What’s a computer network and where do network nodes fit in?
A computer network is a system of computers and calculating bias that are connected via communication links. These links allow the computers and other bias to shoot information over the network.
Network protocols define how information is transferred and entered. Networks can be defined by their geographic position, the protocols they use, the physical arrangement of the network factors and their purpose.
Computer networks can be physical or logical. A physical computer network is a real network comprised of the string and bias that shoot data back and forth.
Logical networks are software representations of a physical network. They’re erected on top of a physical network.
Computer networks aim to partake information and coffers among multiple digital bias. The internet is an illustration of a computer network.
It’s made up of numerous lower computer networks. Computer networks make effects like videotape streaming, social networks and pall networks possible.
A network node is a connection point in a dispatches network. Each node is an endpoint for data transmissions or redivision.
nodes have either a programmed or finagled capability to fete , process and forward transmissions to other network nodes .
The conception of network nodes came into being with the use of distributed networks and packet switching. Depending on the operation, network nodes perform a variety of functions.
The Connect and Network Node video
What does a network node do?
A network node sits at a point in the network where it sends, receives, stores or creates information. It transmits data to communicate with other nodes in the network.
In a computer network, nodes can be physical networked bias, similar as modems, PCs and printers. These bias fete transmissions from other nodes and further them to other nodes . A node checks for identification, similar as an IP address, to grant access to the node .
Nodes connect over a link or communication channel. In a computer network these may be string, fiber optic or wireless connections.
What are the types of network nodes ?
There are several ways to classify nodes . One way is by network type; another is by network topology.
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• Data communications. In data dispatches, physical network nodes include data dispatches outfit or bias that sit between data terminal outfit( DTE) and data transmission circuits. These include switches, islands, modems or capitals that perform signal conversion, rendering and line clocking. These nodes also include DTE, similar as digital telephone handsets, printers, routers, waiters and workstations.
• Internet network. On the internet and with intranets, utmost physical network nodes are host computers linked by an IP address. still, some data link bias, similar as wireless original area network( LAN) access points, don’t have IP host addresses. They’re considered physical network or LAN nodes rather than internet nodes or hosts.
• LANs and wide area networks. These nodes are bias that perform a specific function. Each bone
must have a Media Access Control address for each network interface card. exemplifications include modems with Ethernet interfaces, wireless LAN access points and computers.
• Telecommunications network. In fixed telephone networks, nodes may be public or private telephone exchanges or a computer furnishing an intelligent network service. In cellular dispatches, nodes include base station regulators that control one or further base stations. Cellular network base stations aren’t considered nodes .
• Cable system. In string systems, nodes use fiber optical string to connect to businesses and homes served by a common fiber optical receiver within a geographic position. A fiber optical node describes the number of homes or businesses that a specific fiber node can serve.