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What is the INTERNET ?
The Internet is a global system of interconnected computer network.
It is a network of networks that consists of millions of private and public, academic, business, and government networks of local to global scope that are linked by copper wires, fiber-optic cables, wireless connections, and other technologies.
INTERNET
Technically, the "internet" is all the computers in the world that are connected, including the technologies (routers, servers, etc (which are also computers actually) as well as the wires and antennas that keep all the computers talking to each other.
So the "internet" is not just your web email. It is everything that goes over those wires from one computer to another: the email itself, web sites, messenger (such as Yahoo Messenger or MSN Messenger), phone calls on Skype, messages from an ATM to a bank, ...
The words "Internet" and "Web" are often used interchangeably. Strictly speaking, the "Internet" would be everything that goes between computers, and the "Web" would be ... websites.
What is the INTERNET ?
Importance of the internet to you.
Because of all these things, the "internet" is a gigantic library, as well as a world-wide message board, telephone network, and publishing medium. It is open 24 hours a day, and you can find anything you want there, and say anything you want.
Importance of the internet to our organization
•"Communication" with other organizations, with your members, with your staff, with your supporters and donors.
some great ways: letters, phone calls, faxes, meetings
additional ways: email, messenger, web pages, mail lists, web site message boards
•"Publishing" your message to the world.
some great ways: books, journals, brochures, press releases, workshops, conferences, lectures.
additional ways: website with conference proceedings, PDF files of your publications, blogs, newsfeeds
•Customer support"
the people you are helping through your organization. Nothing is better than people with people: interviews, workshops, conferences, classes.
additional ways can help them when you aren't there: email, messenger, web pages, mail lists, web site message boards. With video-conferencing, podcasting and other great web tools, you can even have workshops and classes online.
•"Research" on the news, issues, papers and literature relevant to your cause.
some great ways: books, magazines, journals, papers
•Increase credibility•increase exposure •Greater quantity and quality of inquiries. •Increase donations and sales•Reduce cost per contact•Increased access to your information•Save on printing costs• Reduce phone usage and staff load. •educe postage, express mail and courier service, and phone costs. •increase your "green rating".
Viewing objectionable material Meeting someone online Losing privacy Losing time Finding false information
What are the Risks?
Here are some of the major risks you and your family face when using the Internet:
History of Internet
ARPANET
The ARPANET (Advanced Research Projects Agency Network) created by ARPA of the United States Department of Defense during the Cold War, was the world's first operational packet switching network, and the predecessor of the global Internet.
ARPANET Started In Late – 1970
ARPANET Logical Map
Born - 8 June 1955 ) (age 54) London, England
Other names - Tim
Education - The Queen's College, Oxford
Occupation - Computer Scientist
Employer - World Wide Web Consortium and University of Southampton
Known for - Inventing the World Wide Web
Title - Professor
Timothy Berners-Lee (Tim Berners-Lee)
Network
1. LAN – Local Area Network
2. MAN – Metropolitan Area Network
3. WAN – Wide Area Network
Network
LAN – Local Area Network
Network
MAN – Metropolitan Area Network
Network
WAN – Wide Area Network
INTERNET
Connecting through
Satellite
Connecting through
Cable
Internet Submarine Cable
Repeaters
Internet Submarine Cable Map
SEA - ME – WE Cable System
South - East Asia - Middle East - Western Europe Cable System
Cable Path - Singapore to France
Cable Length - 13 500 km
Connected Countries - 7
Launched on - 08th September 1986
Internet Submarine Cable
Internet Satellite System
How computers are connected to the internet
What Are The Different Methods Of Connecting To The Internet?
There are numerous ways to connect to the Internet. Here are the more obvious ones:
Direct connection, by using a computer that is permanently plugged into the Internet.
By phone line. This may be by dial-up or ADSL, but still uses a phone line.
By cable. This facility is provided by a cable-TV supplier.
In a wireless hotspot.
By satellite. It is possible to have two-way satellite Internet communications nowadays, but it is quite expensive.
How to get connected to the Internet ?
Computer
Modem
Phone Line
Internet Service Provider (ISP)
Internet Map
Internet Servers
Modem
Modulator Demodulator - MODEM
Modem (from modulator-demodulator) is a device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information.
Internet Modem
External Modem
Internet Modem
Internal Modem
Internet Modem
Wireless Modem (USB Modem )
Web Browsers
What is a Web Browser ?
A web browser is a software application that retrieves and collects information resources and arranges and displays the Internet resources on the computer screen.
The major web browsers
Windows Internet Explorer
Mozilla Firefox
Apple Safari
Google Chrome
Opera.
Internet Explorer interface Mozilla Firefox interface
Apple Safari interface Google Chrome interface
Web Search Engine
What is a Web Search Engine ?
A Web search engine is a tool designed to search for information on the World Wide Web.
Search Engine LOGOs
Search Engine
Search Engine
Search Engine
Search Engine
Web Page & Web Site
Connecting to other pages
Web Browser
Web Address
(URL)
Web Hyperlinks
Picture
Hyperlinks
Content of Web Page
Hyperlinks and Web pages
Web Address
http://www.
http - Hypertext Transfer Protocol
www - World Wide Web
Keep the computer in a shared room so you can see what the child is doing online.
Ensure children are not using mobiles devices in their rooms when they should be sleeping.
Ensure that your child knows the dangers of giving out personal information over the web and never does this.
Talk to your kids, make sure they know the risks, get involved with your child's life online, learn with your child.
Tips for Parents
Set rules about time online (recommended max 2 hours* screen time per day, including TV)
Let your children know that not everything they read online is true. That goes for people in chat rooms and virtual worlds too, as people are not always who they say they are.
Don't allow them to share personal pictures of themselves or others with strangers. Make sure that older children think about the consequences of their online actions and their online reputation.
Tips for Parents
