What is WiFi and what is the history of this technology

Do you know what WiFi is and what is the history of this technology? Although it has been many years since the Internet has come in the world, do you know how easy it was to get Internet Connection earlier?

Internet was born from Network. The only way to send any information digitally in the past was to cables the only one way. Internet Connection was taken from Cables itself. But you must know that we like to work with people without rest and without any hassle. I mean how could the Internet work without Cables.

Due to day to day changes, Computer Scientist finally created an AC Wire Less Technology called WiFi. Nowadays everyone is fully aware of this wireless technology. New generation youth are connected to the Internet through this wireless technology. So let's see in detail what the Wi-Fi is.

  • What is Wi-Fi
  • How Wifi Technology Works 
  • History of Wi-Fi
  • Features of WIFI
  • Advantages of WiFi in Hindi
  • Disadvantages of WiFi
  • What is Wi-Fi 6?
  • Why is Wi-Fi 6 designed?
  • How fast is WiFi 6?
  • What have you learned today

What is WiFi?

The full name of WiFi is Wireless Fidelity. It is a popular Wireless Networking Technology. There is an AC technology, through which we are using the Internet and Network Connection today.

Now understand in your easy language, this is the technology through which we are getting the facility of the Internet in our smartphones, computers, laptops in a wireless way.

What is WiFi and what is the history of this technology

Through this, we and you can connect to the Internet within the confined space. Nowadays, everyone has Internet access through WiFi and simultaneously transmits data wirelessly as you do with Share it and Xender. WiFi has emerged from the wireless as well as Hi-Fi word.

Below is an example of WiFi Standard, which will be understood when you discuss the history further.

IEEE 802.11a: - was built in the year 1999 by IEEE, which worked at 54 Gbps speed up to 115 fits at 5 GHz.

IEEE 802.11b: - It was built for domestic use in 1999, which worked at 11 Gbps speed up to 115 fits at 5 GHz recurring.

IEEE 802.11g: - was built in the year 2003 by combining 802.11a and 802.11b, which worked at 54 Gbps speed up to 125 fits at 2.4 GHz.

IEEE 802.11n: - It was created in the year 2009 to work on both 2.4 GHz and 5 GHz Recurring Router. Its data sending speed worked up to 54 Mbps and 230 fits.

IEEE 802.11ac: - It was built in the year 2009, which worked up to 115 fits at a speed of 1.3 Gbps on 5 GHz recurring.

WiFi is a standard. Following the standard, we connect computers to a wireless network. As of now, there are as many Smartphone, Laptop, Printer, and Computer. All of them have a WiFi chip. Through which we and you connect to the Wireless Router and use the Internet.

Once wifi is enabled, once you connect to the wireless router, you can access the internet. But the Router also has to use DSL and Cable Modem to stay connected to the Internet. Otherwise, Internet Access is not there.

WiFi is similar to Hi-Fi, whose full form is High Fidelity. The full form of WiFi is not wireless Fidelity, it is just a name. Selected by the WiFi Alliance. It is also known as WLAN.

It uses Technology Radio Waves. You roam the Internet while roaming. Now let's know how Wifi Technology works.

What is the full form of WiFi?

The full form of WiFi is Wireless Fidelity.

Who invented WiFi?

Wi-Fi was invented by John DeSullivan and John Deane in 1991.

History of Wi-Fi

WiFi was born in 1985. When the United States FCC announced that Wireless Frequency 900MHZ, 2.4 GHz and 5.8 GHz anyone can use it without License. Then its history was started.

Sayed, you would not know these bands were used in domestic appliances like Microwave. Therefore it was believed that they have no use. Especially there is no use in communication. Therefore, to make this band usable, the FCC made it mandatory to use it. Named Spread Spectrum Technology.

The license of Spread spectrum technology was taken in 1941. George Antheil and Actor Hedy Lamarr were to take the license. This was the technology through which signals were sent with multiple frequencies. Nothing should happen with this change, but after this technology, there was a lot of improvement in wireless signals after this technology.

