What is Java?
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Java is an object-oriented programming language developed primarily by James Gosling and colleagues at Sun Microsystems. The language, initially called Oak (named after the oak trees outside Gosling's office), was intended to replace C++, although the feature set better resembles that of Objective C.
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What is JavaScript?
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JavaScript, often mistyped as "Javascript", is an object-oriented scripting language based on the concept of prototypes. The language is most well known for its use in websites. It was originally developed by Brendan Eich of Netscape Communications under the name Mocha and then LiveScript but then renamed to "JavaScript". JavaScript has a syntax close to that of Sun Microsystems’ Java language. But beside name and syntax the language has more in common with Self than with Java. JavaScript was first standardized in 1997–1999 by ECMA under the name ECMAScript. The standard (as of December 1999) is ECMA-262 Edition 3, and corresponds to JavaScript 1.5. This is also now an ISO 16262 standard.
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What is JPEG?
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Joint Photograhic Experts Group - a common image format. Art and photographic pictures are usually encoded as JPEG files.
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What is JSP?
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Stands for "Java Server Page." This standard was developed by Sun Microsystems as an alternative to Microsoft's active server page (ASP) technology. JSP pages are similar to ASP pages in that they are compiled on the server, rather than in a user's Web browser. After all, they don't call them "server pages" for nothing. However, JSP is Java-based, whereas ASP is Visual Basic-based. JSP pages are useful for building dynamic Web sites and accessing database information on a Web server. Though JSP pages may have Java interspersed with HTML, all the Java code is parsed on the server. Therefore, once the page gets to the browser, it is only HTML. JavaScript, on the other hand, is usually parsed by the Web browser, not the Web server.
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What is Jumper?
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This is a small metal connector that acts as an on/off switch and is used to alter hardware configurations. A jumper is typically made of two wires and a small piece of metal. When the wires are connected by the metal piece, the jumper is turned on, completing the circuit. When the wires are disconnected, the jumper is turned off. Mulitple jumpers, referred to collectively as a jumper block, are often used to tell the computer how a certain device, such as a hard drive or a modem, is configured. They can be found on motherboards, sound cards, graphics cards, I/O cards, CD-ROM interface boards, modems, and hard drive controller boards, and others.
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