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Web glossary for website construction


May 27, 2021 Website construction guide


Table of contents


Web Glossary


The following words are arranged in alphabetical order


Access (Microsoft Access)

A database system developed by Microsoft. P art of Microsoft Office Pro. Primarily used to run low-traffic Web sites on Windows platforms.

ActiveMovie

Microsoft introduces controls for multimedia program design

Activex

Allows a Web browser to download and execute the Windows Program Programming Interface (API). (See also plug-ins)

Address

See url.

Adsense

An online advertising system provided by Google.

AJAX (Asynchronous JavaScript and XML)

Use JavaScript and XML to create the "art" of interactive Web applications. With Ajax, Web applications can exchange data (asynchronously) on a background Web server and update a part of a Web page without reloading the page.

Learn more about AJAX in our AJAX tutorial

Anchor

On the network side: A hyperlink that starts or ends.

Learn more about links in our HTML tutorial

Adobe Air

An Adobe Integrated Runtime (AIR) system that enables developers to create desktop applications using Web technology (HTML, JAVASCRIPT, Fash).

Android

Android, a mobile operating system, was developed and later acquired by Google.

Anonymous FTP

See FTP Server.

ANSI (American National Standards Institute)

An organization that creates standards for the computer industry. ANSIC standards are responsible.

ANSI C

C Programming language international standards.

ADO (ActiveX Data Object)

Microsoft's data storage technology of any kind provides data access.

Learn more about ADO in our ADO tutorial

ADSL (Asymmetric Digital Subscriber Line)

A special type of DSL line, upload speed and download speed are different.

Agent

See Search agent/search engine

Amaya

An open source web browser editor from W3C to drive leading ideas in browser design.

Animation

Simulate motion series when a set of photos is played.

Anti-virus program

A computer program that discovers and destroys all types of computer viruses.

Apache

An open source Web server. Mostly used on Unix, Linux and Solaris platforms.

Applet

See web gadgets.

Archie

Computer programs to locate files on public FTP servers.

API (Application Programming Interface)

Let the program communicate with another program. O n the web: An interface that allows a web browser or Web server to communicate with other programs. (See also Active - X plug-ins)

ARPAnet

The network test experiment began in the 1970s when the Internet was growing.

Authentication

On the web: How to verify a user's identity on a network or on a computer program.

ASCII (American Standard Compatible with Information Interchange)

128-digit alphanumeric and special control characters are used to store and print text on a computer. Data transmitted over the web in HTML.

See the full list of ASCII codes in our HTML reference

ASF (Advanced Streaming Format)

The format of a multimedia stream. Microsoft's Windows Media development.

ASP (Active Server Pages)

Microsoft's technology allows servers to execute scripts inserted into Web pages.

Learn more about ASP Visit our ASP tutorial

ASX (ASF Streaming Redirector)

XML format for ASF file storage information. Microsoft's Windows Media development.

AVI (Audio Video Interleave)

The video file in the file format. Video compression technology developed by Microsoft.

Banner Ad

(Most common graphic) ads are placed on a Web page as an advertiser's website hyperlink behavior.

Bandwidth

You can measure the speed (amount of data) by sending an Internet connection. More bandwidth for faster connections

Baud

The number of symbols sent per second on the channel.

BBS (Bulletin Board System)

Web-based public sharing of discussions, documents and announcement systems.

Binary Data

data in a form that is readable by the machine.

Bit (Binary Digit)

The smallest unit of data stored on the computer. A bit value is 0 or 1. A computer uses 8 bits to store a text character.

Blog (Web Log)

A site type (usually maintained by an individual) log comments (mostly usually individuals) that indicate events, etc

Blogger

A person maintains or writes content to a blog (blog).

Blogging

Write or add content to the blog (blog).

BMP (Bitmap)

The format used to store the image.

Bookmark

On the web side: A specific Web site link is stored (bookmarked) for future web users to easily access.

Bounce Rate

Site visitors view only one page at the rate at which they leave (bounce).

Browse

The term describes the movement of an entire network user by hyperlinking from page to page using a web browser. (See Web browser).

BPS (Bits Per Second)

Use terminology to describe the speed at which data is transmitted over the Internet.

Browser

See Web browser.

Byte (Binary Term)

The computer storage unit consists of 8 bits. Each byte can store one text character.

