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p. 2. 2
Chapter 2 Objectives
Discuss how the Internet works
Understand ways to access theInternet
Identify a URL
Know how to search forinformation on the Web
Describe the types of Webpages
Define Webcasting
Describe the uses of electroniccommerce (e-commerce)
Identify the tools required forWeb publishing
Explain how e-mail, FTP,newsgroups and message
boards, mailing lists, chat roomsand instant messaging work
Identify the rules of netiquetteRecognize how Web pages use
graphics, animation,audio,
video, and virtual reality
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message board
instant messaging
file transfer
e-
Web
The Internet
What are some of the services found onthe Internet?
p. 2.3 Fig. 2-1
chat
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History of the Internet
p. 2.3
Goal:Tofunction even ifpart of the network
were disabled or
destroyed
Became
functional
in
September1969
Goal:
To allow scientists at
different locations to
share information
and work togetheron military and
scientific projects
How did the Internet originate?
ARPANET
Networking project
by Pentagons
Advanced Research
Projects Agency(ARPA)
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History of the Internet
What is a host node?
Also called a hub
Any computer that
directly connects to a
network Often stores and
transfers data and
messages
Provides networkconnections for other
computers
Four original nodes
on ARPANETp. 2.4
University ofCalifornia at
Los Angeles
University of
California at
Santa Barbara
University of
Utah
Stanford
Research
Institute
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Today
More than 100 million host nodes
History of the Internet
How has this network grown?
p. 2.4
1984
More than 1,000 host nodes
1969
Four host nodes
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History of the Internet
What is NSFnet?
p. 2.4
The National Science Foundations network
Five supercomputer centers
Connected to ARPANET in 1986
NSFnet ARPANET
The Internet
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Government
Cable
companies
Satellite
companies
Telephone
companies
History of the Internet
Who provides the structure for the Internet today?
p. 2.4
Networks from
corporations,
commercialfirms, and other
companies
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World Wide Web
Consortium (W3C)
Oversees research and
sets standards and
guidelines
Internet2 (I2)
Internet-related research
and development project
Develops and tests
advanced Internet
technologies
History of the Internet
Who controls the Internet?
The Internet is a public, cooperative, and
independent network
No single entity controls or owns the Internet
Several organizations advise and define
standards
p. 2.4
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How the Internet Works
What is an Internet Service Provider (ISP)? A business that
has a permanent
Internet connection
Providestemporary
connections to
individuals and
companies for freeor for a fee
p. 2.5
Regional ISP
Provides access to the
Internet through one or
more telephone numberslocal to a specific
geographic location
National ISP
Provides local telephone
numbers in most major cities
and towns nationwide
May also provide a toll-free
number
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How the Internet Works
What is a point of presence (POP)?
p. 2.5
An access
point on the
InternetAccessed by
dialing a
telephone
number Select a serviceprovider with at
least one local
POP telephone
number
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Wireless Service
Provider
Company that
provides wirelessInternet access
Online Service
Provider(OSP)
Supplies Internet
access
Has many members-
only features that
offer special content
How the Internet Works
What are other service providers?
p. 2.5
Click to view Web Link
then click Service Providers
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Company on the Cutting
Edge
America Online
Worlds leading online service provider
Services include electronic
mail, software, computer
support services,
Internet access
p. 2.6
Click to view Web Link
then click AOL
Founded in 1985
by Stephen M.Case
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What are ways to access the Internet?
1
local call
long-distance call
1
2
local call
local call
long-distance calltoll-free call
1
2
3
local call
local call
local call
long-distance call toll-free call
How the Internet Works
p. 2.5 Fig. 2-2
1 Regional
Internet
Service
Providers
POP
2 National
Internet
ServiceProviders
POP
3 Online
Services
Local POPOnline
Service
(specialmembers-only
content)
4 Wireless
Internet
ServiceProvider
41
2
3
local call
local call
local call
local call
long-distance call toll-free call
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High speed connection Employees and students
Computers part of a local area network (LAN)
Connect to service provider through a high-speed
connection line leased from local telephone company
How the Internet Works
How can you connect to the Internet?
