Computer Network by Topology

Like a human... ha ha ha ha... We also can be grouped into 2 sexes, man and woman. Computer network have some different physical connection, we called it topology.

This notes below are summarized from wikipedia online encyclopedia.
Network topology is the study of the arrangement or mapping of the elements (links, nodes, etc.) of a networks, especially the physical (real) and logical (virtual) interconnections between nodes.

There are about 6 topologies, however we only discuss 4 kind of topologies in class.




BUS Topology,
The type of network topology in which all of the nodes of the network are connected to a common transmission medium which has exactly two endpoints. The two endpoints of the common transmission medium are normally terminated with a device called a terminator.

RING Topology,
The type of network topology in which each of the nodes of the network is connected to two other nodes in the network and with the first and last nodes being connected to each other, forming a ring – all data that is transmitted between nodes in the network travels from one node to the next node in a circular manner and the data generally flows in a single direction only.

STAR Topology,
The type of network topology in which each of the nodes of the network is connected to a central node with a point-to-point link in a 'hub' and 'spoke' fashion, the central node being the 'hub' and the nodes that are attached to the central node being the 'spokes' – all data that is transmitted between nodes in the network is transmitted to this central node, which is usually some type of device that then retransmits the data to some or all of the other nodes in the network, although the central node may also be a simple common connection point without any active device to repeat the signals.

MESH Topology,
The type of network topology in which each of the nodes of the network is connected to each of the other nodes in the network with a point-to-point link – this makes it possible for data to be simultaneously transmitted from any single node to all of the other nodes. The physical fully connected mesh topology is generally too costly and complex for practical networks, although the topology is used when there are only a small number of nodes to be interconnected.