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Key Terms
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Bandwidth  The amount of data that can be transmitted through a communication network.
Broadband  Refers to high bandwidth that transmits 1.5 Mps over fiber optic cables.
Bulletin board system (BBS)  A computer that serves as a center for exchange of information for various interest groups.
Cable modem  A device that lets the individual access the Internet via television cable connection.
Chat room  A real-time Internet discussion on some topic.
Digital Subscriber Line (DSL)  A digital technology that offers high-speed transmission over standard copper telephone wiring.
Electronic mail, e-mail  A system of transmitting messages over a communication network via the computer. Pine is an e-mail service most commonly used at universities, and Eudora Lite is a mail application used most often by the general public.
Gopher  A program that lets the user browse the Internet using menus.
Internet  A system of worldwide networks that enable the user to send electronic mail, conduct research, chat, and participate in newsgroups.
Internet relay chat (IRC)  A real-time Internet service that allows you to do conferencing all over the world.
Local area network (LAN)  A network that provides communication within a local area, usually within 200 or 300 feet, as found in office buildings.
Modem  Short for MOdulator/DEModulator, a device that lets two computers communicate with each other via telephone lines.
Netiquette  The etiquette used in cyberspace.
Network  Computers that share storage devices, peripherals, and applications. A network can be connected by telephone lines, satellites, or cables.
Newsgroups  Similar to public bulletin boards where you can read messages that others have written and contribute to the discussion.
Ring network  A group of computers that communicate with each other in a ring, without a file server.
Star network  A communications network in which all the computers are connected to a file server or host computer.
Telecommunication  The electronic transmission of information, including data, television pictures, sound, and facsimiles.
Usenet  A leading network system of bulletin boards that services more than 1,500 newsgroups.
Wide area network (WAN)  A network that uses long-distance communication or satellites to connect computers over greater distances than a local area network does.
World Wide Web (WWW)  An Internet service that lets you navigate the Internet using hypertext documents.







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