An interconnected system of networks that connects computers around the world via the TCP/IP protocol.
World Wide Web
A system of extensively interlinked hypertext documents: a branch of the Internet.
A server process running at a website which sends out web pages in response to HTTP requests from remote browsers.
A computer containing data or programs that another computer can access by means of a network or modem.
A set of interconnected webpages, usually including a homepage, generally located on the same server, and prepared and maintained as a collection of information by a person, group, or organization.
A document on the World Wide Web, consisting of an HTML file and any related files for scripts and graphics, and often hyperlinked to other documents on the Web.
A program used to view HTML documents.
A Web-based audio broadcast via an RSS feed, accessed by subscription over the Internet.
An area of computer memory devoted to the high-speed retrieval of frequently used or requested data.
HyperText Markup Language: A markup language used to structure text and multimedia documents and to set up hypertext links between documents, used extensively on the World Wide Web.
A reformulation of HTML 4.01 in XML. Being XML means that XHTML can be viewed, edited, and validated with standard XML tools. At the same time, it operates as well as or better than HTML 4 in existing HTML 4 conforming user agents. The most important change is that all elements must be terminated, either with a closing tag or using the shorthand.
Short for extensible markup language. A version of SGML that allows one to design a customized markup language, used to allow for the easy interchange of documents and data on the World Wide Web or between software components.
Internet Protocol Address: The numerical sequence that serves as an identifier for an Internet server. An IP address appears as a series of four groups of numbers separated by dots. The first group is a number between 1 and 255 and the other groups are a number between 0 and 255, such as 18.104.22.168. Every server has its own unique address.
Uniform Resource Locater: a protocol for specifying addresses on the Internet. Also, an Internet address (for example, http://www.hmco.com/trade/), usually consisting of the access protocol (http), the domain name (www.hmco.com), and optionally the path to a file or resource residing on that server (trade).
A series of alphanumeric strings separated by periods, such as www.hmco.com, that is an address of a computer network connection and that identifies the owner of the address.
Hypertext Transfer Protocol: A protocol for transferring hypertext documents, the standard protocol for the World Wide Web.
File Transfer Protocol: A software protocol for exchanging information between computers over a network.
Internet Service Provider: A company that furnishes corporations and individual consumers with various services, mainly access to the Internet.
IPP (or IPPP)
An IPPP (Internet presence provider and promoter) is a company that helps an enterprise create a Web site, arrange for hosting (housing, maintaining, and providing Internet access) for the Web site, and promote an audience for it. Many Internet service providers (ISPs) are also IPPPs, but some ISPs simply offer users access to the Internet.
A device for transmitting usually digital data over telephone wires by modulating the data into an audio signal to send it and demodulating an audio signal into data to receive it.
A type of modem that allows people to access the Internet via their cable television service.
A type of networking technology for local area networks; coaxial cable carries radio frequency signals between computers at a rate of 10 megabits per second.
Any system or device, as a cellular phone, for transmitting messages or signals by electromagnetic waves.
Cascading Style Sheets: An extension to HTML to allow styles, e.g. color, font, size to be specified for certain elements of a hypertext document. Style information can be included in-line in the HTML file or in a separate CSS file (which can then be easily shared by multiple HTML files). Multiple levels of CSS can be used to allow selective overriding of styles.
A shared online journal where people can post diary entries about their personal experiences and hobbies.
An MPEG standard used especially for digitally transmitting music over the Internet.
A standard algorithm for the compression of digital images, making it easier to store and transmit them.
Graphics interchange format: A service mark used for a raster-based format for storing files of color graphics.
Graphical user interface: A software interface designed to standardize and simplify the use of computer programs, as by using a mouse to manipulate text and images on a display screen featuring icons, windows, and menus.
Hypertext Preprocessor: A reflective programming language originally designed for producing dynamic Web pages.