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A modem (modulator-demodulator) is a device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information. The goal is to produce a signal that can be transmitted easily and decoded to reproduce the original digital data. Modems can be used over any means of transmitting analog signals, from driven diodes to radio.

The most familiar example is a voice-band modem that turns the digital data of a personal computer into modulated electrical signals in the voice-frequency range of a telephone channel. These signals can be transmitted over telephone lines and demodulated by another modem at the receiver side to recover the digital data.

A router is an electronic device that interconnects two or more computer networks, and selectively interchanges packets of data between them. Each data packet contains address information that a router can use to determine if the source and destination are on the same network, or if the data packet must be transferred from one network to another. When multiple routers are used in a large collection of interconnected networks, the routers exchange information about target system addresses, so that each router can build up a table showing the preferred paths between any two systems on the interconnected networks. A router is a networking device whose software and hardware are customized to the tasks of routing and forwarding information.

There No Such Thing As A Dumb Question,The Only Dumb Question Is No Question :welcome:

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Hello IDKWatMNShouldBe:

The simplest answer without technical jargon is as follows:


It is a
entry point your ISP uses either with telephone line or cable, likewise
there's only one exit i.e. connection to one system (strictly speaking about modem)


It could only be wired or a combination of wired+wireless, you connect it via Ethernet cable to modem, this will facilitate as many wired+wireless connections as required, normally limiting to four wired but theoretically 250 wireless connection depending on available bandwidth/bit-rate for good connectivity, it also depends whether it is a/b/g/n quality


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ok im confused on what one does what...

isnt the router that holds ur network? because when i unplug my router it says there is no network...

That is correct. The modem is not wireless so your wireless computers cannot find it. A router is able to broadcast wireless signals that your computer(wireless)can find. Much like a radio tower anything that has the capabilities can locate the signal. The router will then direct the signals to your modem via an ethernet cable and then through your isp.:D

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