The Internet
Define
the internet
Discuss advantages of the internet
List requirement needed to access
the internet
Networks and the Internet


What is the Internet?
Worldwide collection of networks that connects
millions of businesses, government agencies,
educational institutions, and individuals
History of the Internet

How did the Internet originate?
ARPANET
Goal:
To allow scientists
at different
locations to share
information
p. 69
Networking project by
Pentagon’s Advanced
Research Projects
Agency (ARPA)
Goal:
To function if
part of network
were disabled
Became
functional
September 1969
Next
The advantages of the Internet

Why do users access the Internet?
1.
Communications
2.
Information
3.
Shopping
4.
Banking and Investing
5.
Classes
6.
Entertainment
p. 12-13 Fig. 1-8
Next
The Basic requirement needed to access
the internet
Network Interface Card (NIC)
 Wireless Network Interface Card (WNIC)
 internal and external modem
 hub or switch
 router
 wireless access point

WIRELESS NETWORK
INTERFACE CARD
Modem (internal and external)
NETWORK INTERFACE
CARD
HUB/SWITCH
ROUTER
INTERNET
APPLICATIONS
Define the World Wide Web (www)
WIRELESS ACCESS POINT

A wireless access point is a device that
connects wireless communication devices
together to form a wireless network.
The World Wide Web

What is the World Wide Web (WWW)?
A worldwide collection of electronic documents
Also called the Web
Each electronic document is called a Web page
Can contain text, graphics, sound, video, and built-in connections
A Web site is a collection of related Web pages
p. 75
The World Wide Web


What is a Web browser?
Program that allows you to view Web pages
Microsoft
Internet
Explorer
Safari
p. 75
Netscape
Mozilla
Opera
Next
SEARCH ENGINE
What is a search engine?
Program used to find
Web sites and Web pages
by entering
words or phrases
called search text
www.google.com
www.altavista.com
www.hotbot.com
www.yahoo.com

Search For Information Using a Search Engine
Step 2.
Select type of
search you want
to run
Step 1. Go to search engine
Step 3. View hits
Step 4.
p. 80 Fig. 2-12
Click
link to view
Web site
Next
Download Files From Internet
Images
Audio
Video
Type keyword and
click find
Select the image you want
The internet
SEARCH FOR INFORMATION
USING SEARCH ENGINE
Step 2.
Select type of
search you want
to run
Step 1. Go to search engine
Step 4.
Click
link to view
Web site
p. 80 Fig. 2-12
Step 3. View hits
NETIQUETTE

Code of acceptable behaviors users should
follow while on the Internet
Golden Rule: Treat others as
you would like them to treat you.
INTERNET COMMUNICATION
E – Mailing
 Chatting
 Conferencing
 Netmeeting
 Newsgroup
 Forum

E- MAILING

Email address -Unique name that
consists of a user name and domain
name that identifies the user
Chatting



What is a chat?
Real-time typed conversation
that takes place on a computer
Chat room is location on
server that permits users
to discuss topics of interest
Newsgroup

What are newsgroups and message boards?

Online area where users discuss a particular subject
Conferencing


What is video conferencing?
Two or more geographically separated people who use
network or Internet to transmit audio and video data

Whiteboard is another
window on screen that can
display notes and
drawings
simultaneously on
all participants’ screens
LIST PERIPHERALS USED FOR
COMMUNICATION
Web
Camera
Microphone
Earphone
Web camera


What are a PC video camera and a Web
cam?
PC video camera — DV camera used to capture video
and still images, and to make
video telephone calls on Internet
c


c
Also called PC camera
Web cam — video camera
whose output displays on
a Web page
c
c
COMUNICATING USING EMAIL
1.
 2.
 3.
 4.
 5.
 6.

Register an e- mail account
send message
attach files to message
receive / retrieve message
downloads attach message
delete / save message
END