Umi Sarina
A central device that provides a common connection point for nodes on a network.

2)Network Interface Card
A NIC (network interface card) is a piece of computer hardware designed to allow computers to communicate over a computer network.

A device that forwards data packets along networks. A router is connected to at least, two networks, commonly two LANs or WANs or a LAN and its ISP’s network.

Short for Registered Jack-45, an eight-wire connector used commonly to connect computers onto a local-area network (LAN), especially Ethernets. RJ-45 connectors look similar to RJ-11 connectors used for connecting telephone equipment.

Short for modulator-demodulator. A modem is a device or program that enables a computer to transmit data over telephone or cable lines. Computer information are stored digitally, whereas information transmitted over telephone lines are transmitted in a form of analogue waves. A modem converts between these two forms.
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