Computer Networking & Communications Hardware Directory @ eIT.in

Computer Networking & Communications Hardware @ eIT.in

This section of eIT.in provides web resources for computer networking & communications hardware. 

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Content derived from Wikipedia article on Computer Networking Device

Computer networking device

From Wikipedia, the free encyclopedia

Computer networking devices are units that mediate data in a computer network. Computer networking devices are also called network equipment, Intermediate Systems (IS) or InterWorking Unit (IWU). Units which are the last receiver or generate data are called hosts or data terminal equipment.

List of computer networking devices

Common basic network devices:

Gateway: device sitting at a network node for interfacing with another network that uses different protocols. Works on OSI layers 4 to 7.

Router: a specialized network device that determines the next network point to which to forward a data packet toward its destination. Unlike a gateway, it cannot interface different protocols. Works on OSI layer 3.

Bridge: a device that connects multiple network segments along the data link layer. Works on OSI layer 2.

Switch: a device that allocates traffic from one network segment to certain lines (intended destination(s)) which connect the segment to another network segment. So unlike a hub a switch splits the network traffic and sends it to different destinations rather than to all systems on the network. Works on OSI layer 2.

Hub: connects multiple Ethernet segments together making them act as a single segment. When using a hub, every attached device shares the same broadcast domain and the same collision domain. Therefore, only one computer connected to the hub is able to transmit at a time. Depending on the network topology, the hub provides a basic level 1 OSI model connection among the network objects (workstations, servers, etc). It provides bandwidth which is shared among all the objects, compared to switches, which provide a dedicated connection between individual nodes. Works on OSI layer 1.

Repeater: device to amplify or regenerate digital signals received while setting them from one part of a network into another. Works on OSI layer 1.

Some hybrid network devices:

Multilayer Switch: a switch which, in addition to switching on OSI layer 2, provides functionality at higher protocol layers.

Protocol Converter: a hardware device that converts between two different types of transmissions, such as asynchronous and synchronous transmissions.

Brouter: Combine router and bridge functionality and are therefore working on OSI layers 2 and 3.

Digital media receiver: Connects a computer network to a home theatre

Hardware or software components that typically sit on the connection point of different networks, e.g. between an internal network and an external network:

Proxy: computer network service which allows clients to make indirect network connections to other network services

Firewall: a piece of hardware or software put on the network to prevent some communications forbidden by the network policy

Other hardware for establishing networks or dial-up connections:

Multiplexer: device that combines several electrical signals into a single signal

Network Card: a piece of computer hardware to allow the attached computer to communicate by network

Modem: device that modulates an analog """carrier""" signal (such as sound), to encode digital information, and that also demodulates such a carrier signal to decode the transmitted information, as a computer communicating with another computer over the telephone network

ISDN terminal adapter (TA): a specialized gateway for ISDN

Line Driver: a device to increase transmission distance by amplifying the signal. Base-band networks only.

See also

Node (networking)

Retrieved from http://en.wikipedia.org/wiki/Computer_networking_device

End of Wikipedia content, http://en.wikipedia.org/wiki/Computer_networking_device

Content derived from Wikipedia article on Networking Hardware

Networking hardware

From Wikipedia, the free encyclopedia

Networking hardware typically refers to equipment facilitating the use of a computer network. Typically, this includes routers, switches, access points, network interface cards and other related hardware.

The most common kind of networking hardware today is copper-based Ethernet adapters, helped largely by its standard inclusion on most modern computer systems. Wireless networking has become increasingly popular, however, especially for portable and handheld devices.

Other hardware prevalent within computer networking is datacenter equipment (such as file servers, database servers and storage areas), network services (such as DNS, DHCP, email etc) as well as other specific network devices such as content delivery.

Other diverse devices which may be considered Networking hardware include mobile phones, PDAs and even modern coffee machines. As technology grows and IP-based networks are integrated into building infrastructure and household utilities, network hardware becomes an ambiguous statement owing to the increasing number of """'network capable"""' endpoints.

References

NSRC Information on network hardware

USF Explanation of network hardware

Whatis.com Section on network hardware [1]

Retrieved from http://en.wikipedia.org/wiki/Networking_hardware

End of Wikipedia content, http://en.wikipedia.org/wiki/Networking_hardware

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Web Resources for Networking & Communication Hardware

Networking & Communication 

• Modems

·         Modem Site – Info & Support

·         How Modems Work from How Stuff Works

·         Modem Help

·         Cable Modem Help & Resources

·         How Cable Modems Work from How Stuff Works

·         Cable Modem Resources on the Web - MIT

·         Cable Modem - DOCSIS

·         Modem Resources from Rosenet

·         Cable Modems Reference Guide – Cable Modems.org

•   Network Hardware

·         Networking Hardware Links & Resources

·         Network Hardware News & Resources from Enterprise Networking Planet

·         Network Hardware News from Info World

·         Networking Hardware Listing from Business.com

 

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