Wednesday, August 22, 2018

What are the types of computer network?

What are the types of computer network?

What is a computer network?
A computer network, or data network, is a digital telecommunications network which allows nodes to share resources. In computer networks, computing devices exchange data with each other using connections between nodes.



LAN (local area network)
A local area network is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus or office building.
MAN (metropolitan area network)
A metropolitan area network is a computer network that interconnects users with computer resources in a geographic area or region larger than that covered by even a large local area network but smaller than the area covered by a wide area network.
WAN (wide area network)
A wide area network is a telecommunications network or computer network that extends over a large geographical distance/place. Wide area networks are often established with leased telecommunication circuits.
PAN (personal are network)
A personal area network is a computer network for interconnecting devices centered on an individual person's workspace. A PAN provides data transmission amongst devices such as computers, smartphones, tablets and personal digital assistants. 





What are the types of network topology?

What are the types of network topology?



Network topology is the arrangement of the elements of a communication network. Network topology is the topological structure of a network and may be depicted physically or logically.






Linear Bus Toplogy

Linear bus topology is a type of network topology in which each device is connected one after the other in a sequential chain (shown right). In this case, the bus is thenetwork connection between the devices, and if any link in the network chain is severed, all network transmission is halted. 















Star Topology 

Star topology is a network topology where each individual piece of a network is attached to a central node (often called a hub or switch). The attachment of these network pieces to the central component is visually represented in a form similar to a star.













Ring Topology

A ring network is a network topology in which each node connects to exactly two other nodes, forming a single continuous pathway for signals through each node - a ring.











Hybrid Topology


Hybrid topology is an integration of two or more different topologies to form a resultant topologywhich has many advantages (as well as disadvantages) of all the constituent basic topologiesrather than having characteristics of one specifictopology.









Mesh Topology

A mesh network 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




Source:https://www.studytonight.com/computer-networks/network-topology-types