- Analoga Signal: A continuous wave.
Examples:
Asynchronous Communication: Delayed communication, such as that used for newsgroups and mailing lists, where the sender and the recipients don't have to be logged in at the same time.
Attachments: A way to send formatted word processor documents, pictures, and other multimedia files via email.
Examples: Files and documents on an email.
Avatars: Graphical bodies used to represent a person in a virtual meeting place; can range from a simple cartoon sketch to an elaborate 3-D figure or an exotic abstract icon.
3G: The next generation of mobile wireless technology, which promises high-bandwidth connections that will support true multimedia, including real-time video.
Bits per second (bps): The standard unit of measure for modem speed.
Blog: Short for Web log, a personal Web page that often carries diary-like entries or political commentaries. Blogs are fast proliferating as new software allows users to create Web pages without having to learn the technical details of HTML and Web authoring.
Bloggers: People who write blogs or microblogs.
Bluetooth: A type of wireless technology that enables mobile phones, handheld computers, and PCs to communicate with each other regardless of operating system.
Bounce: The automatic return of an undeliverable email message to its sender.
Broadband Connection: An Internet connection such as DSL or cable modem that offers higher bandwidth, and therefore faster transmissionspeed, than standard modem connections.
Cable Modems: A type of broadband Internet connection that uses the same network of coaxial cables that delivers TV signals.
Chat Room: Public real-time teleconference.
Client: Computers in a network program that are not acting as dedicated servers.
Client/Server Model; For a local-area network, a hierarchical model in which one or more computers act as dedicated servers and all the remaining computers act as clients. The server fills requests from clients for data and other resources.
Cloud Computing: A type of grid computing in which resources (storage, applications, data, and more) are distributed across the Internet rather than confined to a single machine. Resources seem to be coming from "the cloud" (the Internet) rather than from a particular computer.
Communication Software: Software that enables computers to interact with each other over a phone line or other network.
Digital Signal: A stream of bits.
Dial-Up Connection: A connection to the Internet that uses a modem and standard phone lines.
Download To copy software from an online source to a local computer.
DSL (Digital Subscriber Line): A type of broadband connection to the Internet offered by phone companies.
Examples:
Electronic Commerce (e-commerce): Business transactions through electronic networks.
Ethernet: A popular networking architecture developed in 1976 at Xerox.
File Server: In a LAN, a computer used as a storehouse for software and data that are shared by several users.
Global Positioning System (GPS): A defense department system with 24 satellites that can pinpoint any location on the Earth.
Grid Computing: A form of distributed computing in which notfiles, but processing power is shared between networked computers.
Host System: A computer that provides services to multiple users.
Hot Spots: Publicly accessible wireless access points.
Instant Messaging (IM): A technology that enables users to create buddy lists, check for buddies who are logged in, and exchange typed messages and files with those who are.
Internet Telephony (IP Telephony): A combination of software and hardware technology that enables the Internet to, in effect, serve as a telephone network. Internet telephony systems can use standard telephones, computers, or both to send and receive voice messages.
Intranet A self-contained intraorganizational network that is designed using the same technology as the Internet.
Local Area Network (LAN): Multiple personal computers connected on a network.
Mailing Lists: Email discussion groups on special-interest topics. All subscribers receive messages sent to the group's mailing address.
Examples: Shortcut to a particular list of contacts in your mail.
Modem: Modulator/demodulator. A hardware device that connects a computer to a telephone line.
Narrowband Connections: Dial-up Internet connections; named because they don't offer much bandwidth when compared to other types of connections.
Netiquette: Rules of etiquette that apply to Internet communication.
Examples: Internet Communication.
Network Operating System (NOS): Server operating system software for a local-area network.
Network License: License for multiple copies or removing restrictions on software copying and use at anetwork site.
Newsgroups: Ongoing public discussions on a particular subject consisting of notes written to a central Internet site and redistributed through a worldwide newsgroup network called Usenet. You can check into and out of them whenever you want; all messages are posted on virtual bulletin boards for anyone to read anytime.
Peer-to-Peer (P2P) Computing: See peer-to-peer model.
P2P Model: See peer-to-peer model.
Phishing: The use of a deceptive email message or Web site to lure a person into divulging credit card numbers or other sensitive information.
Protocol: A set of rules for the exchange of data between a terminal and a computer or between two computers.
Real-Time Communication: Internet communication that enables you to communicate with other users who are logged on at the same time.
Routers: Programs or devices that decide how to route Internet transmissions.
Satellite Internet Connections: A broadband technology available through many of the same satellite dishes that provide television channels to viewers. For many rural homes and businesses, satellite Internet connections provide the only high-speed Internet access options available.
Site License: License for multiple copies or removing restrictions on software copying and use at a network site.
Social Networking: A term used to describe Web sites that make it easy for members to connect with friends, meet people with common in terests, and create online communities. These sites often rely on email, instant messages, chat rooms, Web forums, blogs, and other network communication technologies.
Examples: Facebook, Twitter, Flicker, etc
Spam: Internet junk mail.
TCP/IP (Transmission Control ProtocolInternet Protocol): Protocols developed as an experiment in internet working, now the language of the Internet, allowing cross-network communication for almost every type of computer and network.
Infrastructure: Information technology's basic framework, comprising all the organization's information systems hardware, software, and telecommunications equipment; the information system department's staff and other personnel; and the organizational structure and procedures that affect accessing, processing, and using information in the company.
Terminal Emulation Software: Software that allows a PC to act as a dumb terminal an input/output device that enables the user to send commands to and view information on the host computer.
Text Messaging: A popular form of communication among mobile phone users that relies on SMS technology.
Upload: To post software or documents to an online source so they're available for others.
Video Teleconference: Face-to-face communication over long distances using video and computer technology.
Voice Mail: A telephone-based messaging system with many of the features of an email system.
Virtual Private Network (VPN): A network that uses encryption software to create secure "tunnels" through the public Internet or be tween intranets; a method an organization can use to set up an extranet.
Webmail: Web-based e-mail.
Web Forum: Functionally similar to a newsgroup, but it's built on a Web application and is accessed through a Web browser.
Wide Area Network (WAN): A network that extends over a long distance. Each network site is a node on the network.
Wi-Fi: A popular wireless LAN technology that allows multiple computers to connect to a LAN through a base station up to 150 feet away. Often referred to as 802.11b.
Wiki: A Web site that lets anyone with access to a Web browser to modify its pages. The best-known example is Wikipedia.
Examples:Wiki
WiMax: A wireless alternative to cable or DSL service.
Wireless Access Point (WAP): A communication device, typically connected to a wired network, that is used to create a wireless network.
Wireless Network: A network in which a node has a tiny radio or infrared transmitter connected to its network port so it can send and receive data through the air rather than through cables.
Sunday, March 4, 2012
chapter 8
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