Wi-Fi technology is extremely popular and available just about everywhere. Whether you’re grabbing a cup of coffee, shopping for shoes, or enjoying a family pizza night, you’re likely to have a Wi-Fi hotspot available. You may hear people talking about “getting onto Wi-Fi” or not being able to “get onto Wi-Fi”. Most of the time, the issue is that they can’t get their laptop, smart phone, or other device connected to the Internet. Is Wi-Fi the same as the Internet? No, it’s not. And with home networks getting more sophisticated all the time, with more and more connected devices, it’s helpful to have a clear understanding of the difference between the two.
What is the Internet?
The Internet is a massive global communications network. In fact, as its name suggests, it’s more than just one network—it’s a series of thousands of interconnected networks. each Internet service provider (ISP) typically owns its own network. It buys and installs the specialized networking equipment that makes it possible for customers like you—in addition to businesses, universities, hospitals, and more — to connect to the Internet.
When you connect to your ISP’s network from your home or workplace, you have the ability to connect with other networks, companies, services
and individuals who are also connected to the Internet. For example, you can stream movies on Netflix by connecting via the Internet to computer servers that Netflix owns or read your email by connecting to one of Gmail’s servers. When you purchase monthly Internet services for your home, your ISP gives you all the physical equipment you need to connect your own devices to the Internet. This includes a physical line, such as a fiber optic cable, that will connect your home to the ISP’s network. Inside your home, this physical line is connected to an electronic device that’s usually called a modem.
How Do I Connect My Devices to the Internet?
With your modem providing the Internet connection into your home, there are two ways you can connect your device to the modem.
Connecting with a Physical Cable
The first method, which is not very common anymore, involves physically plugging your computer into the port on the back of your modem using
what’s called an Ethernet cable. When your computer is plugged into the modem, it becomes part of your ISP’s network, along with all the other
individuals and business customers who have also connected their devices.
Connecting Over Wi-Fi
The second method, which is the most common today, involves connecting your computer, tablet or smart phone to your ISP’s network without using
a physical wire. This “wireless” connection is made possible by Wi-Fi technology; specifically by a second device in your home called a router or sometimes referred to as a gateway. This router is physically plugged into the modem with a cable or it is combined with the modem into a
single piece of equipment.
The Wi-Fi router uses radio technology to broadcast a unique name (also known as a service set identifier, or SSID), which you or your ISP chooses
when the router is first set up. When you’re on your laptop or other device, you can see a list of other Wi-Fi routers nearby such as yours and your
neighbors’. You can select your router name from the list and enter the router’s password. And just like that, you’re connected to Wi-Fi. Since your
router is connected to your modem, you can now access any online service or go to any website using your web browser.