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CSC 318
WEB APPLICATION DEVELOPMENT

Week 1 :
Introduction to Internet
THE PLAN
INTRODUCTION
What is Internet

HISTORY
ARPANET > INTERNET > WWW

APPLICATIONS
WWW, email, ftp, telnet, newsgroup, mailing list, chatroom, portals

INTRANET
Intranet vs. Internet
HOW TO HOOK UP TO THE INTERNET?
HOW TO HOOK UP TO THE INTERNET?
HOW TO HOOK UP TO THE INTERNET?
WHAT DOES INTERNET LOOK LIKE?
INTERNET PHYSICAL LAYOUT
BASIC TERM DEFINITION
INTERNET

A combination of networks connected
each other
NETWORK

a collection of computers & devices
connected together via communication
devices & media
THE INTERNET
• world’s largest network
• worldwide collection of networks

Government
offices

businesses

Educational
institutions

Links
together
millions
of:

Individuals
WHAT DOES INTERNET PROVIDES?

www

Chat rooms

E-mail

Internet
provides
services:
Newsgroups

FTP

Telnet
USES OF INTERNET

Access a wealth of info

conduct business,

(news, research & educational
material)

(online banking & investment
transactions)

entertainment &
leisure

shop for goods & services
USES OF INTERNET (CONT)

Social Networking
(fb, chatrooms, twitter)

Access other computers
& exchange files

Communication
ORIGIN OF INTERNET?
ARPANET : INTERNET HISTORY
ARPA:
(Advanced Research Projects Agency)
by Pentagon (DoD, USA)
To built a networking projects.

ARPA goals:
Allow scientists at different locations to share info & collaborate on military &

scientific projects.
Could function even if part of the network are disabled or destroyed by a

disaster.
That network, called ARPANET (September 1969)
ARPANET : INTERNET HISTORY

The Original ARPANET was a WAN

consisted of 4 main computers;
•University of California
•Stanford research Institute
•University of California at Santa Barbara
•University of Utah

1971, ARPANET had been connected to more than 30 universities, defense

departments, governments bodies and other institutions over the US.
ARPANET : INTERNET HISTORY
By 1984, ARPANET had more than 1000 individual computers

linked as a host.
In 1986, NSF (National Science Foundation) connected its

huge of 5 supercomputers centres called NSFnet, to ARPANET
This configuration of complex networks & hosts became

known as the INTERNET.
1990, commercial companies are allowed to join.
WWW –WORLD WIDE WEB
Exist in early 90’s

Consists of a worldwide collection of documents that

have built-in hyperlinks to other related documents
Allows user to navigate quickly from one document

to another
An electronic doc. on the web is call a web page.
WWW –WORLD WIDE WEB
Each web page on a web site has unique address, called Uniform

Resource Locator (URL)

URL consist of:
a protocol (Most begin with http://)
a domain name
(sometimes) the path to specific web page
PROTOCOL

PROTOCOL

PURPOSE

http

Transferring web pages

ftp

Transferring files

telnet

Remote login

news
mailto

Requesting news from a news
group
Sending e-mail

file

Local file access
DOMAIN SUFFIX

SUFFIX

USE

com

Commercial sites

edu

Educational institutions

gov

government agencies

net

Network organizations

org

Non-profit organizations
DOMAIN SUFFIX

SUFFIX

COUNTRY

my

Malaysia

sg

Singapore

ca

Canada

au

Australia

gb

Great Britain

in

India
WWW –WORLD WIDE WEB

Web Browser : software to access & view web page.
WWW –WORLD WIDE WEB

HTML :
Web page is created by using HTML (Hypertext markup language)
WWW –WORLD WIDE WEB

Web Server :
stores the web pages that comprise a web site.

Web Master :
individual who responsible for developing & maintaining web site.
WWW –WORLD WIDE WEB
E-MAIL
• Electronic Mail
• Transmission of messages & files via a computer network
• E-mail function: create, send, receive, forward, store,

print & delete message.
• E-mail address: combination of a user name

& domain name.

malik.rick@johor.uitm.edu.my
malik.rick@exxonmobil.com
FTP

File Transfer Protocol
An Internet standard that allows user to
exchange files with other computers on the

Internet
FTP server – a computer that allows user to
upload and download files using FTP
FTP sites – a collection of files including text,
graphics, audio, video and programs files.
TELNET

Program/command that enables user to
connect remote computer on the Internet

To connect – enter a user name and password
Once connected, your computer acts like
terminal directly linked to the remote computer
Example – accessing library cataloging.
NEWSGROUP

Online discussions group conducted by user in
any particular subjects but in written.
To participate, user sends message to a certain
newsgroup, then other users respond by replying
to the message.
MAILING LISTS

 A collection of e-mail addresses grouped in a
single user.
When message is sent to a mailing list, every
person in the list receives a copy of message in
their mailbox
Example: csc318@yahoogroups.com
CHAT ROOMS

 Real-time typed conversation that takes place
on a computer.
Must be online at the same time
Chat room – communication medium or channel
that permits users to join chatting.
Support text-based & also graphical
PORTALS
•A Web Site but offers a variety of internet

services from a single convenient location.
Services are:
Search Engine
Local, national, worldwide news, sports, weather
Reference e.g.. Yellow pages & maps
Shopping malls
E-mail
Chat rooms
INTRANET

INTRA (means internal) & NET (network)
INTRANET

Small version of Internet that used within an
organization.
Sometimes called an enterprise network

Use TCP/IP protocols
The Inter-network is a big network of networks.