p. 2.6
Dial-up access
Home or small business
Computer , modem, regular telephone line
Dial into an ISP or OSP
Newer high-speed technologies Home and small business
Digital subscriber line (DSL)provides connections over
regular copper telephone line
Cable modem- provides connection through cabletelevision network
H h I W k
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Backbone Inner structure
of the Internet Communications
lines that carrythe heaviestamount of traffic
How the Internet Works
What are three parts of an Internet connection?
p. 2.6
Server Computer that
manages theresources on anetwork
Provides acentralized storagearea for resourcessuch as programsand data
Also called a hostcomputer
Client Computer that
can access thecontents of thestorage area onthe server
Click to view Web Link
then click Backbone
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How might data travel the Internet using atelephone line connection?
Step 1Step 1Step 2
Step 1Step 2
Step 3
Step 1Step 2
Step 3
Step 4
RegionalISP
Step 1Step 2
Step 3
Step 4
Step 5
RegionalISP
National
ISP
Step 1Step 2
Step 3
Step 4
Step 5
Step 6
RegionalISP
National
ISP
National ISP
Internet
backbone
Step 1Step 2
Step 3
Step 4
Step 5
Step 6
Step 7
RegionalISP
Local ISP
National
ISP
National ISP
Internet
backbone
How the Internet Works
p. 2.7 Fig. 2-3
Step 1Step 2
Step 3
Step 4
Step 5
Step 6
Step 7
Step 8
RegionalISP
Local ISP
National
ISP
National ISP
Internet
backbone
1: You initiate an
action to requestdata from the
Internet.
2: A modem convertsthe digital signals
from the computer
into analog signals,
which are
understood by
telephone lines.
3: Data (request)travels through
telephone lines to a
local ISP.
4: Data may passthrough one or
more routers
before reaching its
final destination.
5: The regional ISPuses lines, leased
from a telephone
company, to send
data to a national
ISP.
6: The national ISProutes data across
the country to
another national
ISP.
7: Data moves from anational ISP to a
local ISP and thento a a destination
server.
8: The serverretrieves the
requested data and
sends it back
through the
Internet backbone
to your computer.
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How the Internet Works
What is an Internet protocol (IP) address?
Number that uniquely identifies each computer ordevice connected to the Internet
Four groups of numbers, each separated by a period
Number in each group is between 0 and 255
p. 2.8 Fig. 2-4
IP address 199.95.72.10
first part
identifies
network
last partidentifies
specific
computer
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How the Internet Works
What is a domain name?
Text version of an IP address
Components are separated by periods
Each domain name represents one or more IPaddresses
p. 2.8 Fig. 2-4
IP address 199.95.72.10
Domain name www.scsite.comidentifies
top-level
domain
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How the Internet Works
What is a top-level domain (TLD) abbreviation?
Identifies the type of organization associated
with the domain
Sometimes called dot comwhen TLD is com
p. 2.8 Fig. 2-5
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Internet Corporation for Assigned
Names and Numbers (ICANN)
Group that assigns and controls TLDs
How the Internet Works
What systems control domain names?
p. 2. 8
Domain name system (DNS)
System on the Internet that stores the
domain names and their correspondingIP addresses
DNS server
Translates the domain
name into its associated IP
address
Th W ld Wid W b
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The World Wide Web
What is the World Wide Web (WWW)? Also known as the Web
A worldwide collection of electronic documents
Each document on the Web is called a Web page
Can contain text, graphics, sound, and video
Can contain built-in connections to other documents
A Web siteis a collection of related Web pages
p. 2.9
The World Wide Web
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The World Wide Web
What is a Web browser?
Also called a browser
Software program that allows you to access and
view Web pages
p. 2.9 Fig. 2-6
Two popularbrowsers forpersonalcomputers Netscape Internet
Explorer
The World Wide Web
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How can you establish a connection and start the Web
browser?
Step 1
Internet
Explorer icon
Step 1
Step 2
Step 1
Step 2
Step 3
The World Wide Web
p. 2.10 Fig. 2-7
1 Double-click anicon on the
desktop, such as
Internet Explorer,
to start your
browser.
