A modem is a peripheral device that connects your computer to the internet. A router collects the information supplied by the modem and connects it to all the devices connected to that network. The modem supplies the information from the internet, and the router distributes that data to all the PCs and phones. So though they work hand in hand to connect you to the internet, they are two separate entities.
The similarities among the two computer peripherals are:
· These are both plastic devices of almost the same size and shape
· They signal flashing lights when operating. They have jacks and plugs at the back.
· Both the devices are connected to the computer
Difference between a router and a modem:
Functions and use:
A modem connects the computer or the entire computer network to the Internet service provider. A router connects all the computers to each other in LAN and to the modem. So the modem brings in the information from the internet, and the router transmits it to all the devices in the network.
A modem connects to one device. It could be the PC or the router. And at the other end, the modem connects to the ISP, which provides the DSL or cable connection. The cable has a coaxial connection that connects to the cable port on the wall. The DSL modem has a telephone connector called RJ- 11 jack. It connects to a telephone socket in the wall. A router connects to various devices on a network using Ethernet cables or WiFi connections. All the devices connected to the router have a separate local IP address and carry the same external IP address which is assigned by the ISP (internet service provider).
A modem just transmits the data it receives from the ISP. It does not screen the data, which could be a security issue for the connected devices. They examine all the data they receive and then transmit them to the desired location. Thus, the routers contain firewalls to screen the information against potential threats.
Modern routers are advanced and provide wireless connectivity. These wireless routers either one or two antennas on the sides or they are embedded internally. These wireless routers can connect multiple gadgets like smartphones, tablets, and computers in a single network. The early models of routers had Ethernet Ports for wired connections. Modems are available in wired and wireless models.
The working of the router and modem in sync:
The PC/computing device is connected to the router. The router gets all the information from the modem. The modem is connected to an ISP which establishes the internet connection. The modem brings in Google, YouTube, and other internet data from all over the globe. The modem can be directly connected to the computer for accessing all the data.
If there are multiple gadgets that you want to connect to the internet, a router has to be installed. A router takes digital signals from the modem and transmits it to all the computing gadgets in the house. Routers are intelligent pieces of the device that scan the data which they receive. Therefore, they can prevent unsafe and risky data from reaching your system. Routers can connect to multiple computers and gadgets, which modem connects to a single computer.
The routers provide safety by altering the IP address on the computer. This prevents the risk of hacking. Unauthorized computers that do not have access to the IP address will be unable to connect to the network. A wireless router connects all the electronic wireless devices to the network. The connection must be secure so that the iPad, laptop, smart phones are other connected devices are not at a risk.
The role of an IP address is a significant one. The IP (Internet Protocols) addresses are guidelines that allow transmission of data through the router and the modem to a particular location. It provides the authorized user with the specific information it requested for.
A router can connect the computers on a LAN, but it will not give access to online data. A modem has to be installed for online connectivity. The router establishes the connection among various devices in a network and provides secure and safe data transmission. Hybrid devices are available these days that combine the router and the modem into one. These features are provided by ISPs to make connectivity issues simple and hassle-free.