applet

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applet

Computing a computer program that runs within a page on the World Wide Web
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

applet

[′ap·lət]
(computer science)
A small program, typically written in Java.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

applet

(World-Wide Web)
A Java program which can be distributed as an attachment in a World-Wide Web document and executed by a Java-enabled web browser such as Sun's HotJava, Netscape Navigator version 2.0, or Internet Explorer.

Navigator severely restricts the applet's file system and network access in order to prevent accidental or deliberate security violations. Full Java applications, which run outside of the browser, do not have these restrictions.

Web browsers can also be extended with plug-ins though these differ from applets in that they usually require manual installation and are platform-specific. Various other languages can now be embedded within HTML documents, the most common being JavaScript.

Despite Java's aim to be a "write once, run anywhere" language, the difficulty of accomodating the variety of browsers in use on the Internet has led many to abandon client-side processing in favour of server-side Java programs for which the term servlet was coined.

Merriam Webster "Collegiate Edition" gives a 1990 definition: a short application program especially for performing a simple specific task.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

applet

A small application, such as a utility program or limited-function spreadsheet or word processor. Java programs that are run from the browser are always known as applets. See midlet, crapplet and Java applet.
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