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ADSL

Short for Asymmetric Digital Subscriber Line, a technology that allows more data to be sent over existing copper telephone lines. ADSL supports data rates of from 1.5 to 9 Mbps when receiving data (known as the downstream rate) and from 16 to 640 Kbps when sending data (known as the upstream rate).

AJAX

or Asynchronous JavaScript and XML is a term describing a web development technique for creating interactive web applications using a combination of: * HTML (or XHTML) and Cascading Style Sheets for presenting information* Document Object Model, JavaScript to dynamically display and interact with the information presented* XML, XSLT and the XMLHttpRequest object to interchange and manipulate data asynchronously with the web server (although AJAX applications can use other technologies

Apache

Apache is an open-source (source code is freely available and can be shared) HTTP Web server software. It is currently the most popular web server on the Net. It is usually run on Unix operating system versions like Linux or BSD, but it can also be run on Windows. It is a full-featured server with many powerful add-ons freely available.

ASP (Active Server Page)

An Active Server Page is a web page that includes program code that is processed on a Microsoft web server before the page is sent to the user. The code is typically used to access data from a database and that data is then built into the returned web page "on the fly". ASP was developed by Microsoft and is a feature of Microsoft's web server software, but the dynamically generated pages can be viewed by almost any browser.

Bits per second (BPS)

Measurement of the data transmission for a modem or network.

Bookmark

The process of saving a URL in your Web browser. Allows the user to return to a particular site or entry by making a record of it.

Chat

This rather generic term has come to describe one of the more popular activities on the Internet. Using special software, Internet users can enter chat areas or "virtual spaces," where they can communicate in real time. While most chat software only lets users talk by typing, more advanced products assign avatars, 2D or 3D characters, to each participant. These avatars may even have expressions selected by the chatters. The most advanced products not only use avatars, but also let users with sound cards speak to each other.

Client

The customer side of a client/server setup. To confuse matters, when you log on to a server, the word client can refer to you, to your computer, or to the software running on your computer. For example, to download something from an ftp site, you use ftp client software.

Client-server

Two computer systems linked by a network or modem connection where the client computer uses resources by sending requests to the server computer.

CMYK

CMYK identifies the four colors used in traditional printing presses, and stands for, respectively, cyan, magenta, yellow, and black.

CPU (central processing unit)

The CPU--a highly complex silicon chip ranging from the size of a matchbook to the wallet-sized Intel Xeon--is your computer's brain, taking requests from applications and then processing, or executing, actions, a.k.a. operations. The faster your processor, the more operations it can execute per second. The more operations you have per second, the faster things happen in your applications; thus, games play more smoothly, and spreadsheets calculate more quickly. Sometimes the term CPU is also used to describe the whole box that contains the chip (along with the motherboard, expansion cards, disk drives, power supply, and so on). Both uses are widespread, but only the first is really accurate.

Database

A collection of information stored oftentimes in a computerized format. Examples: library catalogs, search engines, financial data, etc.

Dial-up service

A common method of connecting to the Internet. A user's modem dials up to a service provider, through which an Internet connection is established.

DNS

Abbreviation for Domain Name System. A distributed client-server database system which links domain names with their numerical IP adresses.

Domain name

The name of a computer or server on the Internet in the form of a string of names or numbers, separated by periods.

Download

The transfer a file or files from a remote computer to the user's computer.

E-commerce

The conducting of business communication and transactions over networks and through computers. As most restrictively defined, electronic commerce is the buying and selling of goods and services, and the transfer of funds, through digital communications. However eCommerce also includes all inter-company and intra-company functions (such as marketing, finance, manufacturing, selling, and negotiation) that enable commerce and use electronic mail, EDI, file transfer, fax, video conferencing, workflow, or interaction with a remote computer.

E-mail

Abbreviation for electronic mail. A letter or memo sent to a person or group electronically on the Internet.

E-mail address

A user's electronic mailbox name or address, needed for linking the sender of e-mail and the recipient.

FAQ

 Abbreviation for Frequently Asked Questions. A document (often a hypertext document) containing common questions and answers for a particular website or topic.

Finger

Internet service that provides information about the users on a particular computer.

Freeware

Software that is available free of charge for personal use.

FTP (File Transfer Protocol)

An Internet tool/software utility which allows you to transfer files between two computers that are connected to the Internet. Anonymous FTP allows you to connect to remote computers and to transfer publicly available computer files or programs.

Gateway

A computer system that connects two incompatible services such as a commercial online service and the Internet.

GDI (graphics device interface)

GDI Windows is a complicated operating system that's divided into several distinct areas. The graphics display interface, or GDI, is the part that draws all the graphical objects--including common elements such as scroll bars and lines--to the screen. GDI functions are handled by a program called gdi.exe that loads automatically when you start Windows.

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