These high speed data lines, along with the equipment that connects them all together is referred to as the "backbone" of the internet.
Modem.
Most commonly, a computer modem is a device that gives you internet from your Internet Service Provider (ISP). They usually connect to your phone, cable, or dish line to send and receive data. To get internet, you then connect your computer to the modem directly or you connect to a device called a router (share internet with multiple devices) in which connects to the modem.
A camera that can connect to a computer or to any network (including the Internet) is called a webcam (short for web camera).
The modem on your computer must connect to your Internet Service Provider's server over a land telephone line. You connect the computer's modem to a telephone jack as you would a telephone.
Today, the Arpanet is called "Internet".Today, the Arpanet is called "Internet".Today, the Arpanet is called "Internet".Today, the Arpanet is called "Internet".
The iPhone has an internet browser called Safari. In theory, if you have access to a WiFi connection, you can connect to the internet. Also, you can connect to the internet through a networks 3G connection.
if you are using windows, you will find a program called "Internet Explorer" IE that you can connect to the web through it, we called it "web browser". There are many several browsers like "Firefox" and "Google Chrome"
bad
This is called Ad-Hoc networking. You can go to http://compnetworking.about.com/od/wireless/ht/setupadhocwifi.htm to setup an Ad-Hoc network.
This would be called the Internet Backbone
easy. its called wifi
An Internet working device used to connect different LAN segments is called a Modem. A Modem can be either hard wired to the computer or use a Wi-Fi connection to connect to the computer. Dial up Modems were also used that ran through telephone lines.