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Chapter 9: Online Communication
Computing Fundamentals
Chapter 9: Online Communication
Learning Objectives:
• Understand the channels available for Internet
communications
• Recognize the features of the different communication
types
• Choose the correct communication medium for a
particular situation
• Understand appropriate etiquette for online
communication
• Understand the basic features of email programs and
how to use them
Computing Fundamentals
Internet Communication Types
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Email
Instant messaging
Social networking
Blogs and microblogs
Newsgroups
Forums
Voice over IP
Video chat/videoconferencing
Computing Fundamentals
Emails
• Email (electronic mail): A computer-based system for
exchanging messages through mail servers.
• Store-and-forward: A message delivery system in which
messages are forwarded between servers and then
stored on those servers until they are picked up.
• Mail server: an online server that sends and/or
receives email messages on behalf of the email
addresses it supports.
• Mail client: Software installed on a computer that is
used to compose and manage emails.
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How Email Delivery Works
Computing Fundamentals
Email Account Types
• HTTP email account (Web-based): email account
designed to be used with a web interface, and uses
web technology for email management.
 HTTP for both incoming and outgoing mail
 Examples: Google, Outlook, Yahoo!
• Usually for free an supported by advertising.
• On the other hand, a mail client is customarily used for
most email accounts that someone pays for, either
directly or indirectly.
Computing Fundamentals
Mail kinds used with clients
• Post Office Protocol (POP3)
• Store-and-forward protocol.
• It holds the messages until they are picked up, but it
doesn’t maintain any direct communication with the email
client.
• Internet Mail Access Protocol (IMAP)
• It continues to hold the messages even after they are
picked up.
• Anything done in the email client is reflected on the server
• Both POP3 and IMAP are incoming (receiving) mail
standards.
• Simple Mail Transfer Protocol (SMTP) is used for outgoing
mail.
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Push vs Pull Technology
• Push Technology: A technology that sends
information to a recipient without the recipient
asking for it each time.
• Pull Technology A technology that sends
information to a recipient only when the recipient
requests it.
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Messaging
• Instant Messaging (IM): Sending and receiving short
text messages in real-time over the Internet
• Example: Yahoo! IM, WhatsApp, Telegram.
• Works on phones, but only with the right app installed
• Short Message Service (SMS)
• Known as text Messages, but currently support
Multimedia (MMS)
• Works primarily on cell phones.
• User may be charged per message on certain plans
• The differentiation between SMS and IM messages can get
blurry because services are available that can cross the
platforms.
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Chat rooms
• Public chat, multiple people at
once
• May be web-based or
application-based
• Internet Relay Chat (IRC)
accessible through IRC client
software and provides access
to huge number of people
discussing a particular subject.
• Channel An individual chat
room on a chat server such
as IRC.
Computing Fundamentals
Social Networking
• Umbrella term for sites such as Facebook, Twitter,
LinkedIn, and Google+, etc.…
• User creates a profile and posts status updates,
writings, and photos.
• Some services use tags, or hashtags (#) which are
searchable labels that can be added to posted content
allow other people to
find like-minded users
• Some social network are specialized (Instagram for
photos, Vine for video, Reddit for news, YouTube for
video-sharing)
Computing Fundamentals
Computing Fundamentals
Blogs and Microblogs
• Blog: A web page containing personal experiences and
opinions, with posts listed most-recent-first
• Blog Platform: A web server that hosts the blogs of
individuals, either free or for a small fee. Examples:
WordPress, Typepad, and Blogger
• Microblog: A service that allows the posting of short
messages.
• A status update service such as Twitter, limited to a very
few characters per post.
• Unlike email, microblogs can be seen by anyone and can
be commented on by anyone
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Wiki
• An online database of information that is
collaboratively edited by the public
Computing Fundamentals
Newsgroups
• Newsgroups predate the web, forerunners of webbased forums that are popular today
• Usenet is a large global distributed discussion group network
• People use a newsreader application to read Usenet
articles, or an email client that supports newsgroups
• Newsreader Software that organizes incoming
messages from newsgroups and allows users to read
and respond to them
• NNTP (network news transport protocol) transports
news articles between news servers and clients reading
and posting articles
Computing Fundamentals
Forums
• Forum A web-based discussion and advice- sharing
site.