C

An advanced programming language for advanced computer application programming.

C++ (C Plus Plus)

The same c complements object-oriented functionality.

C# (C Sharp)

Microsoft's version of C is supplemented by Java-like features.

Case Sensitive

Used to describe sensitivity using capital or lowercase letters

Cache

On the web side: A web browser or web server computer's hard disk stored on a copy of the web page function.

Chat

On-line communication between text-based Internet users.

CGI (Common Gateway Interface)

Describes the rules for how a CGI program communicates with a Web server.

CGI Bin

Store CGI program folders (or directories) on a Web server.

CGI Program

A small program that processes inputs and outputs from a Web server. CGI programs are typically used to process form input or database queries.

Cinepac

Computer video codec

Client

See Web clients.

Client/Server

On the web side: workload-separated communication between the Web client and the Web server.

Click

On the web side: Click on a hyperlink element, such as text or a picture, to create an event on a Web page such as visiting another Page or visiting other parts of the same page.

Clickthrough Rate

The percentage of time a visitor has displayed by clicking on a hyperlink (or ad) page on the page.

Cloud Computing

Applications and data stored on the Internet (not the user's computer).

Codec (Compressor / Decompressor)

A generic term for data compression and decompression technology.

Communication Protocol

Standards (language and a set of rules) that allow computers to interact in a standard way. Examples are IP, FTP, and HTTP.

Learn more about communication protocols in our TCP/IP tutorial

Compression

Faster delivery of Web documents or graphic size (compression) methods over the network.

Computer Virus

A computer program that can damage the display of messages, delete files, and even destroy the computer's operating system.

Cookie

Web browsers are information stored on your computer by a Web server. The purpose of cookies is to provide information about your visit to the website and to use it on subsequent visits to the server.

ColdFusion

Most platforms for web development software (LINUX, UNIX, Solaris, and Windows).

CSS (Cascading Style Sheets)

A W3C recommends defining a Web document style (such as font, size, color, spacing, etc.) language.

Learn more about CSS in our CSS tutorial

Database

In this way, a computer program can easily retrieve and manipulate data computers to store data.

Learn more about the database in our SQL tutorial

Database System

Computer programs that manipulate data in the database (such as MS ACCESS, Oracle, and MySQL).

DB2

From the IBM database system. Mostly used on Unix and Solaris platforms.

DBA (Data Base Administrator)

a person (or software) who manages a database. Typical tasks: backup, maintenance, and execution.

DHCP (Dynamic Host Configuration Protocol)

Internet standard protocol that assigns a new IP address to NEE users.

DHTML (Dynamic HTML)

A common term to describe HTML content can change dynamically.

Dial-up Connection

On the web: A telephone and modem connected to the Internet.

Discussion Group

See Newsgroup.

DNS (Domain Name Service)

The computer program runs on a Web server and the domain name is translated into an IP address.

Learn more about DNS in our virtual hosting tutorial

DNS Server

The Web server performs DNS.

DOM (Document Object Model)

A web object programming model. (See HTML DOM and XML DOM)

Domain Name

The name identification of a Web site. (e.g w3cschool.cn)

Learn more about domains in our virtual host tutorial

DOS (Disk Operating System)

A common disk-based computer operating system (see Operating System). O riginally microsoft IBM PC. Typically used for MS - DOS short writing.

Download

Transfer files from a remote computer to a local computer. O n the web side: Web clients transfer files from a Web server. (See also Upload).

DSL (Digital Subscriber Line)

Broadband access technology based on ordinary telephone lines

DTD (Document Type Definition)

A rule (in one language) that defines a legitimate building block similar to an HTML or XMLweb file.

Learn more about DTD in our DTD tutorial

Dynamic IP

Each time the IP address connected to the Internet changes. (See DHCP and static IP).

E-mail (Electronic Mail)

Send a message from one person to another over the Internet.

E-mail Address

Send an e-mail message to an address used by a person or organization. The typical format is the user name, the host name.

E-mail Server

A Web server-specific e-mail service task.

Encryption

To convert data from its original form, a form of encryption that can only be reversed by a person can be read. Encryption is designed to prevent unauthorized reading of data.

Error

See Web server errors.

Ethernet

A local area network type (see LAN).

