Mostly all Internet service providers offer hire or purchase in installments of their modem to be able to browse immediately without having to procure a separate device. These modems often have a big cost. Obviously, if you can avoid this expense, you should take a separate modem with the features you want, too bad that you often find the words “modem / router” or just “router”, without further explanation.
Before proceeding with the purchase, it is essential to understand what a modem is and the difference between modem and router , otherwise you risk making mistakes to buy wrong device. In this guide you will look at the actual differences between modem and router and why you can find both present in the same device.
The modem communicates with the external network of the Internet provider (for example, PTCL or Airtel) and takes care of converting the incoming signal on the telephone line (analogical type) or on fiber optic cables (of type luminous) in a binary electric signal interpretable by the devices that intend to navigate with it, obviously it also performs the inverse operation, converting the output signals into an analog signal or a light signal compatible with the lines used (ADSL, VDSL or fiber). The term in fact means modulator-demodulator, which by contraction becomes “modem”. The modem communicates with the Internet service provider and receives an IP address, which will also be used by the device connected to it.[adsense]
The router is that device that can manage multiple devices simultaneously on the same network, directed the data packets to the right destination. So a router is a completely different device from the modem. It directs an Internet signal (from the WAN or Internet port) to all connected devices, recognizable by an IP address (assigned directly by the router to each device of the internal network). Today’s typical router allows you to manage devices connected via Wi-Fi, as well as offering various Ethernet ports to connect some devices (close enough) via cable.
Many models of routers integrate the modem part inside them, allowing it to convert the signal by itself without requiring an additional device.
In this case the router is able to connect to the Internet and configure the navigation parameters by itself in most cases. You can recognize a modem router by the presence of the dedicated call port DSL, Line, xDSL or ADSL, slightly smaller than the Ethernet ports and to which we have to connect the telephone cable. So this device brings together all the advantages of the modem with those of the router, so you can use only one device.