Nt1310 Computer Network

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A network is a group of two or more computer systems which are linked together to communicate with one another. It is a telecommunication network that allows computers to exchange data. In computer networks, networked computing devices pass data to each other along data connections. The connections between nodes are established using either cable media or wireless media. The best-known computer network is the Internet. Different systems share resources available in the network. Shared resources can be of software type or hardware type. The devices that form network to exchange data are called network nodes. These nodes can include hosts such as personal computers, phones, servers as well as hardware. Computer networks differ on the basis of physical media used to transmit their signals, the communication protocols used to organize network traffic, the size of the network, topology used in the network. Networks can be categorized as following:
a) Transmission media based networks like wired networks (communication takes place through wires) and wireless networks (communication takes place wirelessly).
b) Network Size based networks like MAN, LAN and WAN.
Wireless Networking is a technology in which two or more computers communicate with each other using standard network protocols and without using cables. The transmission …show more content…

In ad-hoc network, every node participates in routing by forwarding data to all the nodes in the network and determination of which nodes forward data is made dynamically on the basis of network connectivity. Nodes within each other’s radio range communicate directly via wireless links while those which are far apart rely on other nodes to send messages. Ad-hoc network is a new standard of wireless communication for mobile hosts. Basically it’s a network which is used in case of urgent situations. All the nodes act as router in this

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