Firewall

As a security filter, you can limit the type of network communication behavior software. Most commonly used between personal computers (or LAN) and the Internet.

Flash

The use of vector-based multimedia formats on the Web, developed by Adobe

Form

See HTML form.

Forum

On the web: the same as Newsgroup.

Frame

On the web side: a specific part of the screen is displayed in the browser. Frames are typically used to display different web content.

Frontpage

Windows platform Web development software. Developed by Microsoft.

FTP (File Transfer Protocol)

One of the most common ways to send files between two computers.

FTP Server

A Web server where you can log on and download files (or upload files to). Anonymous FTP is a method of downloading files from an FTP server without using a login account.

Gateway

An application or network that transmits (formats) data that is incompatible with a computer program.

GIF (Graphics Interchange Format)

A storage image compression format developed by CompuServe. One of the most common image formats on the Internet.

GB

Gigabyte, gigabyte, a storage unit of a computer.

Gigabyte

1024 megabytes. Typically rounded down to 1 billion bytes.

Graphics

Introduce pictures (relative text) on the web.

Graphic Monitor

A display that displays graphics.

Graphic Printer

A printer that can print graphics.

Graphical Banner

See Banner Ad.

Helper application

On the web side: A scenario helps the browser display, view, or work that the browser itself cannot handle. (see plug-ins).

Hits

The number of Web objects (web pages or pictures) that have been viewed or downloaded. (See page click).

Home Page

The top (primary) page of a Web site. The default page that appears when you visit a website.

Host

See Web hosts.

Hosting

See Virtual Hosts

Hotlink

See hyperlinks.

HTML (Hypertext Markup Language)

HTML is the web language. H TML is a label setting that defines content, layout, and web file formats. Web browsers use HTML tags to define how text is displayed.

Learn more about HTML in our HTML tutorial

HTML Document

Files written in HTML.

HTML DOM (HTML Document Object Model)

An HTML document programming interface.

Learn more about HTML DOM in our HTML DOM tutorial

HTML Editor

A software program for editing HTML pages. W ith an HTML editor you can add elements such as list table layout, font size, and color to HTML documents like using a word processor. When editing, it displays (what you get as you see) HTML editor on the page that displays what you're editing on the page.

HTML Form

The form of user input is passed back to the server.

Learn more about HTML forms in our HTML tutorial

HTML Page

An HTML file

HTML Tags

Code to identify different parts of the document so that the web browser knows how to display it.

Learn more about HTML tagging in our HTML tutorial

HTTP (Hyper Text Transfer Protocol)

Rule standard settings for sending text files over the Internet. It requires one end of the HTTP client program and the other end of the HTTP server program.

HTTP Client

A computer program that requests services from a Web server.

HTTP Server

A computer program that provides services from a Web server.

HTTPS (Hyper Text Transfer Protocol Secure)

SSL that communicates the same as HTTP but provides secure Internet traffic. (See also SSL)

Hyperlink

A string of text linked to other pages on a web page is called HYPERLINK.

Hypermedia

Extend hyper text, graphics, and audio.

Hypertext

Hyper text is cross-linked so that the reader can read the relevant file by clicking on a highlighted word or symbol or other file text. (See also hyperlinks)

IAB (Internet Architecture Board)

One council is making standard decisions for the Internet (see also w3c).

IE (Internet Explorer)

See Internet Explorer.

IETF (Internet Engineering Task Force)

One focuses on solving technical problems on the Internet for IAB grouping.

IIS (Internet Information Server)

A Web server for Windows operating systems. Developed by Microsoft.

IMAP (Internet Message Access Protocol)

An e-mail server retrieves the e-mail standard communication protocol. IMAP is much like POP, but more advanced.

Learn more about IMAP in our TCP/IP tutorial

Indeo

A computer video codec developed by Intel Corporation.

Internet

A worldwide network of millions of computers. (See also World Wide Web)

Internet Browser

See Web browser.

Internet Explorer

Microsoft Browser. The most common browser.

Learn more about browsers in our Browser section

Internet Server

See Web servers

Intranet

Private (closed) LAN (LAN) operation within the Internet.

IP (Internet Protocol)

See TCP/IP protocol.

