In this video Mrs. Deepika Shrivastava, Asst. professor, Biyani Group of Colleges is explaining that when multiple devices are connected together to share information, then that whole system is known as computer network. When a host on network A wants to send data to host on network B, then it sends its data to the server of network A, from there, data is being routed to server of network B through router, and then finally server of network B transfers data to destination host . There are several networking devices used at different layers of OSI model.
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