The Internet and the WWW

Derek Bridge

Department of Computer Science,
University College Cork

The Internet and the WWW



Local Area Networks (LANs) connect together computers that are relatively close to each other, typically within the same room or building


Wide Area Networks (WANs) connect together devices or other networks over a greater distance than is practical for local area networking

An internet

A network of networks is an internet

The Internet

The Internet is a global internet that uses a particular set of communications protocols (the TCP/IP stack of protocols)



Web requests and responses

Web client hardware, running Web client software such as a Web browser sends an HTTP GET request to a Web server. The Web server hardare is running Web server software, and it sends back an HTT response.

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