. Jumpers used to be used extensively
to configure circuit boards and are still found to a certain extent.
Small rows of wire pins (jumper pins) stick up from the circuit
board. A small piece of plastic with metal connectors inside is
placed over two pins at a time making an electrical connection
or turning on that particular circuit configuration. |
