| A | B |
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| Information Technology | The management and processing of information using computers and computer networks. |
| Web Site Designer | An individual responsible for the organization and appearance of a Web site. |
| Web Application Developer | An individual who develops primarily server-side Web applications. |
| Web Architech | An individual who is responsible for creating the overview plan of a Web site's development. |
| Web Site Analyst | An individual who analyzes Web site statistics to determine the site's effectiveness. |
| Dead Link | A hyperlink that, when clicked, sends a Web site visitor to a page or resource that does not exist on the server. |
| Web Site Manager | An individual who manages a Web development team. |
| Database Administrator | An individual responsible for the maintenance and security of an organization's database resources and data. |
| Server Administrator | An individual responsible for managing and maintaining network server. |
| Network Engineer | An individual responsible for managing and maintaining a network infrastructure. |
| Security Manager | An individual responsible for managing the security measures used to protect electronic data. |
| Security Analyst/Consultant | An individual responsible for examining an organization's security requirements and determining the necessary infrastructure. |
| PC Repair Technician | An individual responsible for installing, modifying and repairing personal computer (PC) hardware components. |
| Help Desk Technician | An individual responsible for diagnosing and resolving user's technical hardware and software problems. |
| Network | A group of two or more computers connected together so they can communicate with one another. |
| Node | Any entity on a network that can be managed, such as a repeater, router, gateway or firewall. |
| Host | A computer or other addressable device attached to a network. |
| Client | An individual computer connected to a network. Also a system or application that requests a service from another computer (the server), and is used to access files or documents (such as a Web browser or user agent). |
| Server | A computer in a network that manages the network resources and provides information to clients. |
| Local Area Network (LAN) | A group of computers connected together within a confined geographical area. |
| Wide Area Network (WAN) | A group of computers connected over an expansive geographical area so their users can share files and services. |
| Internet | A worldwide network of interconnected networks. |
| Advanced Research Projects Agency (ARPA) | A U.S. Department of Defense agency that created the first global computer network. |
| National Science Foundation (NSF) | An independent agency of teh U.S. government that promotes the advancement of science and engineering. |
| Backbone | The highest level in the computer network hierarchy, to which smaller networks typically connect. |
| Gateway | A node on a network that serves as a portal to other networks. |
| World Wide Web (WWW) | A set of software programs that enables users to access resources on the Internet via hypertext documents. |
| Hypertext Link | Highlighted or underlined text in a Web page that, when clicked, links the user to another location or Web page. |
| Web Page | An HTML document containing one or more elements that can be linked to or from other HTML pages. |
| Web Site | A World Wide Web server and its content, includes multiple Web pages. |
| Web Browser | A software application that enables users to access and view Web pages on the Internet |
| TCP/IP | A suite of protocols that turns data into blocks of information called packets, which are sent across the Internet. The standard protocol used by the Internet. |
| Packet | Data processed by protocols so it can be sent across a network. |
| Router | A device that routes packets between networks based on network-layers address; determines the best path across a network. Also used to connect separate LANs to a form WAN. |
| Internet Service Provider (ISP) | An organization that maintains a gateway to the Internet and rents access to customers on a per-user or subscription basis. |
| Modem | Abbreviation for modulator/demodulator. An analog device that enables computers to communicate over telephone lines by translating digital data into analog signals and then back into digital form when received. |
| Integrated Services Digital Network (ISDN) | A communication standard for sending voice, video or data over digital telephone lines. |
| Channel | The cable or signal between two network nodes that enables data transmissions. |
| Bandwidth | The amount of information, sometimes called traffic that can be carried on a network at one time. |
| Network Interface Card | A circuit board within a computer's central processing unit that serves as an interface enabling the computer to connect to the network. |
| Wireless Access Point | A device that enables wireless systems to communicate with each, provided that they are on the same network. |
| Standard | A definition of format that has been approved by a recognized standards organization. |
| Digital Subscriber Line (DSL) | A high-speed direct Internet connection that uses all-digital networks. |
| xDSL | Collectively, the variations of DSL. |
| Internet Protocol (IP) | The data transmission standard for the Internet. |
| Hexadecimal | A base-16 number system that allows large numbers to be displayed by fewer characters than is the number were displayed in the regular base-10 system. |
| Point-to-Point Protocol (PPP) | A protocol that allows a computer to connect to the Internet over phone lines. |
| Point-to-Point Over Ethernet (PPPoE) | A protocol that implements PPP over Ethernet to connect an entire network to the Internet. |
| Hypertext Transfer Protocol (HTTP) | The protocol for transporting HTML documents across the Internet. |
| File Transfer Protocol (FTP) | An Internet protocol used to transfer files between computers. |
| Simple Mail Transfer Protocol (SMTP) | The Internet standard for transferring e-mail messages from one computer to another. |
| Post Office Protocol (POP) | A protocol that resides in on an incoming mail server. |
| Internet Message Access Protocol (IMAP) | A protocol that resides on an incoming mail server. Allows sharing of mailboxes and multiple mail server access. |
| Usenet | A collection of thousands of Internet computers, newsgroups, and newsgroup members using Network News Transfer Protocol (NNTP) to exchange information. |
| Newsgroup | A subject or other topical interest group whose members exchange ideas and opinions. |
| Network News Transfer Protocol (NNTP) | The Internet protocol used by news servers that enables the exchange of Usenet articles. |
| Domain Name System (DNS) | A system that maps uniquely hierarchical names to specific Internet addresses. |
| Fully Qualfied Domain Name (FQDN) | The complete domain name of an Internet computer. |
| Root-Level Server | A server at the highest level of the Domain Name System. |
| Top-Level Server | The group into which a domain is categorized, by common topic. |
| Domain Name Server | A server that resolves domain names into IP addresses. |
| Virual Domain | A hosting service that allows a company to host its domain name on a third-party ISP server. |
| Shared Domain | A hosting service that allows multiple entities to share portions of the same domain name. |
