12 Facts About Computer networks

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

Computer networks networking was influenced by a wide array of technology developments and historical milestones.

Computer networks 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.

Overlay networks have been around since the invention of networking when computer systems were connected over telephone lines using modems before any data network existed.

Overlay Computer networks have been proposed as a way to improve Internet routing, such as through quality of service guarantees achieve higher-quality streaming media.

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Apart from any physical transmission media, Computer networks are built from additional basic system building blocks, such as network interface controllers, repeaters, hubs, bridges, switches, routers, modems, and firewalls.

In packet-switched Computer networks, routing protocols direct packet forwarding through intermediate nodes.

In large Computer networks, the structured addressing used by routers outperforms unstructured addressing used by bridging.

An intranet is a set of Computer networks that are under the control of a single administrative entity.

Darknets are distinct from other distributed peer-to-peer Computer networks as sharing is anonymous, and therefore users can communicate with little fear of governmental or corporate interference.

When Computer networks are congested and queues become too full, packets have to be discarded, and so Computer networks rely on re-transmission.

Computer networks are used by security hackers to deploy computer viruses or computer worms on devices connected to the network, or to prevent these devices from accessing the network via a denial-of-service attack.