It’s a group of computer system and other computing devices that are linked together through communicating channels to facilitate communication and resources it’s the thing that connects all that links all together . There are three types of networks .
LAN : local area network that is just a small part fo a network that cover only one house or a small area . 
MAN: Metropolitan área network it’s cover a city or a metrópoli 
WAN:Wide área network  it’s the entire part of a network it cover a lot of cities even a entire country because it use wan and lan to connect all together .

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