WEBVTT

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As there are different types of networked media, the network host should be equipped with

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an appropriate interface to make the connection.

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In some cases, a network adapter is an integrated part of the motherboard.

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This is often the case when connecting to a copper-based media, such as twisted pair

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cable, when connecting to a different type of media, for example fiber optic, and the

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engineer will more than likely be required to install an additional network, adapter

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to provide a suitable connection.

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The function of the network interface card is quite complicated.

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It has to convert the digital signals from the device into a signal that is suitable

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to be transmitted through the network medium.

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Finally, we need a protocol.

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This is an agreed set of rules on how information is form and sent onto the network if the

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protocols are different, and communication cannot be made between the devices.

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This is similar to trying to speak to someone who doesn't speak your language.

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Let's consider the following example here.

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We have four computers with four different operating systems.

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Communication is still possible, as long as the computers are configured to use the same

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protocol.

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The protocol dictates how the denture is assembled.

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It also dictates how it is unpacked when it is received by another computer on the same

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network.

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The protocol provides the rules of communication between the hosts.

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So to summarize, there are four components that make up a network, and these are the

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network devices that are referred to as nodes, or hosts.

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The network media, which is a cable or wireless media, that connects the devices together,

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and network interface that is used to connect the host to the medium, and translates the

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digital signal into a signal that can be transmitted through the medium, and a common protocol

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is a common language, or set of rules used by the hosts to communicate.