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Web Design
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Purpose of Web page and Web
site Communicate
Educate Entertain or
Conduct business
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The Internet The most popular and
fastest growing area.
What is the use ofInternet?
Using the Internet:
Do research
Get a loan Shop for services
Merchandise
Job hunt
Buy and sell stocks
Watch movies and etc.
Shop for services
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The Internet Is a worldwide collection of networks, each
is composed of a collection of smaller
networks.
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Network Is composed of several computers
connected together share resources and
data.
ISPInternet Service Provider, is a
business that has permanent Internet
connections and provides temporaryconnections to individuals and companies
free or for a fee.
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Data Travels via InternetStep1: A personal Computers request for
information travels to the ISP.
Step2: When the request leaves the ISP, it
travels over medium speed data lines,
microwave stations, and communications
satellites until it reaches the internet
backbone.
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Data Travels via Internet Internet backbonea high-speed data lines
that connect major computer systems
located around the world.
Step 3: The request travels over high-speed
data lines along the Internet backbone.
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Data Travels via InternetStep 4: The request travels over medium-
speed data lines until it reaches the
destination network server.
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World Wide Web The collection of links throughout the
Internet creates an interconnected network.
Which also referred to as the Web orWWW.
Web siteWeb containing information that
can be referenced with a link. It is acollection of linked Web pages, typicallystarts with a home page.
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World Wide Web Web pageGraphics, text, and other
information available at a Web site are
stored in a specifically formatted electronicdocument.
Home pageprovides information about
the Web sites purpose and content. Splash pageis a lead-in page often
containing multimedia.
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World Wide Web Multimediais some combination of text,
graphics, animation, audio or video.
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Accessing Information on the Web Connecting to the Web is through Public
Switch Telephone Network (PSTN)
A worldwide telephone system that handlesvoice-oriented telephone calls.
Dial-Up Lines
Is a temporary connection that uses one ormore analog telephone lines forcommunication.
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Accessing Information on the Web Dedicated Lines
Is a connection that always is established
between two communications devices Transfer rateis the speed at which a line
carries data and information. It expresses asbit per second (bps). It ranging from
thousands of bits per second called kilobitsper second(Kbps), Millions of bits persecond called Megabits per seconds (Mbps),billions of bits per second called (Gbps).
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ISDN Lines Integrated Services Digital Network
Provides faster transfer rates than dial-uptelephone lines.
A set of standards for digital transmissionof data over standard copper telephone
lines.
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Speeds of Various Connections
to the Internet
$10,000 or more44 MbpsT3
$1,000 or more1.544 MbpsT1
$30 to $70128 Kbps2.5Mbps
Cable TV(CATV)
$38 to $110128 Kbps8.45
Mbps
ADSL
$10 to $40Up to 128 KbpsISDN
Local or long-
distance rates
Up to 56 KbpsDial-up
Approximate
Mo. Cost
Transfer RatesTypes of Line
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Four Types of Dedicated Line DSLDigital Subscriber Line
another digital alternative for the small
business or home user.
Installation can provide a dial tone, so youcan use the line for both voice and data.
ADSLAsymmetric Digital Subscriber Line
Type of DSL that supports faster transfer rates whenreceiving data than when sending data.
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Four Types of Dedicated Lines ISDNIntegrated Services Digital
Network
Use for small business and home user.
Faster than transfer rates than dial-up.
Set of standard for digital transmission of
data over standard copper telephone lines.
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Four Types of Dedicated Lines Cable Television Lines
CATV lines a popular type of dedicated line that
allows the home user to connect to the Internet. T-carrier Lines
Type of digital lines that carry multiple signals over asingle communication line.
Provides extremely fast data transfer rates.
Only medium to large companies usually can affordthe investment in T-carrier line.
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Service Providers An Internet Service Provider (ISP)is a
business that has a permanent Internet
connection and provides temporaryconnections to individuals and companiesfree or for fee. POP (Point of Presence)To use a telephone
line to access the Internet, the telephonenumber you dial connects you to an access
point on the Internet.
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What do you considered when
selecting a service provider? Be sure it provides at least one local POP
telephone numberotherwise you will pay
a long distance telephone charges.
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Types of ISP A Regional ISP
Provides access to the Internet through one or
more telephone numbers local to a specificgeographic area.
A National ISP
Is a larger business that provides localtelephone numbers in most major cities andtown s nationwide.
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WEB BROWSER To view Web pages on a computer
monitor.
Called browser, a specific softwareprogram that allows for the display of Webpages.
Example: Netscape, IE, Mozilla Firefox
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WEB BROWSER One way to access a Web page is to enter
its unique address, called Uniform
Resource Locator (URL) in the browsersaddress bar or location field.
URLbegins with the protocol, Hypertext
Transfer Protocol (HTTP). HTTPis the communications standard to
transmit data on the Web.
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WEB BROWSER Domain Namewhich is the text version
of a numeric address for each computer on
the Internet, follows the protocol.
http://www.yahoo.com
http://205.216.71.230
protocol Domain name
protocol IP address
The Numericaddresscommonly
referred to asanIP address
http://www.yahoo.com/http://205.216.71.230/http://205.216.71.230/http://205.216.71.230/http://www.yahoo.com/http://www.yahoo.com/7/27/2019 MELJUN CORTES Web and Internet
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Common Domain Name and
Country Abbreviations
?org
?net?mil
?gov
?edu
?com
OrganizationOriginal Top-Level DomainAbbreviations
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Common Domain Name and
Country Abbreviations
?uk
?se
?fr
?ca
?au
CountryCountry
Abbreviations
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Alternative Web Page Viewing Devices
You can view Web Page using thefollowing:
Desktop computer monitor
Notebook computer
Handheld computer (PDA)
Web TV (for a television set)
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Search Engine Software programs that find Web sites and
Web pages.
How do you locate Web page on particulartopics in the search engines text box ?
keyword
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Portal Are Web sites that offer not only search
services but also e-mail, chat rooms, news
and sports, and maps. Examples:
Excite
Yahoo
Alta Vista
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IMPACT OF THE INTERNETAND THE WEB
Communication
Education
Entertainment
Business
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TYPES OF WEB SITES Personal
Allows you to advertise your employment
credentials, meet new friends, or share acommon interest or hobby with fellowenthusiasts.
Organization / Topical
Create an organization Web site to promotemember accomplishments or to encouragesupport and participation.
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TYPES OF WEB SITES Commercial
The goal is to promote and sell a product(s)
or service(s). A larger organization or corporation
frequently creates an intranet. (PN)