What's the difference between a router and a modem?
A modem is simply a device for connecting to a network. The name comes from modulator, demodulator. A router is designed to direct traffic amongst multiple endpoints on a network. Home routers often have features like NAT, allowing multiple devices to share the one public IP assigned to the modem.
A modem is what connects you to the internet, usually provided by your Internet Service Provider. A router is what connects your devices to a Wi-Fi network and is plugged into the modem.
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