IP Address (Internet Protocol Address)

A unique identification number for each computer on the Internet (e.g. 197.123.22.240)

IP Number (Internet Protocol Number)

An IP address.

IP Packet

See TCP / IP package.

IRC (Internet Relay Chat)

Internet system that allows users to discuss online.

IRC Client

A computer program that enables users to connect to the IRC.

IRC Server

IRC connection service tasks dedicated to Internet servers.

ISAPI (Internet Server API)

Internet Information Server Application Programming Interface (API) (see IIS).

ISDN (Integrated Services Digital Network)

Telecommunications standards for digital transmission support data communication over regular telephone lines.

ISP (Internet Service Provider)

Provides access to the Internet and website hosting.

Java

A programming language developed by Sun. Mostly used to program Web servers and Web gadgets.

Java Applet

See the applet on the web page.

Javascript

The most popular scripting language on the Internet was developed by Netscape.

Learn more about JavaScript go to our JavaScript tutorial.

JPEG (Joint Photographic Expert Group)

Designed to facilitate the storage of compressed images in JPG and JPEG graphics formats.

JPEG and JPG

The graphics format stores compressed images.

Jscript

Microsoft version of JavaScript.

JSP (Java Server Pages)

A Java-based technology allows you to insert server-executable scripts into a Web page. Primarily used in Linux, Unix and Solaris platforms.

K

Thousand bytes 10K is also ten thousand bytes:

Kb

Thousand bytes 10K is also ten thousand bytes:

Keyword

On the web: A word used by search engines to search for relevant web information. In database terms: A word (or exponent) used to identify records in a database.

Kilobyte

1024 bytes. Often referred to as 1K, it is adjusted down to 1000 bytes.

LAN (Local Area Network)

A network between computers in a local area, such as a building, usually connected by a local cable. See WIDE.

Link

and hyperlinks are the same.

Linux

Open source computer operating system, UNIX-based. Primarily used for servers and Web servers.

Mail

On the network side: same as e-mail.

Mail Server

See e-mail server.

MB

Same as megabytes. 10MB is 10 megabytes.

Megabyte

1024 kbytes. Typically rounded down to one million bytes.

Meta Data

Data that describes other data. (meta tag).

Meta Search

The method of searching for metadata in a file.

Meta Tags

The label is inserted into the file described in the document.

Learn more about meta tags to go to our HTML tutorial.

MIDI (Musical Instrument Digital Interface)

A standard protocol for communication between a computer and a musical instrument.

Learn more about MIDI and go to our media tutorial.

MIME (Multipurpose Internet Mail Extensions)

Internet standards that define document types. Examples of MIME types: text/plain text, text/images/GIFs, HTML, images/JPGs.

Learn more about MIMI to go to our media tutorial.

MIME Types

According to the MIME file type definition.

Modem

Hardware devices connect computers to a telephone network, typically over a telephone line.

Mosaic

The first commonly used web browser. Mosaic was released in 1993 and began to popularize the Web.

MOV

A computer video codec developed by Apple. A common file extension for QuickTime multimedia files.

MP3 (MPEG-1 Audio Layer-3)

An audio compression format designed .c easy-to-download Internet access

MP3 File

The file contains audio compression MP3. The most common music tracks.

MPEG (Moving Picture Expert Group)

An audio and video codec for an ISO standard computer.

Mpg

The common file extension for MPEG files.

MS-DOS (Microsoft Disk Operating System)

A common disk-based computer operating system (operating system). Originally developed by Microsoft for IBM computers, then developed by Microsoft on the basis of the first version of Windows.

Multimedia

On the web: a presentation that combines text with pictures, videos, or sounds.

Mysql

Often used for free open source database software on the web.

NetBEUI (Net Bios Extended User Interface)

An enhanced version of NetBIOS.

NetBIOS (Network Basic Input Output System)

An application programming interface (API) on a local area network function (LAN). For DOS and Windows.

Navigate

On the web side: same as browsing.

Netscape

The company's Netscape browser. I s the most popular browser for many years. Today, lead The Internet Explorer.

Learn more about browsers in our browser section

Newsgroup

An online discussion group (part of a news server) dedicated to a topic of interest.

News Reader

A computer program that can read (and POST messages) from an Internet newsgroup.

News Server

The task of an Internet newsgroup service dedicated to an Internet server.

