If you’ve ever wondered what the difference is between a modem and a router, you’ve come to the right place because we’ll be clearing up the confusion. These two are essential when setting up Internet in your home or office.
This article will review the main differences between a router and a modem so you know which one to choose based on your Internet needs. Keep reading to know more.
Explaining the difference between a modem and a router
Many think that a modem and a router mean the same thing, but that is far from true. These are two independent devices, each with a different role to play on a network.
Understanding modems
To start, if you want internet in your home, you must have a modem. This device receives a signal from your Internet service provider each time you sign up for an Internet subscription. To understand why a modem is a critical component in a network, it is necessary to understand what a signal is and its function in a network.
A signal, in simple terms, is an electromagnetic wave that transmits data from one device to another. Two main signals are transmitted between devices and the Internet: an analog signal and a digital signal.
While the Internet transmits analog signals, digital devices such as phone, computer, and tablet can only decode digital signals. To access the Internet, you will need a device to convert the analog signals you receive from your provider into digital signals that your computer and other digital devices can understand. And that’s where the modem comes in.
A modem demodulates incoming analog signals into digital signals so your computer can understand them. It also modulates digital signals transmitted from your computer to analog signals to allow data from your computer to be sent over the Internet. That is why the modem is also called a modulator-demodulator.
Most modems have three ports: one that connects the device to the Internet, another to the power supply, and one to the router.
Understanding routers
As the name suggests, a router is a device that routes or distributes your Internet connection to all devices connected to the network. This includes computers, tablets, phones, smart home devices, etc.
Typically, a router connects to the modem using an Ethernet cable. Without it, you will need to connect your device directly to the modem using an Ethernet cable to access the Internet. This can be quite inconvenient because it will immobilize devices such as mobile phones and computers.
When multiple devices are connected to the same router, they form a network called a Local Area Network (LAN). With multiple devices connected and needing to communicate, a router requires a mechanism to identify each device on the network. And that’s where an IP address comes into play.
An IP address is a unique number that identifies each device on the network, helping the router distribute the Internet signal correctly. With addressing, you can control each device’s network properties, such as access and bandwidth, through your router settings.
A typical router will have one switch and multiple ports so all of your devices can connect to the Internet. Technically you don’t need a router if you have a device on your network. Instead, you can connect the network cable from that device to the modem and directly access the Internet. However, this is not usually the case because a home or office network comprises several devices that need to access the Internet.
There are two main types of routers: wired and wireless. A wired router must be connected to your computer and other devices via an Ethernet cable to transmit the network signal.
On the other hand, a wireless router uses a built-in antenna to wirelessly transmit the network signal to other devices.
Router vs. Modem: Network Structure
A modem connects you to the wide area network (WAN) or the Internet. On the other hand, the router is what connects your local devices so that they can communicate and collectively form what is called the Local Area Network (LAN).
Modem vs. router: which one do you need?
Well, there’s no easy way to know which of these devices you need without first analyzing your specific Internet needs. For example, if you only have one device that needs Internet access, you technically don’t need a router. However, if you have multiple devices and want them all to connect to the Internet, you will need a router.
So, it’s safe to say that you need both a modem and a router if you want Wi-Fi in your home. Having both allows you to connect multiple devices to the Internet.
If you find it difficult to choose between these two devices, don’t worry. After all, most Internet service providers will provide you with a device that serves as a router and modem or commonly known as a modem router combination.
Should I buy a router and modem separately?
Most Internet service providers recommend that you use a modem-router combination. It’s easy to install, takes up less space, and makes them more profit because they can rent it to you. However, there are trade-offs. For example, the router component of the combo is less powerful and has fewer features than a standalone router. As a result, your network will be slow.
From an economic point of view, it is recommended to purchase a router and modem separately. Having both provides better internet connectivity and rarely breaks down. If so, they are easy to troubleshoot and fix.
Another advantage of purchasing a router separately is that you can keep the device if you ever decide to move.
Modem and router never mix the two again
As you can see, a modem and a router are two separate devices, each with a different function to perform on the network. Choosing between a router or a modem depends on the number of devices you want to connect to the Internet. A modem should be enough if you want a device to connect to the Internet. However, if you need multiple devices connected to the Internet, it is best to also purchase a router.
Typically, your Internet service provider will provide you with a gateway (a device that acts as a modem and router) so you don’t have to purchase the two separately. But again, purchasing a router and modem separately will give you more flexibility and a better Internet connection.
Do you use a modem router combination or do you use the two devices separately? What has your experience been like using the two network devices? Share your thoughts with us in the comments p below.