2 If you are notconnected to the
Internet already,
your computerattempts to
establish a
connection with a
service provider.
If necessary, click
the Connect
button.
3 Connection to theInternet occurs
and a home page
displays. Shown
here is an AOL
home page. Your
home page mayvary.
The World Wide Web
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The World Wide Web
What is a home page? Starting page for a browser Provides information about the sites purpose and
content
p. 2.10
Some Websites also refer
to their
starting page
as a home
page
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The World Wide Web
What is downloading?
p. 2. 11
The process of receivinginformation, such as a Webpage, onto your computer
from a server on the Internet
Can take from a few seconds
to several minutes
You can speed up the display of pages by
turning off the graphics and displaying only
text in most Web browsers
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Microbrowser for a Web-
enabled handheld computer
Microbrowser for a
Web-enabled
cellular telephone
The World Wide Web
How do Web-enabled handheld computers
and devices access the Web? Use a special type
of browser designedfor their smallscreens
Microbrowsersoftware programthat accesses anddisplays Web pages
that contain mostlytext
Also called aminibrowser
p. 2.11 Fig. 2-8
The World Wide Web
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The World Wide Web
What is a hyperlink?
Also called a link
Built-in
connection toanother relatedWeb page or partof a a Web page
Allows you toobtain informationin a nonlinear way
p. 2.12
The World Wide Web
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The World Wide Web
How can you identify a link?
Link can be a word, phrase, or image
Text links usually are underlined or in a color
different from the rest of the document
A graphical link may change its appearance when
you point to it
p. 2.12
The shape of the pointer on
the screen changes to a
small hand with a pointing
index finger when you
position it on a link or point
to the link
Click the link to activate it
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pointer
Some linksdisplay a
different color
when you point
to them. Click
the link to
display its
associated
Web site or
Web page.
pointer
Some links are
underlined.
Click the link to
display the
associated
Web site or
Web page.
pointer
Some links are
graphicalimages. Click
the link to
display its
associated
Web site or
Web page.
The World Wide Web
p. 2.12 Fig. 2-9
How do you navigate a variety of links?
The World Wide Web
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The World Wide Web
What is surfing the Web?
Links can point to an item on the same Webpage, a different Web page at the same Web site,
or a separate Web page at a different Web site in
another city or country
p. 2.12
The activity of jumping fromone Web page to another is
surfing
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The World Wide Web
What is a Uniform Resource Locator (URL)?
Unique address for a Web page
Browser retrieves a Web page by using the URL
Also called a Web address
Type the URL into the address text box on the browser
and press the Enter key to display a Web page
p. 2.13 Fig. 2-10
http://www.nationalgeographic.com/travel/index.html
address
text box
The World Wide Web
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The World Wide Web
What are the parts of a URL?
p. 2.13 Fig. 2-10
protocol domain name path
http://www.nationalgeographic.com/travel/index.html
Click to view Web Link
then click URLs
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The World Wide Web
What is a Web server?
A computer that delivers
(stores) Web pages you request
The same Web server can store
multiple Web sites
p. 2.13 Fig. 2-10
http://www.nationalgeographic.com/travel/index.html
The World Wide Web
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The World Wide Web
What is a search engine?
A software program you can use to find Websites, Web pages and Internet files
p. 2.14
Search text
A word or phrase
entered in the search
engines text box
Also called keywords
Spider
A program that reads
pages on Web sites in
order to find Web
pages that contain the
search text
Also called a crawler
or bot
Click to view video
The World Wide Web
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The World Wide Web
What is a hit?
Any Web page name that listsas the result of a search
p. 2.14 Fig. 2-11
hit
363 hits
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The World Wide Web
What are some
widely usedsearch engines?
p. 2.15 Fig. 2-12
The World Wide Web
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The World Wide Web
What is a directory? An organized
set of topics
Used by asearch engine
to aid inlocating Websites
Each majortopic hasrelatedsubtopics
p. 2.15 Fig. 2-13
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The World Wide Web
What are the six basic types of Web pages?
p. 2.16
advocacy
Web page
informational
Web page
business/marketing
Web page
news
Web page
personal
Web pageportal
Web page
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The World Wide Web
What is an advocacy Web page?
