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Study Guide: Ccomputer Network Concepts

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Glossary

Bridge A combination of hardware and software that recognizes the messages on a network and passes on those addressed to nodes in other networks.
Browser Software on the user’s computer that allows the user to access the Internet via the service provider, using a graphical interface.
Data communications systems Computer systems that transmit data over communications lines such as telephone lines or cables.
Download files Retrieve from another computer and store them.
E-mail The ability to send messages directly from one computer to another.
File Transfer Protocol (FTP) A standard way to transfer copies of files on the Internet.
Host computer The mainframe computer in a WAN.
Hub A device that repeats signals and connects a group of computers to a network.
Internet A rapidly growing web of networks from around the world -- simply, a network of networks.
Internet Service Provider (ISP) Provides the server computer and the software required for you to connect to the Internet.
Listserv Widely used automatic mailing manager.
Local Area Network (LAN) A network of computers that share hardware, software, and data in small geographic area.
Modem A device that converts a digital signal to an analog signal and vice versa.
Newsgroups An informal network of computers that allows the posting and reading of messages in newsgroups that focuses on specific topics.
Plug-ins Software that enhances the value of a browser by increasing its features.
Router A special computer that directs communications traffic when several networks are connected together.
Uniform Resource Locator (URL) A unique address on the WWW.
Web pages Documents that contain text, graphics, sound, and/or video and have built-in connections called hyperlinks.
Web site A related collection of Web pages.
Wide Area Network (WAN) A network of geographically distant computers and terminals.
World Wide Web (WWW) The largest and most popular part of the Internet; it is the graphical part of the Internet.

 

 

 

 

 

 

 

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