Computer networks can be classified in the network topology when the network is based, a bus network, Star network, Ring network, mesh network, Star-bus network, or hierarchical tree network topology. Network topology means how devices on the network see logical connections between them. The use of the term "logical" here is significant. This means that the network topology is independent of the "physical" structure of the network. Even if networked computers are physically placed in the linear regime, if they are connected through a hub network is a star topology, instead of a bus topology. In this context, visual and performance of the network to distinguish logical network topology is not necessarily the same as a physical plan. Networks can be classified according to the method of data used for data transmission, these include digital and analog networks.
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