Containscontent thatdescribes acause,
opinion,oridea
Purpose is toconvince thereader of thevalidity of thecause,opinion, oridea
p. 2.16 Fig. 2-14a
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The World Wide Web
What is a business/marketing Web page? Contains
content thatpromotes orsells
products orservices
Often allowyou topurchase
products orservicesonline
p. 2.16 Fig. 2-14b
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The World Wide Web
What is an informational Web page?
Contains
factual
information
p. 2.16 Fig. 2-14c
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The World Wide Web
What is a news Web page?
Containsnewsworthymaterial
Stories andarticles relatingto currentevents, life,money, sports,
and theweather
p. 2.17 Fig. 2-14d
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The World Wide Web
What is a portal Web page
Often called a
portal
Offers a variety
of Internetservices from a
single,
convenient
location
p. 2.17 Fig. 2-14e
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referencetools
sports and
weather
search
engine
The World Wide Web
What services are often found on a portal?
p. 2. 17
local ,national, and
worldwide
news
freepersonal
Web pages
instant
messaging
calendars
shoppingmalls andauctions
newsgroups
or messageboards
chat rooms
The World Wide Web
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The World Wide Web
What is a Web community?
A Web site that joins a specific group of
people with similar interests or relationships
Usually offer special services to facilitate
communication among members
p. 2.17
newsgroup
or messageboard e-mail online
photo
albumschat
room
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The World Wide Web
What is a wireless portal?
A portal specifically designedfor Web-enabled handheldcomputers and devices
Attempt to provide allinformation a wireless usermight require
Services include searchengines, news ,stock quotes,
weather, maps, e-mail,calendar, instant messaging,and shopping
p. 2.17
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The World Wide Web
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The World Wide Web
What is a personal Web page?
A Web pagemaintained bya privateindividual who
normally is notassociated withanyorganization
Reasons: job
hunting,sharing lifeexperience withthe world
p. 2.17 Fig. 2-14f
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virtual
reality
The World Wide Web
What is multimedia?
Any application that integrates text with
other elements
Often used for Web pages to add appeal
Multimedia Web pages often require more
time to download because they contain
large graphics and video or audio clips
p. 2.18
graphics
audioanimation video
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The World Wide Web
What is a graphic?
Also called agraphical image
A digitalrepresentation ofinformation suchas a drawing,chart, orphotograph
First media usedto enhance text-based Internet
p. 2.18 Fig. 2-15
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The World Wide Web
What are the formats for graphics files on the
Web?
p. 2.18 Fig. 2-16
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JPEG (JointPhotographic Experts
Group)
Graphical image that usescompression techniquesto reduce the file size
Smaller sizes result in
faster downloading ofWeb page
The more compressed thefile, the smaller the file,but the lower the quality
GIF (GraphicsInterchange Format)
Also uses compressiontechniques to reduce filesizes
Works best for images
with only a few distinctcolors, such as linedrawings, single-colorborders, and simplecartoons
The World Wide Web
Which two formats are most popular for the Web?
p. 2.19
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The World Wide Web
What is a thumbnail?
A small version ofa larger graphicalimage
Used becausegraphics files canbe time consumingto display
Usually click
thumbnail todisplay the full-sized image
p. 2.19 Fig. 2-17
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The World Wide Web
What is animation?
The appearance of motion
created by displaying a
series of still images in
rapid sequence
p. 2.19
Can make Web pages morevisually interesting or drawattention to importantinformation or links
Animated GIF usescomputer animation andgraphics software tocombine several imagesinto a single GIF file
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* * * * add interest with animation * * * *
The World Wide Web
What is a marquee?
Text that animates by
scrolling across the
screen
Pronounced mar-KEE
p. 2.19
* * * * add interest with animation * * * ** * * * add interest with animation * * * ** * * * add interest with animation * * * ** * * * add interest with animation * * * *
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The World Wide Web
What is audio?