• A feature-rich type of newsgroup
• Users register on the web site so that their posts will be
identifiable
• Forum thread A post on a forum along with all the
comments to it.
• Many companies have tech support forums for
their products.
Computing Fundamentals
Forums
Computing Fundamentals
VoIP
• Voice over IP (VoIP) is used to make voice calls via
the Internet
• Turns the voice message into data packets and sends
them as if they were other Internet data
• IP, short for Internet protocol, is used to identify
individual devices that are connected to the
Internet and to route calls between them.
• Skype and Truphone are popular VoIP apps
• Some IM clients also allow you to make voice calls
• Apps like Skype and Facetime also allow video chat
Computing Fundamentals
Videoconferencing
• Videoconferencing is feature-rich, group video
chat
• Can include computer application sharing, voice,
text chatting, and document collaboration
• Videoconferencing uses
the same underlying
protocols as VoIP uses,
but it requires much
more bandwidth.
Computing Fundamentals
Personal vs. Professional
Communication
• Professional communication tips
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Address them formally
Use polite language
Avoid abbreviations
Avoid jargon and slang
Don’t use emoticons :’( or Emoji
Proofread
• Personal communication tips
• Don’t make inappropriate jokes
• Talk voice or face-to-face about important or difficult issues
• Avoid discriminatory language
Computing Fundamentals
Verbal vs. Written Communication
• With whom am I communicating?
• What is the context or subject?
• Am I likely to need a record of the communication?
• Is the speed of communication important?
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Choosing an Online Method of
Communication
• Email
• Used when a quick response is not essential
• Good for formal messages
• Provides a permanent records
• Instant messaging
• Quick answers, conveying short messages quickly
• Social networking (personal)
• Useful for informing friends what is happening in your
life
• Good for posting photos and videos of recent events
you’ve been involved in
Computing Fundamentals
Choosing an Online Method of
Communication
• Social networking (business)
• Increasingly used for advertising
• Many social networking sites are dedicated to matching
job-seekers with employers
• Blogs
• Expressing your personal opinions and providing updates
about yourself
• Microblogs
• Very short summary updates you want existing followers to
see
• Forums
• Discussing topics of shared interest
• Communicating as part of a community
Computing Fundamentals
Choosing an Online Method of
Communication
• VoIP calls
• Chatting with friends or business associates
• Keeping in touch with families
• Required a reliable high-speed web connection
• Videoconferencing
• Appropriate mainly for the workplace or schools
• Allows groups of people to interact visually
Computing Fundamentals
Key Terms
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archive
attachment
automatic reply
Bcc
blacklist
blog
blog platform
Cc
channel
chat room
Contacts
email
Facebook
FaceTime
forum
forum thread
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Forward
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HTTP email account
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IMAP account
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Instagram
instant messaging (IM) •
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Internet Mail Access
Protocol (IMAP)
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Internet Relay Chat (IRC) •
mail client
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mail server
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microblog
newsgroup
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newsreader
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out-of-office message
POP account
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post
Post Office Protocol
(POP)
pull technology
push technology
reading pane
Reddit
Reply
Reply All
search engine
optimization (SEO)
Short Message Service
(SMS)
signature
Simple Mail Transfer
Protocol (SMTP)
Skype
Computing Fundamentals
Key Terms, continued
• social network
• spam
• store-and-forward
• strong password
• tag
• texting
• Twitter
• Usenet
• videoconferencing
• Vine
• Voice over Internet
Protocol (VoIP)
• whitelist
• wiki
• YouTube
Computing Fundamentals
Summary
• 1 . Name four online communication options
available for talking with a friend who lives in
• another city.
• 2 . Give two examples of situations where email
should be used to communicate rather than
• texting or instant messaging.
• 3 . Name two video chat clients.
• 4 . Explain the purpose of an email signature.
• 5 . What are the advantages of archiving your
email?