Networking Devices and Network Components

Networking devices are products used to connect networks. As computer networks grow in size and complexity, so do the networking devices used to connect them.

However, all networking devices share one or more common purposes.

1. They allow a greater number of nodes to be connected to the network. A node is an endpoint of a network connection or a junction common to two or more lines in a network. Nodes can be processors, controllers, or workstations. Nodes vary in routing and other functional capabilities; they can be interconnected by links, and they serve as control points in the networks. Node is sometimes used generically to refer to any entity that can access a network and is frequently used interchangeably with device.
2. They increase the distance over which a network can extend.
3. They localize traffic on the network.
4. They can merge existing networks.
5. They isolate network problems so that the problems can be diagnosed more easily.

The following networking devices broadly used in network.

1. Repeaters
2. Hubs
3. Bridges
4. Switches
5. Routers
6. Gateways
7. Modems
8. Network Interface Card (NIC)

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