NETWORK DEVICES

Network devices are components used to connect computers or other electronic devices together so that they can share files or resources like printers or fax machines. Devices used to setup a Local Area Network (LAN) are the most common type of network devices used by the public. A LAN requires a hub, switch, router.




What is a network device?


Networking devices may include gateways, routers, network bridges, modems, wireless access points, networking cables, line drivers, switches, hubs, and repeaters and may also include hybrid network devices such as multi layer switches, protocol converters, bridge routers, proxy servers, firewalls, network address.



Why we use a network?


The following are the important uses and benefits of a computer network.

 File sharing: Networking of computers helps the network users to share data files.

 Hardware sharing: Users can share devices such as printers, scanners, CD ROM drives, hard drives etc. Without computer networks, device sharing is not possible.



What are the various networking devices?


Units which are the last receiver or generate data are called hosts or data terminal equipment.
Hub Repeater Modem NIC (Network Interface Card) Media converters Basic switch Bridge Wireless access point.



What are the advantages  of using a network?


Files can be stored on a central computer (the file server) allowing data to be shared throughout an organization. Files can be backed up more easily when they are all on a central file server rather than when they are scattered across a number of independent workstations.


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Network Routers

A router is a networking device that forwards data packets between computer networks. Routers perform the traffic directing functions on the Internet. A data packet is typically forwarded from one router to another router through the networks that constitute an internet until it reaches its destination node.

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Network Switch

    A network switch (also called switching hub, bridging hub, officially MAC bridge) is a computer networking device that connects devices together on a computer network by using packet switching to receive, process, and forward data to the destination device.

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Network Cables

Networking cables are networking hardware used to connect one network device to other network devices or to connect two or more computers to share printers, scanners etc.Electrical connections using twisted pair or coaxial cable are used within a building.

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Patch Panels

A patch panel in a local area network (LAN) is a mounted hardware assembly that contains ports used to connect and manage incoming and outgoing LAN cables. Patch panels are also referred to as patch bays, patch fields or jack fields and are also commonly used in radio and television.

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Network Repeaters

A network device used to regenerate or replicate a signal. Repeaters are used in transmission systems to regenerate analog or digital signals distorted by transmission loss. Analog repeaters frequently can only amplify the signal while digital repeaters can reconstruct a signal to near its original quality.