obile phone or by portable satellite transceiver. For the Internet to work, clients, servers, routers and packets are needed. Once you have these physical components, the data is exchanged between programs using protocols. The most common are FTP, Gopher, HTTP and TCP/IP. There are three types of Internet addresses: URL's, IP, and Domain Name System.Hypertext, Browsers and E-mail are client application software used on the Internet. URL's provide hypertext links between different document and document types. Web browsers display Web pages and e-mail to send and receive e-mail messages. In the Internet process, you call up a URL. Packets are then sent to the specific server's IP address to relay the message; the DNS locates the remote computer and communicate directly. The data arrives at the destination computer that identifies where the data is to be directed so the connection can be made. Once connected, the two computers exchange a dialogue to identify each other and the e-mail message. Next, the browser software connects to the Web server, requests files, and downloads Web pages As your browser downloads and interprets the HTML code, the contents are displayed on the screen. GLOSSARYBackbone - the main link of a telecommunications carrier.Client - a computer that requests information from the server, much like a customer in a restaurant orders food from the waiter.Client Applications - the software applications used on the Internet.Domain - part of the Uniform Resource Locator (URL) that refers you to the Web server name, much like the name of a folder in which you have certain information filed.Domain Name System (DNS) - a system in which the DNS Server matches Domain Names to IP addresses much like the Yellow Pages matches business names to phone numbers.File Transfer Protocol (FTP) - one of the oldest and most popular Internet services used to transfer files..GIF - Graphics Interchange Format; a graphic filegTLD - a ge...