Music, speech, or
any other sound
Individual sound
files that you
download to your
computer
p. 2.20
music
speech
othersound
Click icon to hear audio clip.
Press the Esc key to cancel.
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e o d de eb
What is MP3?
A popular technologythat compressesaudio
Reduces an audio fileto about one-tenth ofits original size whilepreserving the originalquality of the sound
MP3 file are easilycopied from the Web
p. 2.20
Click to view video
Controversy with respect to copyrightinfringement
The World Wide Web
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plays musicstored on CD
plays music
stored on
clik! disk
plays musicstored on CD
How can you play MP3 files?
Most currentoperating systemscontain a programcalled a player
plays audio in MP3files on yourcomputer
Portable audiodevices called MP3
players play MP3 files
stored on CD orminiature storage
media
p. 2.20 Fig. 2-18
Click to view
Web Link
then click MP3
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What is streaming audio?
Also called streamingsound
Enables you to listen tothe sound as itdownloads
Many radio and televisionstations use streamingaudio to broadcast
Two accepted standards
Windows Media Player
RealAudioacomponent ofRealPlayer
p. 2.21 Fig. 2-19
Click to view
Web Link
then click
Streaming Media
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What is video?
Consists of full-motion imagesthat are played
back at variousspeeds
Most video alsohas
accompanyingaudio
p. 2.22 Fig. 2-20
video
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What video formats are used on the Web?
p. 2.22
MPEG standard
(Moving Pictures
Experts Group) Individual video files
that you mustdownload completelybefore you can play
them on the computer
Streaming video
Allows you toview longer of live
video images ashey download toyour computer
Two widely usedstandards
RealVideoacomponent ofRealPlayer
Windows MediaPlayer
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What is a Web cam
Also called acam
A video camera
whose outputdisplays on aWeb page
Shows images
that changeregularly
p. 2.22
Web cam
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What is virtual reality (VR)? The use of computers to simulate a real or imaged
environment that appears as a three-dimensional (3D)
space
p. 2.22 Fig. 2-21
VR worlda 3-
D site thatcontainsinfinite spaceand depth
Used for games
as well asmany practicalapplications
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What is pull and push technology?
p. 2.23 Fig. 2-22
Pull
Obtaining information byrequesting it from a site
Relies on a client to
request a Web page froma server
Push
Server automaticallydownloads content to
your computer at regularintervals
ticker tape
pushed to
desktop fromMicrosoft
Investor Web
site
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What is Webcasting?
Another name for push technology
Delivers information at regular intervals without you
having to request it
Information can be viewed whether you are online or
offline
p. 2.23
ticker tape
pushed to
desktop fromMicrosoft
Investor Web
site
Electronic Commerce
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What is electronic commerce?
Also known as e-commerce
p. 2.24 Fig. 2-23
A financial
business
transactionthat occurs
over an
electronic
networksuch as the
Internet
Electronic Commerce
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What are the three types of e-commerce?
p. 2.25
Business to consumer(B-to-C or b2C)
Sale of goods to the general public
Consumer to consumer(C-to-C or C2C)
One consumer sells directly to another
Business to business
(B-to-B or B2B)
Businesses providing goods and services to
other businesses
Electronic Commerce
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What are some features of e-commerce?
Electronic storefront
The place where a customer
visits an online business
Shopping cart Allows the customer to
collect purchases
Online auction
Site where you can bid on anitem being sold by someone
else
p. 2.25
Click to view Web Link
then click e-Commerce
Technology Trailblazer
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Masayoshi Son
Helped to bring Japan to the forefront of thedigital age
Founded Softbank Corporation in 1981
p. 2.25
Click to view Web Link
then click Masayoshi Son
By 1995, Softbankcontrolled one-half of thepersonal computersoftware in Japan
A leading memberof Japans PrimeMinisters ITStrategy Council
Web Publishing
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p. 2.26 Fig. 2-24
The development andmaintenance of Web
pages
Step 1Step 1 Step 2Step 1 Step 2
Step 3
Step 1 Step 2
Step 3Step 4
Step 1 Step 2
Step 3Step 4
Step 5
1 Plan: Think about issues that
could affect the design of theWeb site.2 Analyze and Design: Sketch a
design of the Web page on
paper.3 Create: Create the Web site in
a software package such as
word processing.4 Deploy: Copy (upload) the
Web site from your hard disk
to a Web server.5 Maintain: Visit and revise your
Web site regularly to be sure it
is working and current.