Node

In terms of networks connected to the Internet: A computer is most often used to describe a Web server.

Opera

From the company's Opera browser.

Learn more about browsers in our browser section

OS (Operating System)

The basic operation of the computer of the management software.

Packet

See TCP /IP package.

Page Hits

The number of times a page is visited by a user.

Page Impressions

The number of clicks is the same.

Page Views

The number of clicks is the same.

PDF (Portable Document Format)

A document file format developed by Adobe. The most commonly used text file.

Perl (Practical Extraction and Reporting Language)

The scripting language of a Web server. Most commonly used on UNIX servers.

PHP (PHP: Hypertext Preprocessor)

A technique that allows the server to be inserted into a Web page to execute scripts. Mostly used on Unix, Linux and Solaris platforms.

Learn more about PHP go to our PHP tutorial.

Ping

One method is used to check communication between two computers. A "ping" is sent to the remote computer to see if it responds.

Platform

On the network side: A computer's operating system, such as Windows, Linux, or OS X

Plug-In

An application built into another application. O n the web side: (or add) a special type of program with built-in Web browsers that process data like e-mail, sound, or movie files. (See also ActiveX)

PNG (Portable Network Graphics)

Image file storage formats, the purpose of which is to try to replace GIFs and TIFF file formats, while adding features that GIF file formats do not have

POP (Post Office Protocol)

A standard communication protocol for an e-mail server to retrieve e-mail messages. (see also IMAP).

Learn more about POP and IMAP and go to our TCP/IP tutorial.

Port

An IO (input/output) channel that identifies a computer. On the network side: An I/O channel that identifies the use of Internet applications (Web servers typically use 80 ports).

Protocol

See Communication Protocol.

PPP (Point to Point Protocol)

A communication protocol for direct connections between two computers.

Proxy Server

Internet servers are committed to improving Internet performance.

QuickTime

The format of the multimedia file created by Apple.

Learn more about QuickTime in our media tutorial

RAID (Redundant Array of Independent Disks)

A higher standard for connecting multiple disks to servers with the same speed and performance. Typically used on Web servers.

RDF (Resource Description Framework)

The language used to describe the framework for Web resource construction.

Learn more about RDF go to our RDF tutorial.

Real Audio

A common multimedia audio format created by Real Networks.

Learn real audio to go to our media tutorial

Real Video

A common multimedia video format created by Real Networks.

Learn about real videos go to our media tutorials

Redirect

On the web side: When acting, the page automatically forwards (redirects) to the user of another page.

RGB (Red Green Blue)

A combination of three primary colors that can represent the full-color spectrum.

Learn more about RGB and go to our HTML tutorial.

Robot

See Network Robot.

Router

A hardware (or software) system (route) that indicates that data is transmitted over a network on a different computer.

Schema

See XML Schema.

Script

A collection of statements written in the scripting language.

Scripting Language

On the network side: A simple programming language that can be executed through a Web browser or Web server. Refer to JavaScript and VBScript.

Scripting

Write a script.

Search Agent

It's the same as a search engine.

Search Engine

Computer programs are used to search and catalog (index) information provided by millions of Pages on Web pages. Common search engines Google and Alta Vista.

Semantic Web

The meaning of a Web site, in this sense, computer programs can understand enough data and process data.

Server

See Web servers.

Server Errors

Refer to the Web server error.

Shareware

Software that you can try for free and pay a fee to continue to be used legally.

Shockwave

Embedding multimedia content in a Web page is a format (technology) developed by Adobe.

SGML (Standard Generalized Markup Language)

International standards for marking languages. The basis of HTML and XML.

SMIL (Synchronized Multimedia Integration Language)

A multimedia presentation created in a W3C recommended language.

SMTP (Simple Mail Transfer Protocol)

A standard communication protocol between computers that send e-mail messages.

Learn more about SMTP and go to our TCP/IP tutorial.

SOAP (Simple Object Access Protocol)

A standard protocol that allows applications to communicate with each other using XML.

Learn more about SOAP go to our SOAP tutorial.

Solaris

The computer operating system from Sun.

SPAM

On the web side: Actions that send multiple unwanted messages to newsgroups or mailing lists.

Spider

See Web Spider.

Spoofing

Addressing of a web page or a false referral email. Send e-mail like a fake address.

