Javascript A famous scripting and open language that is widely supported in Web browsers and other Web tools. It adds interactive functions to HTML pages, which are otherwise static, since HTML is a display language, not a programming language. JavaScript is easier to use than normal Java, but not as powerful and deals mainly with the elements on the Web page. Java source code is compiled into a bytecode, stored in a separate documents, which the Web browser downloads and executes separately from an HTML pages.
Applet is a program you can find it in the Java programming language that can be included in an HTML page, much in the same way an image is included in a page. When you use a Java technology-enabled browser to view a page that contains an applet, the applet's code is transferred to your system and executed by the browser's Java Virtual Machine (JVM).
Filters is a computer program to process a data stream . And some operating systems such as Unix are rich with filter programs. Even Windows has some simple filters built in to its command shell, most of which have significant enhancements relative to the similar filter commands that were available in MS-DOS. Just as in Unix, such a filter usually gets most of its data from standard input (the main input stream) and writes its main results to standard output (the main output stream).
Plug-ins are programs that “plug into” a host program for additional functionality. Plug-ins allow a third-party application to be used within the host program, acting as a kind of liaison or bridge. There are many kinds of plug-ins, but one that many Web surfers will be familiar with is the Acrobat® Reader® plug-in for Web browsers. This allows .pdf files to be read within the browser window. Other popular browser plug-ins include QuickTime® to view movies, and the Flash® plug-in to view Flash scripts.
No comments:
Post a Comment