What is Web Publishing?
Web Publishing
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p. 2.28
Use a current wordprocessing program
Hardware
Digital camera
Scanner
Sound card
Microphone
PC camera
Software to prepare HTML
HTML (hypertext markuplanguage)
A set of special codes that
format a file for use as a Web
page
Created with either:
Word processing package
Web page authoring
software
What is needed for creating Web page?
Also called Web page authoring
Web Publishing
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What is a plug-in?
An additional program that extends thecapability of a browser
Many plug-ins can be downloaded at no cost
from the Web
p. 2.28 Fig. 2-25
Click to view Web Link
then click Plug-ins
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Upload, or copy,
the site to the
Web server
Locate a Web
server to store your
site
Provided by many
ISPs and OSPs at no
additional cost
Provided by a Web
hosting service for a
monthly fee
How do you deploy a Web site?
p. 2.29
Click to view Web Link
then click Web Publishing
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Apply to an
official registrar
for a specific
domain name
Register site with
search engines
Submission service:a Web-based
business that helps
register your site
WebmasterIndividual responsible
for maintaining a Web
site and developing Web
pages
What else might be needed to create a Web site?
p. 2.29
Click to view Web Link
then click Submission Services
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What is e-mail?
Electronic mail
The transmission of messages and files via acomputer network
Use an e-mail program to work with messages
Messages can be simple text or include anattachment such as a graphical image or wordprocessing document
p. 2.31
create
receivestore
sendforward
delete
Click to view
Web Link
then click E-mail
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Step 1Step 1
Step 2
Step 1
Step 2
Step 3
Step 1
Step 2
Step 3Step 4
How do you
send an e-mailmessage?
p. 2.30 Fig. 2-26
Step 1
Step 2
Step 3Step 4
Step 5
1 Start an e-mail program and
point to the New Mail
Message button2 Click the New Mail
Message button to displaythe Message window
3 Enter the recipients e-mailaddress, the subject, and
the message in the Message
window
4 Click the Insert File button
to attach a JPG file
containing a picture to the
message. Locate the file on
your hard disk and click its
name. An icon for the file
displays. Click the Send
button to send the
message.
5 When Sally receives the e-
mail message, she opens
the JPG file to view the
picture.
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What is an Internet e-mail address?
A combination of a user name and a domain namethat identifies a user so he or she can receive
Internet e-mail
p. 2.31 Fig. 2-27
user name or user-ID
A unique combination of
characters that identifies you
at domain name
Identifies the mail server
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mail server
The server that contains the
mailboxes
How can you get e-mail?
Most ISPs and OSPs provide an Internet e-mailprogram and a mailbox on a mail server as astandard part of their Internet access services
Some Web sites provide e-mail services free ofcharge
p. 2.33
address book
Allows you to store a list of
names and e-mail addresses
mailbox
Storage location usually
residing on the computer
that connects you to the
Internet
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What is a POP server?
Post office protocol server
p. 2.32
When a message arrivesat the recipients mailserver, the message
transfers to a POP orPOP3 server
POP server holds an e-mail message until the
recipient retrieves it withhis other e-mail software
POP3 is the newestversion
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Step 1Step 1
Step 2
server
Step 1
Step 2
Step 3
Internetrouters
server
server
Step 1
Step 2
Step 3
Step 4
Internetrouters
server
server
POP
server
How does an
e-mailmessagetravel?
p. 2.32 Fig. 2-28
Step 1
Step 2
Step 3
Step 4
Step 5
Internetrouters
server
server
POP
server
1 Using e-mail software,
you create and send a
message.2 Your software contactssoftware on your service
providers mail server.3 Software on the mail
server determines the
best route for the data
and sends the message,
which travels alongInternet routers to the
recipients mail server.
