| A | B |
|---|
| content streaming | Sometimes called streaming media, streaming video, or streaming audio, a technique in which the media begins playing while the file is being delivered. |
| social bookmarking | Web sites that provide a way for Web users to store, classify, share, and search Web bookmarks; also referred to as favorites. |
| dial-up connection | A low-speed Internet service that utilizes the customer’s phone line for data transfer rates as high as 56 kilobits per second (Kbps). |
| digital subscriber line | Uses the customer’s phone line, but there is no dialing up and users can use the Internet and talk on the phone simultaneously. |
| e-mail | The transmission of messages over a computer network to support asynchronous text-based communication. |
| e-mail attachment | Typically a binary file, such as an image file, Word document, music file, or spreadsheet, that travels along with an e-mail message but is not part of the e-mail ASCII text message itself. |
| Extensible Markup Language | A markup language that provides a method for describing and classifying the content of data in a Web page. |
| hyperlink | An element in an electronic document—a word, phrase, or image—that when clicked, opens a related document. |
| Hypertext Markup Language | The primary markup language that is used to specify the formatting of a Web page. |
| Hypertext Transfer Protocol | The protocol of the Web that controls communication between Web clients and servers. |
| instant messaging | Synchronous one-to-one text-based communication over the Internet. |
| Internet backbone | The main Internet pathways and connections made up of the many national and international communication networks that are owned by major telecom companies. |
| Internet service provider | Company that provides users with access to the Internet through network service providers’ (NSPs’) points of presence (POPs). |
| IP address | A unique 32-bit identifier for Internet hosts (all devices connected to the Internet). |
| peer-to-peer | A network architecture that does not utilize a central server, but facilitates communications directly between clients. |
| plug-in | Works with a Web browser to offer extended services such as audio players, video, animation, 3D graphics viewers, and interactive media. |
| port | A logical address used by clients and servers that is associated with a specific service. |
| router | Special-purpose computing device—typically a small to large unit with network ports—that manages network traffic by evaluating messages and routing them over the fastest path to their destination. |
| search engine | A valuable tool that enables you to find information on the Web by specifying words that are key to a topic of interest (keywords). |
| cookies | Small text files stored on a computer by a Web server in order to recognize a user who revisits the Web site. |
