8 1 advanced communication tools using chat, virtual worlds, and newsgroups new perspectives on the...
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ADVANCED COMMUNICATION TOOLSUsing Chat, Virtual Worlds, and
Newsgroups
New Perspectives on
THE INTERNET
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Objectives
• Learn about and use Internet chat facilities
• Explore Web sites that let you create your own chat rooms and virtual worlds
• Explore virtual worlds that offer entertainment and learning opportunities
• Use the Web to find useful information in Usenet newsgroups
• Reply to and post original articles to Usenet newsgroups
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What Is Chat?
• Chat is a general term for real-time communication on the Internet or Web.
• Private chat – occurs between two individuals.
• Public chat – group chat area.
• Lurking – the practice of reading messages and not contributing to the discussion.
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What Is Chat?
• Chat rooms – Web chat sites that use the browser client software interface to create combined text and graphic environments for chat participants.
• Emoticons (or smileys) are used to display humor and emotions in their messages.
• Netiquette – Internet etiquette
• Avoid flaming and spamming.
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8What Is Chat?
Figure 8-1
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Internet Relay Chat
• In 1988, developed as a multiuser program at the University of Oulu in Finland.
• IRC uses a client-server network model. IRC servers are connected through the Internet to form an IRC network.
• Original network was EFNet, which is still one of the largest IRC networks today.
• Other major IRC networks: IRCNet, Undernet, DALnet, NewNet.
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Internet Relay Chat
Figure 8-2
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Internet Relay Chat
• IRC networks organize their chats by topic. Each topic area is a channel.
• Channel heading use the pound sign (#) to indicate the chat’s topic.
• When a participant creates a new channel, he or she is responsible for managing the channel and is called the channel operator.
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Internet Relay Chat
• Participants select nicknames when they log on to an IRC server.
• Channel operator’s nickname is preceded by an “at” symbol.
• An IRC robot performs routine services on the IRC system.
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Internet Relay Chat
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Internet Chat• Other programs use the Internet for chat
communication links but do not connect to IRC servers.
• ICQ is one of the most popular Internet chat clients available.
• Created by small Israeli company in 1996 and purchased by AOL in 1998.
• It is freeware with over 117 million world-wide users.
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Internet Chat
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Instant Messenger
• AOL created its own chat software program called Instant Messenger. It is available to anyone for use on the Web.
• Use links on Yahoo!, MSN and other Web sites to locate and download an IM client.
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Instant Messenger
Figure 8-5
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Instant Messenger
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Web-Based Chat
• Web-based chat is often easier to use.
• Allows participants to include multimedia elements and hyperlinks in their messages.
• Actions or feelings are indicated by enclosing the text that describes them in asterisks.
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Web-Based Chat
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Web-Based Chat
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Web-Based Chat
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Finding Web Chat Sites
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Creating a Chat Room
Figure 8-11
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Creating a Chat Room
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Virtual Worlds
• Computer games date back to the early days of computing research.
• The creation of the Internet allowed game players to interact with each other.
• Multiuser dungeons and multiuser shared hallucinations are two types of gaming environments.
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Virtual Worlds
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Virtual Worlds
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8Virtual Worlds
Figure 8-15
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Usenet Newsgroups
• Usenet founded in 1979 at Duke University as a way of collecting information and storing that information by topic category.
• The topic categories originally were called newsgroups or forums.
• Usenet categories are also referred to as Internet discussion groups.
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Usenet Newsgroups
• Usenet was one of the first large distributed information databases in the world.
• A distributed database is stored in multiple physical locations, with portions of the database replicated in different locations.
• Newsgroups stores messages on an electronic bulletin board as articles or postings that are sorted by topic.
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Usenet Newsgroups• A series of postings on a particular issue is called a thread.
• Usenet is a network of computers called news servers.
• Periodically news servers connect to each other and compare a list of articles that each currently is storing. After this comparison, each news server obtains copies of the articles it does not have. This store-and-forward process is called obtaining a newsfeed.
• Each news server site employs a news administrator, who specifies which other news servers will be newsfeed providers and newsfeed recipients.
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Usenet Newsgroups
Figure 8-16
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Usenet Newsgroups
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Web Access to Newsgroups
• Newsfeeds use the Network News Transfer Protocol, which is part of the TCP/IP protocol.
• Newsreaders are programs designed for the sole purpose of communicating with news server computers.
• Most e-mail programs today include newsreader features.
• Tile.net maintains a comprehensive list of Usenet newsgroups in its databases.
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Web Access to Newsgroups
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Web Access to Newsgroups
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Web Access to Newsgroups
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Using a Newsreader
• Microsoft Outlook Newsreader is included as part of the Outlook Express e-mail software.
• Outlook Newsreader can be used to read, reply to, and create newsgroup articles.
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Using a Newsreader
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Using a Newsreader
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Using a Newsreader
• Netscape Mail newsreader is included with the Netscape Communicator software suite.
• Start Mail to use the newsreader.
• Use Mail to read, reply to, and create your own newsgroup articles.
• News.misc newsgroup provides a place where new users can send test messages and become familiar with using newsgroups.
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Using a Newsreader
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Using a Newsreader