Wifi is one of the devices used for the internet. Wifi devices are usually installed in homes, offices, public places, shops, places of worship, and so on. Cheap broadband Wifi deals will greatly facilitate us in accessing the internet.
You must be familiar with the term WiFi, especially if you are a person who spends a lot of time with smartphones. Yes, for most people, smartphones, and WiFi are like daily necessities that are hard to leave.
However, it is undeniable that the existence of WiFi plays a very important role in today’s human activities. Work, teaching, and learning activities, to fill spare time, all of them take advantage of WiFi facilities a lot.
WiFi itself is a wireless networking technology that allows devices such as computers (laptops and desktops), mobile devices (smartphones and wearables), and other equipment (printers and video cameras) to interact with the Internet. This allows these devices to exchange information with each other, thus creating a network.
Internet connectivity occurs through a wireless router. When you access WiFi, you are connected to a wireless router that allows your WiFi-compatible device to interact with the Internet.
After getting to know what WiFi is, we will also discuss how WiFi works and also functions in this article, which we have quoted from several sources.
How WiFi Works
Although WiFi is usually used to access the internet on portable devices such as smartphones, tablets, or laptops, in reality, WiFi itself is used to connect to routers.WiFi is a wireless connection to a device, and not the internet itself. It also provides access to the local network of connected devices, which is why you can print images wirelessly or view video feeds from a WiFi-connected camera without needing to be physically connected to them.
Instead of using a wired connection like Ethernet, WiFi uses radio waves to transmit information on specific frequencies, usually at 2.4GHz and 5GHz. However, there are many others that are used in more specialised settings. Each frequency range has multiple channels that wireless devices can operate on, which helps spread the load so that individual devices don’t see their signal overcrowded or interfered with by other traffic.
The typical range of standard WiFi networks can be up to 100 meters in the open air. However, buildings and other materials reflect the signal, making most Wi-Fi networks much narrower than that. Usually, a span of 10-35 metres is the most common. Antenna strength and broadcast frequency can also affect the effective coverage of a network. Higher frequencies such as 5GHz and 60GHz have a much shorter effective range than 2.4GHz.
To Connect Device to the Internet
The first WiFi function is to connect the device to the internet network. WiFi can connect electronic devices such as PCs, laptops, or smartphones that are compatible with WiFi to the internet network without the need to use cables, making it more practical and faster.
Sharing Files or Data
The second function of WiFi is to help share files or data. Devices that support WiFi allow it to be able to share files or data more easily without the need for cables.
Connecting Between Devices
The third WiFi function is to help connect one device to another. With the presence of WiFi, you can connect your smartphone to a computer or laptop device without the need to use USB, but with the condition that both devices must support wireless devices.
Modem from Mobile
The last function of WiFi is that it can make your smartphone act as a modem. Not only as a WiFi signal receiver, but your smartphone can also be a portable modem, or a radio signal transmitter or hotspot. So, if it is connected to another device that is compatible with WiFi, then that device can access the internet.