Citizendia
Your Ad Here

A node (Latin nodus, ‘knot’) is a critical element of any computer network. Latin ( lingua Latīna, laˈtiːna is an Italic language, historically spoken in Latium and Ancient Rome. A computer network is a group of interconnected Computers. Networks may be classified according to a wide variety of characteristics It can be defined as a point in a network at which lines intersect or branch, a device attached to a network[1], or a terminal or other point in a computer network where messages can be transmitted, received or forwarded. [2]

A node can be any device connected to a computer network. A computer network is a group of interconnected Computers. Networks may be classified according to a wide variety of characteristics Nodes can be computers, personal digital assistants (PDAs), cell phones, switches, routers or various other networked devices. A A router ('rautər in the USA 'rutər in the UK and Ireland, or either pronunciation in Australia and Canada is a Computer whose software and hardware are usually

Role of nodes in networking

A node is a connection point, either a redistribution point or an end point, for data transmission. A communication endpoint is an interface exposed by a communicating party or by a communication channel Data transmission is the transfer of Data from point-to-point often represented as an Electro-magnetic Signal over a physical point-to-point or point-to-multipoint In general, a node has programmed or engineered capability to recognize and process or forward transmissions to other nodes.

If the network in question is a LAN or WAN, every node must have a MAC address if it is at least a data link layer device, as defined in the OSI model. In Computer networking a Media Access Control address ( MAC address) or Ethernet Hardware Address ( EHA) hardware address The Data Link Layer is Layer 2 of the seven-layer OSI model. It responds to service requests from the Network Layer and issues service requests to the The Open Systems Interconnection Basic Reference Model (OSI Reference Model or OSI Model) is an abstract description for layered communications and computer Network protocol In the Internet, many network nodes are host computers, identified by an IP address, and all hosts are nodes. However, datalink layer devices such as switches, bridges and WLAN access points do often have an IP host address (except sometimes for administrative purposes), but are considered as network nodes. The Data Link Layer is Layer 2 of the seven-layer OSI model. It responds to service requests from the Network Layer and issues service requests to the In Computer networking, a wireless access point ( WAP or AP) is a device that allows wireless communication devices to connect to a Wireless network

If the network in question is a peer-to-peer or overlay network, nodes that actively route data for the other networked devices as well as themselves are called supernodes. For other uses of the term see Peer-to-peer (disambiguation For peer-to-peer networks used for file sharing see File sharing An overlay network is a Computer network which is built on top of another network In Peer-to-peer networking a supernode is any node that also serves as one of that network's relayers and Proxy servers handling data flow and connections

In telecommunications, a node is a specific location in a telecommunication network. A telecommunications network is a network of Telecommunications links and nodes arranged so that messages may be passed from one part of the network to another over In cable television systems (CATV), this term has assumed a broader context and is generally associated with a fiber optic node. Fiber-optic communication is a method of transmitting information from one place to another by sending Light through an Optical fiber. This can be defined as those homes or businesses within a specific geographic area that are served from a common fiber optic receiver. A fiber optic node is generally described in terms of the number of "homes passed" that are served by that specific fiber node.

See also

References

  1. ^ AskOxford
  2. ^ encarta
The term node as used in the field of telecommunications refers to an active electronic device that is capable of sending receiving or forwarding information over a communications channel In Computer networking, a network host, Internet host or host is a Computer connected to the Internet.
© 2009 citizendia.org; parts available under the terms of GNU Free Documentation License, from http://en.wikipedia.org
Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic