What is WIFI and How Does it work? Full Information 2021

What is WIFI and How Does it work? Full Information 2021

Friends, today we will know what is WIFI. Friends, nowadays everyone is using WIFI technology. But have you ever wondered what is WIFI and how it works, if not today I will try to answer all your questions through this blog. So first of all, know what is WIFI?

What is WIFI

Wi-Fi is a wireless networking technology that allows computers (laptops and desktops), mobile devices (smart phones and wearables), and other devices such as printers and video cameras, etc. to interface with the Internet. This allows these devices to exchange information with each other by creating a network.

Internet connectivity is through a wireless router. When you use WIFI, you are connected to a wireless router, which allows your WIFI compatible devices to interface with the Internet.


How does WIFI work?

WIFI works in the same way as other wireless devices – it uses radio frequencies to send signals between devices. Radio frequencies are completely different from walkie talkie, car radio, cell phone and weather radio. For example your car receives frequencies in the stereo kilohertz and megahertz (AM and FM stations) range, and WIFI transmits and receives data in the GHz range.

Suppose you are standing on a seaside, with waves coming. As you look at the waves, you can see the smaller of each wave. If you look at these waves carefully, you will find thousands of small waves in between each of the big waves. These are called the frequency of waves. If the distance between these waves is taken as 1 second, it would mean that the wave frequency was 1 Hz or one cycle per second.

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If we compare sea waves with MHz and GHz, these waves move at the speed of 1 million and 1 billion cycles per second, And to get the information found in these waves, your radio receiver needs to be set to receive waves of a certain frequency.

For WIFI, this frequency is 2.4Ghz and 5Ghz. These waves are similar to the frequency found in your microwave. Your microwave uses 2.450Ghz to heat food. And the router uses 2.412 GHz to 2.472 GHz to transmit your data over WIFI. This is why your WIFI signal experiences a problem when cooking anything in an old-fashioned faulty microwave.

What does WIFI work?

Although Wi-Fi is commonly used to access the Internet on portable devices such as smartphones, tablets, or laptops, Wi-Fi is actually used to connect to routers or other access points, which Provides Internet access in return. Wi-Fi is a wireless connection to the device, not the Internet.

It provides access to a local network of connected devices, which is why you can print photos wirelessly or view video feeds from Wi-Fi-connected cameras that require them to be wired Is not.

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Instead of using a wired connection such as Ethernet, Wi-Fi uses radio waves to transmit information at specific frequencies, most commonly at 2.4GHz and 5GHz. Each frequency range has multiple channels that can operate on wireless devices, helping to spread the load so that individual devices do not see their signal congested or interrupted by other traffic – although this happens on busy networks.

What is the range of WIFI?

The range of a standard Wi-Fi network can reach 100 meters in the open air. However, buildings and other materials reflect signals, but make most WIFI networks much more narrow than this. Typically, ranges of 10–35 meter are more common. The strength and frequency transmission of the antenna can also affect the effective range of the network. Higher frequencies such as 5GHz and 60GHz have much lower effective ranges than 2.4GHz.

Everyone within a network range and a compatible Wi-Fi device can detect the network and try to connect it. This is why it allows it to work in both private and public settings, but it raises concerns over security. This is why standards like WPA, WPA2 and WPA3 exist and if you think someone can connect to your network, you can change your password.

What is Wi-Fi 6 802.11ax?

Wi-Fi 6 is the next generation wireless standard that is faster than Wi-Fi 5 802.11ac. It also provides high speed in more congested areas, stadium or places where there is a lot of traffic. Apart from this, it is even more beneficial which is as follows.

  • Reliability: Provides a reliable network connection for a seamless experience.
  • Lower latency: With this technology, the transmission of data will be more rapid without any hindrance.
  • Capacity: Transmits more data to more customers than previous Wi-Fi standards, including IoT. This is achieved at four times faster than 802.11ac for running more applications.
  • Higher speeds: Wi-Fi 6 significantly improves data transfer speed when connected to a device. It is up to 60% more advanced than the other versions. It is designed to be used in crowded places. Where many people can be on the same network, so you will see a huge improvement in public Wi-Fi, especially in congested areas.
  • Better battery life: Wi-Fi 6 is a very good technology for mobile battery life. Because when we use public WIFI, the connectivity has to be changed by changing the location, which increases the consumption of battery. Whereas it installs connectivity with other networks very easily. The best example of this is the inverter AC.

What are the different versions of Wi-Fi?

So far 6 versions of Wi-Fi have been released. Of which, we know the latest Wi-Fi 6 version called 802.11ax. All the versions now released are as follows.

  • WIFI 1: 802.11b was released in 1999.
  • WIFI 2: 802.11a was also released in 1999.
  • WIFI 3: 802.11g was released in 2003.
  • WIFI 4: 802.11n was released in 2009.
  • WIFI 5: 802.11ac was released in 2014.
  • WIFI 6: 802.11ax was released in 2019. And it is more modern than other WIFI version.

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FAQs related to Wi-Fi

1. What is WIFI?
Ans: Wi-Fi is a wireless networking technology that allows computers, laptops and mobile devices, etc. to interface with the Internet.

2. What is the full form of WIFI?
Ans: WIFI has Full Form Wireless Fidelity.

3. Who invented WIFI?
Ans: WIFI was invented by John O Sullivan in 1991.

4. What is the range of WIFI?
Ans: The range of Wi-Fi networks can be up to 100 meters in open air. Typically, ranges of 10–35 m are more common.