![]() To perform these operations modem connects to your ISP that provides DSL internet or cable service. Through modem digital information is encoded and decoded during transmission. It provides access to the Internet and is used to modulate signals on telephone lines. Minimum of two ports one for ISP and others to connect the routerĬan connect to one PC using Ethernet portĬan connect to networking devices or multiple PC via Wi-Fi or EthernetĪ Modem is short for modulator-demodulator and it works as a bridge between the local networks and the Internet. The router connects to the computer network via RJ45. The modem connects to a router using RJ45 and to the telephone line using RJ11. The router checks every data packet before forwarding this helps stay safe from threats.Ī modem is placed between a telephone line and a router or directly to the computer.Ī router is placed between a modem and a computer network. ![]() Router operates at the Physical Layer, Data Link Layer, Network Layer.Ī Modem does not examine data packets hence, data is at risk. The Internet can be used without using a router. The router distributes the requested information to your system.Ī modem is required to access the Internet as it connects the computer to ISP. Modem fetches requested information from the Internet to your network. The router examines the data packet and determines the path allowing it to reach the destination computer. In short, it routes data between home computers, between computers and the modem.Ī modem converts data (0 s and 1 s) computer’s digital signals into analog signals of telephone line and vice-versa. It serves two primary functions creating and maintaining local area networks & managing data transmitted and received data. This means it modulates transmissions over telephone lines to receive and transmit data.Ī router connects multiple networks. A modem is short for modulator-demodulator it allows connecting to the Internet.
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