Spyware

Computer software is hidden in a computer with the purpose of using a computer to collect information.

SQL (Structured Query Language)

An ANSI standard computer language for accessing and operating databases.

Learn more about SQL go to our SQL tutorial.

SQL Server

From Microsoft's database system. Primarily used in high-traffic sites, sites running on Windows platforms.

SSI (Server Side Include)

HTML comment types inserted into Web pages instruct the Web server to generate dynamic content. The most common use is a page that contains a standard header or footer.

SSL (Secure Socket Layer)

Software security and protection of website communication, the use of encrypted data transmission.

Static IP (address)

Static ip, corresponding to dynamic ip.

Streaming

In this way, the user can view the files being transferred while sending video and audio files over the Internet.

Streaming Format

Streaming media in file formats used on the Internet. (See Windows Media, Real Video, and QuickTime).

SVG (Scalable Vector Graphics)

A W3C-recommended language that defines graphics in XML.

Learn more about SVG go to our SVG tutorial.

Tag

On the web: written notice or access to web file commands. (See HTML tags)

TCP (Transmission Control Protocol)

See TCP/IP protocol.

TCP/IP (Transmission Control Protocol / Internet Protocol)

A collection of Internet communication protocols between two computers. The TCP protocol is a free connection between two computers, and the IP protocol is responsible for packets sent over the network.

Learn more about TCP/IP go to our TCP/IP tutorial.

TCP/IP Address

See IP address.

TCP/IP Packet

A "package" of data transmitted over a TCP/IP network. (Data sent over the Internet is divided into small "packs" from 40 to 32,000 bytes long)

Trojan Horse

A computer program that is hidden on another computer for the purpose of destroying program software or using a computer to collect information.

UDDI (Universal Description Discovery and Integration)

Platform-independent framework for describing services, exploring business, and integrating business services using the Internet.

Learn more about UDDI and go to our WSDL tutorial.

Unix

Computer operating system, developed by Bell Labs. Mostly used for servers and Web servers.

UNZIP

To unzip the compressed file. See zip.

Upload

Transfer files from your local computer to your remote computer. O n the network side: Files transferred from a Web client to a Web server. (see Download).

URI (Uniform Resource Identifier)

Resources used to determine the Internet. A URL is a type of URI.

URL (Uniform Resource Locator)

Web address. Standard solution to web files (pages) on the Internet (e.g. www.w3cschool.cn/)

USENET

A worldwide news system accessible via the Internet. (See Newsgroup)

User Agent

Same as a web browser.

VB (Visual Basic)

See Visual Basic.

VBScript

Scripting language from Microsoft. V BScript is the default scripting language in ASP. It can also be used for the program's Internet Explorer.

Learn more about VBScript and go to our VBScript tutorial.

Virus

Same as a computer virus

Visit

On the web: Access to a website. Often used to describe the activities of visitors to a Web site.

Visitor

On the network side: Visitors to a Web site. It is often used to describe a person visiting a Web site (viewing).

Visual Basic

From Microsoft's programming language

VPN (Virtual Private Network)

A private network between two remote sites over a securely encrypted virtual Internet connection (tunnel).

VRML (Virtual Reality Modeling Language)

A programming language that allows 3D effects to be added to HTML documents.

W3C (World Wide Web Consortium)

The organization is used to manage standards of www.

Learn more about W3C and go to our W3C tutorial.

WAN (Wide Area Network)

A computer that is connected to a wide network is bigger than a local area network and is usually connected by telephone line. See also LAN.

WAP (Wireless Application Protocol)

Information services on wireless terminals such as an old standard digital mobile phone.

Web Address

Same as a URL or URI. Refer to the URL.

Web Applet

A program that can be downloaded online and run on the user's computer. Most often written in Java.

Web Client

A software program that is used to access Web pages. Sometimes the same as a Web browser, but often used as a broad term.

Web Browser

A software program that displays Web pages.

Learn more about browsers in our Browser section

Web Document

A file format is disseminated online. The most common web files are tag languages such as HTML or XML formats.

Web Error

See Web server errors.

Web Form

See HTML form.

Web Host

A Web server, such as a "host" Web service where a company or individual provides space for a Web site.

Web Hosting

The action that provides the virtual host service.

