. Stands for Modulator and Demodulator.
. Used for data transfer from one computer network to another computer network through cables.
. Used for data transfer from one computer network to another computer network through cables.
Why Modems?
. Computer network works in digital mode but data is carried in analog mode.
. So data must be converted into analog before sending and digital before using.
. This is done by Modems.
. At transmitter, it works as Modulator.
. At receiver, it works as Demodulator.
Modems and Routers:
. Modems are connected to routers to create local area network to connect devices.
. Router passes internet connection to all the devices in the network.
. We don't need a router if we want internet connection to single device.
. Router serves as wireless access point so that internet connection is distributed to devices like phones, tablets through wifi.
. A modem/router would have modem with builtin router in a single device.
. Router passes internet connection to all the devices in the network.
. We don't need a router if we want internet connection to single device.
. Router serves as wireless access point so that internet connection is distributed to devices like phones, tablets through wifi.
. A modem/router would have modem with builtin router in a single device.