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Week 1_intro to internet

  • 1. CSC 318 WEB APPLICATION DEVELOPMENT Week 1 : Introduction to Internet
  • 2. THE PLAN INTRODUCTION What is Internet HISTORY ARPANET > INTERNET > WWW APPLICATIONS WWW, email, ftp, telnet, newsgroup, mailing list, chatroom, portals INTRANET Intranet vs. Internet
  • 3. HOW TO HOOK UP TO THE INTERNET?
  • 4. HOW TO HOOK UP TO THE INTERNET?
  • 5. HOW TO HOOK UP TO THE INTERNET?
  • 6. WHAT DOES INTERNET LOOK LIKE?
  • 8. BASIC TERM DEFINITION INTERNET A combination of networks connected each other NETWORK a collection of computers & devices connected together via communication devices & media
  • 9. THE INTERNET • world’s largest network • worldwide collection of networks Government offices businesses Educational institutions Links together millions of: Individuals
  • 10. WHAT DOES INTERNET PROVIDES? www Chat rooms E-mail Internet provides services: Newsgroups FTP Telnet
  • 11. USES OF INTERNET Access a wealth of info conduct business, (news, research & educational material) (online banking & investment transactions) entertainment & leisure shop for goods & services
  • 12. USES OF INTERNET (CONT) Social Networking (fb, chatrooms, twitter) Access other computers & exchange files Communication
  • 14. ARPANET : INTERNET HISTORY ARPA: (Advanced Research Projects Agency) by Pentagon (DoD, USA) To built a networking projects. ARPA goals: Allow scientists at different locations to share info & collaborate on military & scientific projects. Could function even if part of the network are disabled or destroyed by a disaster. That network, called ARPANET (September 1969)
  • 15. ARPANET : INTERNET HISTORY The Original ARPANET was a WAN consisted of 4 main computers; •University of California •Stanford research Institute •University of California at Santa Barbara •University of Utah 1971, ARPANET had been connected to more than 30 universities, defense departments, governments bodies and other institutions over the US.
  • 16. ARPANET : INTERNET HISTORY By 1984, ARPANET had more than 1000 individual computers linked as a host. In 1986, NSF (National Science Foundation) connected its huge of 5 supercomputers centres called NSFnet, to ARPANET This configuration of complex networks & hosts became known as the INTERNET. 1990, commercial companies are allowed to join.
  • 17. WWW –WORLD WIDE WEB Exist in early 90’s Consists of a worldwide collection of documents that have built-in hyperlinks to other related documents Allows user to navigate quickly from one document to another An electronic doc. on the web is call a web page.
  • 18. WWW –WORLD WIDE WEB Each web page on a web site has unique address, called Uniform Resource Locator (URL) URL consist of: a protocol (Most begin with http://) a domain name (sometimes) the path to specific web page
  • 19. PROTOCOL PROTOCOL PURPOSE http Transferring web pages ftp Transferring files telnet Remote login news mailto Requesting news from a news group Sending e-mail file Local file access
  • 20. DOMAIN SUFFIX SUFFIX USE com Commercial sites edu Educational institutions gov government agencies net Network organizations org Non-profit organizations
  • 22. WWW –WORLD WIDE WEB Web Browser : software to access & view web page.
  • 23. WWW –WORLD WIDE WEB HTML : Web page is created by using HTML (Hypertext markup language)
  • 24. WWW –WORLD WIDE WEB Web Server : stores the web pages that comprise a web site. Web Master : individual who responsible for developing & maintaining web site.
  • 26. E-MAIL • Electronic Mail • Transmission of messages & files via a computer network • E-mail function: create, send, receive, forward, store, print & delete message. • E-mail address: combination of a user name & domain name. malik.rick@johor.uitm.edu.my malik.rick@exxonmobil.com
  • 27. FTP File Transfer Protocol An Internet standard that allows user to exchange files with other computers on the Internet FTP server – a computer that allows user to upload and download files using FTP FTP sites – a collection of files including text, graphics, audio, video and programs files.
  • 28. TELNET Program/command that enables user to connect remote computer on the Internet To connect – enter a user name and password Once connected, your computer acts like terminal directly linked to the remote computer Example – accessing library cataloging.
  • 29. NEWSGROUP Online discussions group conducted by user in any particular subjects but in written. To participate, user sends message to a certain newsgroup, then other users respond by replying to the message.
  • 30. MAILING LISTS  A collection of e-mail addresses grouped in a single user. When message is sent to a mailing list, every person in the list receives a copy of message in their mailbox Example: csc318@yahoogroups.com
  • 31. CHAT ROOMS  Real-time typed conversation that takes place on a computer. Must be online at the same time Chat room – communication medium or channel that permits users to join chatting. Support text-based & also graphical
  • 32. PORTALS •A Web Site but offers a variety of internet services from a single convenient location. Services are: Search Engine Local, national, worldwide news, sports, weather Reference e.g.. Yellow pages & maps Shopping malls E-mail Chat rooms
  • 34. INTRANET Small version of Internet that used within an organization. Sometimes called an enterprise network Use TCP/IP protocols
  • 35. The Inter-network is a big network of networks.