Web Page

A file (usually an HTML file) intended for distribution over the Web.

Web Log

See blog.

Web Robot

See Web Spider.

Web Server

A server is a service or information that is provided to one computer to another. On the web side: A web browser that provides Web content.

Web Server Error

From the Web server, an incorrect message is displayed. The most common Web server error, "404 files not found."

Learn more about Web server error messages in our HTML tutorial

Web Services

Software components and applications running on Web servers. Servers to other computers, browsers, or individuals provide these services using standard communication protocols.

Web Site

A related website that belongs to a collection of pages of a company or individual.

Web Spider

A computer program that searches for Internet pages. C ommon web spiders are pages that are indexed like Google's search engine. Web spiders are also known as webbots or rovers.

Web Wanderer

See Web Spider.

Wildcard

A character is used instead of any character (S). The most commonly used search tool as an asterisk.

Windows 2000, Windows NT, Windows 95/98, Windows XP

Computer operating system from Microsoft.

Windows Media

Audio and video formats developed by Microsoft on the Internet. (See ASF, ASX, WMA and WMF).

Learn more about Windows Media in our media tutorial

WINZIP

A computer program that compresses and unzipped files. See zip.

Wma

Internet audio file format, developed by Microsoft. (See WMV).

Learn more about media formats in our media tutorial.

Wmv

Internet video file format, developed by Microsoft. (See also WMA).

Learn more about media formats in our media tutorial.

WML (Wireless Markup Language)

The old standard was used for wireless terminals, digital mobile phones, inherited from HTML, but based on XML, far more stringent information services than HTML.

WML Script

For WML scripting languages (programming languages).

Worm

Computer viruses can make copies of themselves and spread through the Internet to other computers.

WSDL (Web Services Description Language)

An XML-based language that describes Web services and how to access them.

Learn more about WSDL in our WSDL tutorial

WWW (World Wide Web)

A global network of computers that use the Internet to communicate Web documents. (See Internet)

WWW Server

Same as Web Server.

WYSIWYG (What You See Is What You Get)

On the Web side: To display a Web page that you are editing, display it on the Web page in exactly the same way.

Xforms

Alternative versions of HTML forms, based on XML and XHTML. D ifferent separation data definitions and data displays from HTML forms. Provides richer, more device-independent user input.

XHTML (Extensible Hypertext Markup Language)

Reformulate HTML in XML format. Developed by W3C.

Learn more about XHTML in our XHTML tutorial

Xpath

XPath is a setting for syntax rules that define parts (languages) of an XML document. XPath is an important part of the W3C XSL standard.

Learn more about XPath in our XPath tutorial

Xquery

XQuery is a setting for syntax rules that extract information (languages) from XML documents. X Query is the foundation of XPath. XQuery was developed by W3C.

Learn more about XQuery in our XQuery tutorial

XML (Extensible Markup Language)

Web files developed by W3C are a simplified version specifically designed for SGML.

Learn more about XML in our XML tutorial

XML Document

A file written by XML.

Learn more about XML in our XML tutorial

XML DOM (XML Document Object Model)

A programming interface for XML documentation developed by W3C.

Learn more about XML DOM in our XML DOM tutorial

XMLHttpRequest

Programming interfaces (objects), all modern Web browsers support JavaScript, using web browsers and behind-the-scenes (AJAX) Web servers to exchange data.

Learn more about XMLHttp in our AJAX tutorial

XML Schema

XML Schema is based on the XML language and is used to replace DTD. The XML schema file describes the structure of the XML document.

Learn more about XML Schema in our XML Schema tutorial

XSD (XML Schema Definition)

Much the same as XML Schema.

XSL (Extensible Stylesheet Language)

A set of XML languages developed by W3C, including XSLT, XSL - FO, and XPath.

Learn more about XSL in our XSL tutorial

XSL-FO (XSL Formatting Objects)

The XML language used to format XML documents. Part of W3C XSL.

Learn more about XSL-FO in our XSL-FO tutorial

XSLT (XSL Transformations)

The XML language used to convert XML documents. Part of W3C XSL.

Learn more about XSLT in our XSLT tutorial

Zip

File compression format on a computer. T ypically used to compress files. ZiP files can be compressed and unzipped using a computer program like WinZip.