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A computer network it a set of equipment and software connected to each others by means of physical devices that send and receive data , with the purpose of sharing information ,resources and offering services.

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The client is an application or device that accesses the sevices of another computer known as a server, usually throught a coputer network .

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Servers provide services to other connected computers,such a selling gods online or providing then with weather information .A servers responds to client request.

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is a number that identifies divice on a network. IP stands for " internet Protocol", which is a set of rules that devices use to communicate with each other. It is similar to a home address.

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ARPANET was a computer network create on behalf of the United States department of defense for use asa means of communication between universities and government institution.ARPANET is considered to be a network that gave rise to the internet

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A DNS is like a phone book for computers.The DNS looks up urls and finds their IP address.For example, if Tbox planet's address is 216.58.219.164 people arrive at this side by entering www.TBoxplanet.com and not the IP address.