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Is a worldwide PC network made up of thousands networks connected together. All of these PCs communicate with one another; they share information, resources, and exchange data, and so on. To accomplish it they have to utilize the same language or protocol: TCP/IP (Transmission Control Protocol/Internet Protocol

Transforms digital signals stored in the PC into analogue signals that can be transmitted over the phone lines or cable network

Is utilized for the exchange of messages and attached files throughout the world.

Is a system that allows people make voice calls via the Internet

For real time conversations; you type your messages on the keyboard

Is a collection of files or pages containing connections to different documents on the Net

Modem

Email or electronic mail

The Internet

WWW

Internet telephone

Chat and instant messaging