The main purpose of a network is facilitating communication and information-sharing between network-enabled resources (e.g., workstations, servers, and other network devices).
The NIC (network interface card or network interface controller) connects a device to the network. Most modern PCs and laptops have a built-in NIC, and most of them are compatible with RJ45 (Registered Jack 45) connectors. Network cables and patch cords are used to connect a computer to a switch or to interconnect other network devices (e.g., switches, routers, firewalls, etc.). Common network cables are either copper or fiber-optic (FO) based.
Hubs are . . .
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