4 The mail server transfers
the message to a POP3
server.5 When the recipient uses
e-mail software to check
for e-mail messages, themessage transfers from
the POP3 server to the
recipients computer.
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p. 2.33 Fig. 2-29
file
download
window
What is FTP?
File Transfer Protocol
An Internetstandard
allows you toupload anddownloadfines with
othercomputers onthe Internet
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What are some FTP terms?
p. 2.33
FTP server
A computer that
allows users to
upload and
download filesusing FTP
FTP siteA collection of
files that reside on
an FTP server anonymous
FTPAnyone can
transfer some, if
not all, available
files
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Usenet
The entire collection of
Internet newsgroups
What is a newsgroup?
An online area in which users conduct written
discussions about a particular subject
A user sends a message to the newsgroup
Other users in the newsgroup read and reply
to the message
p. 2.33
News server
A computer that stores
and distributes
newsgroup messages
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What is a message board?
A type of discussion group that dos not requirea news reader
p. 2.34 Fig. 2-30
Also called a
discussion board
Click to view
Web Link
then click
Message Boards
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What is a
mailing list? A group of e-mail
names andaddresses given
to a single name When a message
is sent to amailing list, everyperson on the list
receives a copy ofthe message
p. 2.34 Fig. 2-31
Subscribe or unsubscribe to mailing list to add orremove your name from the mailing list
Some are known as LISTSERVs
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What is a chat?
A real-time typedconversation thattakes place on acomputer
Real-time means
that youand thepeople with whom youare conversing areonline at the sametime
A chat room is alocation on an Internet
server that permitsusers to chat
p. 2.35 Fig. 2-32
Click to view Web Link
then click Chat Rooms
A chat client isa program onyour computerthat allows youto chat
Technology Trailblazer
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Lavonne Luquis
Journalist
Started LatinoLink,
the first general
interest Webmagazine for Latinos
Now known as
Latino.com
More that 280,000visitors each month
p. 2. Fig. 2-
Click to view Web Link
then click Lavonne Luquis
Other Internet Services
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message sent from Karen to Katy
What is instant messaging (IM)?
A real-time Internetcommunications
service
Notifies you when
one or more people
are online Allows you to
exchange messages
or files or join a
private chat with
them
p. 2.36 Fig. 2-33
Katys response to Karen
Karens message
immediately displays
on Katys computer
screen because she is
online
Click to view Web Link
then click Instant Messaging
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NetiquetteGolden Rule: Treat
others as you
would l ike them totreat you.
In e-mail groups and chat rooms:
Use emoticons to express
emotion
: ) Smile
: ( Frown
: l Indifference
:\ Undecided
:o Surprised
In e-mail groups and chat rooms:
Use abbreviations for phrases
such as
BTW by the way
FYI for your information
FWIW for what its worth
IMHO in my humble opinion
TTFN ta ta for now
TYVM thank you very much
Read the FAQ (frequently asked
questions)
Use your user name for your
personal use only
Do not assume material is
accurate or up to date
Never read someones private
In e-mail groups and chat rooms:
Keep messages brief
Proper spelling and grammar Be polite
Avoid offensive language
Do not use all capital letters which is
the equivalent of SHOUTING!
Clearly identify a spoiler
Message that reveals a solution
to a game or ending to a movie or
program
In e-mail groups and chat rooms:
Avoid sending or posting flames
Abusive or insultingmessages
Do not participate in flame wars
Exchanges of flames
In e-mail groups and chat rooms:
Avoid sending spam
Internet junk mail Unsolicited message sent to
many recipients at once
What is
netiquette? Internet
etiquette
Code of
acceptable
behaviors
users should
followwhileon the Internet
p. 2.37 Fig. 2-34
Click to view video
Summary of the Internetand World Wide Web
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and World Wide Web
The Internet
History of the Internet
How the Internet works
The World Wide Web
Electronic commerce
Web publishing
Other Internet services
Netiquette
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Chapter 2 Complete