22 Facts About Computer network

Computer network is a set of computers sharing resources located on or provided by network nodes.

Nodes of a computer network can include personal computers, servers, networking hardware, or other specialised or general-purpose hosts.

Computer network extends interpersonal communications by electronic means with various technologies, such as email, instant messaging, online chat, voice and video telephone calls, and video conferencing.

The overlay Computer network has no control over how packets are routed in the underlying Computer network between two overlay nodes, but it can control, for example, the sequence of overlay nodes that a message traverses before it reaches its destination.

Transmission media used to link devices to form a computer network include electrical cable, optical fiber, and free space.

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Network bridges and Computer network switches are distinct from a hub in that they only forward frames to the ports involved in the communication whereas a hub forwards to all ports.

The vital role firewalls play in Computer network security grows in parallel with the constant increase in cyber attacks.

Nanoscale Computer network has key components implemented at the nanoscale, including message carriers, and leverages physical principles that differ from macroscale communication mechanisms.

Personal area network is a computer network used for communication among computers and different information technological devices close to one person.

Local area network is a network that connects computers and devices in a limited geographical area such as a home, school, office building, or closely positioned group of buildings.

Home area network is a residential LAN used for communication between digital devices typically deployed in the home, usually a small number of personal computers and accessories, such as printers and mobile computing devices.

Storage area Computer network is a dedicated Computer network that provides access to consolidated, block-level data storage.

Campus area Computer network is made up of an interconnection of LANs within a limited geographical area.

Example, a university campus Computer network is likely to link a variety of campus buildings to connect academic colleges or departments, the library, and student residence halls.

Backbone network is part of a computer network infrastructure that provides a path for the exchange of information between different LANs or subnetworks.

Example, a large company might implement a backbone Computer network to connect departments that are located around the world.

Metropolitan area network is a large computer network that usually spans a city or a large campus.

Wide area network is a computer network that covers a large geographic area such as a city, country, or spans even intercontinental distances.

The data link layer protocols of the virtual Computer network are said to be tunneled through the larger Computer network when this is the case.

Global area Computer network is a Computer network used for supporting mobile across an arbitrary number of wireless LANs, satellite coverage areas, etc.

An extranet is a Computer network that is under the administrative control of a single organization but supports a limited connection to a specific external Computer network.

Darknet is an overlay Computer network, typically running on the Internet, that is only accessible through specialized software.