A Web server is the server software behind the World Wide Web. It listens for requests from a client, such as a browser like Netscape or Microsoft’s Internet Explorer. When it gets one, it processes that request and returns some data. This data usually takes the form of a formatted page with text and graphics. The browser then renders this data to the best of its ability and presents it to the user. Web servers are in concept very simple programs. They await for requests....

When a company or organization wants to use the Internet, they must decide whether they want to do it by directly attaching to the Internet system or whether they will use another company to supply the connection. Many companies choose to use another company, called a service provider, because it reduces the amount of equipment, administration, and costs involved. If the company or organization wants to directly connect (and sometimes when they are using a service provider), t....

One of the most widely used network topologies (and the one most often used in medium to large Local Area Networks) is the bus network. A bus network uses a cable to which are attached all the network devices, either directly or through a junction box of some sort. Each device uses a transceiver to connect to the backbone. The manner of attachment depends on the type of bus network, the protocol in use, and the speed of the network. The main cable that is used to connect all t....