Unit 33 , P1

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UNIT 33: THE IMPACT OF COMMUNICATIONS TECHNOLOGY ON BUSINESS Describe how the internet operates 1. What is the internet? When and how did it start? The Internet, sometimes called simply "the Net," is a worldwide system of computer networks (a network of networks in which users at any one computer can, if they have permission they get information from any other computer (and sometimes talk directly to users at other computers). the 1960s and 1970s, the US Department of Defense funded programs where computer scientists were paid to develop Internet protocols. The evolution of the Internet continued in the early 1980s when the National Science Foundation funded a program at many colleges and universities aimed at creating connected computer networks across the United States. Electronic mail and instant messaging joined the WWW as part of the public "Internet" in the mid-1990s. 2. What is the World Wide Web (WWW)? How was this developed The Internet is the actual network of networks where all the information resides. Things like Telnet, FTP, Internet gaming, Internet Relay Chat (IRC), and e-mail are all part of the Internet, but are not part of the World Wide Web. The Hyper-Text Transfer Protocol (HTTP) is the method used to transfer Web pages to your computer. With hypertext, a word or phrase can contain a link to another Web site. 3 What is a computer network? A collection of computers, servers, mainframes, network devices, peripherals, or other devices connected to one another allowing for data to be shared and used. A great example of a network is the Internet. 4 What is the difference between an intranet and an extranet? An Intranet is a private security network that uses Internet Protocol technologies in order to secure the information of the company that is not shared outside the company or operational system within the
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