Wednesday, August 22, 2018

What are the types of Computer Topology?

DIFFERENT TYPES OF COMPUTER TOPOLOGY:


  • LINEAR BUS TOPOLOGY is a type of network topology in which each device is connected one after the other in a sequential chain. In this case, the bus is the network connection between the devices, and if any link in the network chain is severed, all network transmission is halted. It works well for small networks because it is simple to set up and utilizes shorter cables since each device is connected to the next. It is a poor solution for larger networks, however since the entire network relies on each connection, and network speed is reduced as more devices are added.





  • STAR TOPOLOGY  is one of the most common network setups. In this configuration, everynode connects to a central network device, like a hub, switch, or computer. The central network device acts as a server and the peripheral devices act as clients. Depending on the type ofnetwork card used in each computer of the star topology, a coaxial cable or a RJ-45 network cable is used to connect computers together.






  • RING TOPOLOGY is a network configuration in which device connections create a circular data path. Each networked device is connected to two others, like points on a circle.
In a ring network, packets of data travel from one device to the next until they reach their destination. Most ring topologies allow packets to travel only in one direction, called a unidirectional ring network. Others permit data to move in either direction, called bidirectional.







  • MESH TOPOLOGY,  is a local network topology in which the infrastructure nodes connect directly, dynamically and non-hierarchically to as many other nodes as possible and cooperate with one another to efficiently route data from/to clients. This lack of dependency on one node allows for every node to participate in the relay of information. Mesh networks dynamically self-organize and self-configure, which can reduce installation overhead. The ability to self-configure enables dynamic distribution of workloads, particularly in the event that a few nodes should fail. This in turn contributes to fault-tolerance and reduced maintenance costs.

In a partially connected mesh topology, at least two of the computers in the network have connections to multiple other computers in that network. It is an inexpensive way to implement redundancy in a network. In the event that one of the primary computers or connections in the network fails, the rest of the network continues to operate normally.

In a full mesh topology, every computer in the network has a connection to each of the other computers in that network. The number of connections in this network can be calculated using the following formula (n is the number of computers in the network): n(n-1)/2






  • HYBRID TOPOLOGY, is a combine of two or more topologies in such a way that the resulting network does not exhibit one of the standard topologies
Is a type of network topology that uses two or more differing network topologies. These topologies include a mix of bus topology,mesh topology, ring topology, star topology, and tree topology.


  SOURCE:
https://www.computerhope.com/jargon/h/hybrtopo.html
https://en.wikipedia.org/wiki/Network_topology

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