A collection of controlled documents on the Internet is called the World Wide Web. Each document is called a Web Page. It may consist of the text, graphics, video or audio etc. The Web developers of the Web pages is called the Web page Author.
IT Expert System provides the latest information.
There are the following techniques are used to develop the Web pages:
HTML:
HTML stands for Hyper Text Markup Language. It is a formatting language used to develop the web pages. Web pages can be viewed in a web browser. Internet Explorer and the Netscape Navigator are the two most popular web browsers.
HTML is not a programming language. It is used to define text, graphics, video or audio in the webpages. It is also used for tags or markups to specify how to contents of the webpage will be displayed. HTML code can be written in any text editor like the Notepad, Notepad++, PSPad or DocPad etc.
Scripts:
The script is an interpreted program that runs on the customer computer. It is written in a scripting language. An interpreted language also used to write scripts is called scripting language. The scripting language is also easier to learn. There are various types of scripting languages.
Applet:
A small Java program that can be embedded in the HTML page is called an applet. It runs faster than the script language because it is compiled. It is different from the Java applications. It cannot access resources on the local computer such as files and serial devices like a modem, printers etc. It is also prohibited from communicating with most other computers across a network. Normally, an applet can only connect on the computer from which the applet was sent.
Servlet:
An applet that runs on a Web server is called Servlet. It responds to requires from clients. Servlets extend a Web server by generating content dynamically.
ActiveX Controls:
ActiveX is an arrangement of object-oriented technologies that enable parts on a system to speak with each other. ActiveX control keeps running on a client PC rather than the server.
Benefits of Using Scripts, Applets, Servlets & ActiveX Controls:
There are the many benefits of using scripts, applets servlets, and ActiveX controls. They provide the following facilities:
Ø Multimedia Effects: They add special multimedia effects to Web pages such as animated graphics, scrolling text, calendars, and advertisements etc.
Ø Interactive Capabilities: They provide interactive capabilities to the webpages.
Ø Counters: They are used to create counters for the Websites. A counter is used to track the number of visitors to a website.
Ø Image Map: A graphic that is used as a hyperlink is called an image map. Different parts of the same image may link to different web images.
Ø Processing Forms: Processing forms are used to collect data from visitors. The information entered in the forms is processed by scripts or the applets.
Ø CGI Programs: CGI stands for Common Gateway Interface. It is a standard that defines how to Web server communicates with outside sources. A program that manages this communication is known as a CGI program or CGI script.
No comments:
Post a Comment