misy160 ch2
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internet
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worldwide collection of networks that link millions of ppl
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world wide web and email
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2 of more widely accessed internet services
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Pentagons ARPA
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agency of US dept of defense that started a networking program that internet has roots in
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ARPANET
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network that became functional in 1969, linking scientific and academic researchers across US
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world wide web consortium (W3C)
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oversees research related to internet
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fixed wireless internet connections
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are high speed and use radio signals and an antenna to communicate with tower
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dial up connection
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slower speed technology and cheaper way for users to connect to internet
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internet traffic
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until 1995, NSFnet handled bulk of these comm activities
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dial up access
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takes place when modem in comp uses standard telephone line to connect to internet
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cable modem
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allows access to high speed internet services through cable TV network
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fixed-wireless
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high speed internet connections use antenna on house of business to comm with tower locations via radio signals
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satellite modem
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communicates with satelite dish to provide high speed internet connections via satellite
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Wi-Fi internet service
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can be DSL or cable, send signals to a comm device thats connected to high speed internet service, most home users set them up... NOT dial up access
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satellite internet service
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is a high speed internet service
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W3C
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sets standards and guidelines for many areas of internet
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DSL
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technology that provides high speed internet connection using regular copper telephone lines
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access provider
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business that provides individuals and companies access to internet for free or fee
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periods
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what components of a domain name are separated by
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web
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consists of worldwide collection of electronic documents
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webpage
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each electric document on web with text, graphic, audio, video
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website
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collection of related web pages and associated items such as documents and pics stored on web server
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browser
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app software allows users to access and view webpages
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microbrowser
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special type of browser that internet enabled devices aka smartphones use thats designed for small screens and limited computing power
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search engine
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program that finds websites and web pages
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keywords
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words or phrases you put in search engine text box to find things
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hits
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resulted list aka web pages names that contain search text
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spider
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program used to build and maintain lists of words found on websites
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portal
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website that offers variety of internet services from single convenient location
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thread
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allows users to publish short messages, usually 100-200 characters for others to read
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multimedia
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any app that combines text w/ graphics, animation, audio, vid
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graphic
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digital representation of nontext info such as drawing, chart or photo
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thumbnail
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small version of larger graphic on web
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audio
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includes music, speech or any other sound
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content aggregators
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what podcasters register their podcasts with
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MP3 format
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reduces an audio file to 1/10th of original size while preserving much of the original quality of sound
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streaming
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process of transferring data in continuous and even flow which allows users to access file while its transmitting
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player
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special software needed to listen to an audio file on a comp
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podcast
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recorded audio, usually MP3, store on website that can be downloaded to a comp or portable digital audio player such as ipod
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VR
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use of comps to simulate real or imagined enviro that appears as 3D space
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moving pictures experts group (MPEG)
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defines popular video compression standard
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video
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consists of full-motion images that are played back at various speeds
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plug-in
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program that extends capability of browser
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web publishing
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development and maintenace of web pages
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e-commerce
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business transaction that occurs over electronic network such as Internet
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electronic storefront
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where customer visits online business, contains product descriptions, graphics, and shopping cart
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shopping cart
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allows customer visiting an electronic storefront to collect purchases
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consumer-to-consumer (C2C) e commerce
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occurs when one consumers wells directly to another consumer, such as online auction
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business-to-business (B2B) e commerce
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where most ecommerce actually take place between businesses
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e-mail
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transmission of messages and files via comp network, today is primary comm method for personal and business use
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e-mail program
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used to create, send, recieve, forward, store, print and delete email messages
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email address
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combo of username and domain name that IDs user so they can recieve internet email
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user name
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unique combo of characters (letters/#s) to ID specific user
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address book
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list of names and email addresses most email programs allow users to create
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SMTP (simple mail transfer protocol)
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comm technology used by some outgoing mail servers
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POP3
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latest version of communications technology used by some incoming mail servers
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mailing list
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group of email names and addreses given a single name
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virus
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comp program that can damage files and operating system
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IM
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real-time internet comm service that notifies users when one or more ppl are online and allows them to exchange message or files or join private chatroom
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real time
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ppl who are conversing on comp are online at same time
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instant messaging
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both parties must be online at same time, reciever of message must be willing to accept messages
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chat
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real time typed convo that takes place on comp
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chat room
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location on an internet server that permits users to chat with each other
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chat client
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user connects through this program to start chat session
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VoIP other name
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internet telephony
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VoIP
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enables users to speak to other users over internet
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uploading
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process of transferring docs, graphics and other objects from comp to server on internet
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news server
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computer that stores and distributes newsgroup messages
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thread
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consists of original article and all subsequent related replies in newsgroup
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articles
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previously entered messages that newsreader enables users to access newsgroup to read
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message board
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popular web based type of discussion group that doesnt require a newsreader
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FTP sites
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can be anonymous, anyone can transfer some of not all available files
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FTP
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internet standard that permits file uploading and downloading with other comps on internet
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FTP server
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comp that allows users to upload and/or download files using FTP
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newsgroup
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online area where users have written discussions about particular subject
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spoiler
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message that reveals solution to game or ending to movie or program
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Netiquette
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code of acceptable behaviors users should follow while on internet, conduct expected of individuals while online
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spam
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unsolicited email messages or newsgroup article sent to many recipients or newsgroups at once
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emoticons
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:) :( to express emotion in email or newsgroup article
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according to netiquette, internet users should assume
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the use of all capital letters is equivalent of shouting