This technology failed to solve Interference Problems. Because at that time there was already Radio Install in Mobiles. Due to which the quality of Signals was greatly affected.

At the same time, technology was emerging, named WLAN (Wireless Local Area Network), which had a lot of technical problems. As such, there was no standard of WLAN. Many problems had to be faced in connecting devices of different companies.

In 1988, the then NCR Corporation required a wireless Cash Register. That is why he, with the cooperation of Victor Hayes and Bruce Tuch, attempted to make the Institute of Electrical and Electronics Engineers (IEEE) a standard. In 1997, the standard was fixed and the name which was quite attractive was "802.11". It was published in 1997 itself.

At that time the speed of DATA Transfer in 802.11 Standard was around 2 megabits Per Second. In 1999, 802.11a was published. Whose speed were around 54 Megabits Per Second? It was quite expensive, so its next version was published, which was named 802.11b, it was launched by WiFi Technology, this version was cheaper and the range of this network was also much higher.

802.11b In a very short time, due to being popular, there was a kind of fence of Wireless Technology. It had established its position in the hardware market very fast. Due to the range and compatibility it was quite famous.

For this reason, 6 companies got together and formed a Wireless Ethernet Compatibility Alliance, or WECA. Through which it was tested whether there is WiFi Compatibility.

In 2002, he derived the words Wi-Fi, Wireless and, a word HiFi. The name of which came to be known after a few years from the Wi-Fi Alliance. Now you must understand what is the history of WiFi.

How Wifi Technology Works

Nowadays everyone is using WiFi. Whether it is in the office or at home or in the hostel, but nobody knows how this technology works. To use this technology first, we need an Electronics Device.

Which is called Wireless Transmitter / Hub / Router. This creates the Device WiFi Network. It receives information through the Wireless Device (Router), Broadband connection. Now there are some components inside it.

Which converts this information into Radio Waves. This device emits these Converted Waves outside. A small area of ​​Wireless Signals is formed through this process. Which we call WiFi zone.

This small area takes the form of a WLAN (Wireless Local Area Network). All the devices in this small area such as Smartphone, Laptop, Printer, if all of these devices have a built-in wireless adapter. With the help of which can easily get WiFi Signal.

One thing to remember if a mobile phone is connected to WiFi. Understand that the device has a wireless adapter. Due to not being strong Radio Signals, the distance of this network remains limited. Like inside and around a house, to the side of the road. It means its range ranges from 10 to 20 meters.

Radio Waves can easily go beyond the wall. For this reason, the facility of the Internet is also available in nearby rooms. However, a wireless router is enough for a house. The more Router you go to the Internet, the faster the network will run, the stronger it will be.

When you send some information (Text, Image, Audio, Video) back to the Wireless Transmitter / Router, the same process will run opposite. As you are connected to WiFi, I mean your mobile. EX- You have sent text messages to your friend.

It converts to Radio Waves before exiting Message Mobile and after reaching the signal to Transmitter / Router. Transmitter / Router text is converted into signal and transmits to Broadband and in that the address of Receiver is there. You must have known, this is how WiFi works.

Important Information - There are some devices like Mobile, Laptop, and Tablet in which the Wireless Adapter is already inside. That is why most of the smartphones get Internet access from WiFi. There are some things like Desktop, they do not have a wireless adapter.

That is why they have to buy a wireless card or Adapter. Which is then inserted into the USB port of the desktop. Which we can also access in Desktop.
What is WiFi and what is the history of this technology

Features of WIFI

We also have many other ways that we can use the Internet, but the question is whether there are such features for which this technology is special, so let's know what is special about friends.

1. Efficiency

: When technology is not proficient in anything, we cannot call it efficient. Everyone nowadays uses the cellular network for the Internet. But you do not know the area of ​​the cellular network is high.

But when you live in a moving vehicle, then you use the Internet, but you are often connected to different networks. This is why the energy of your mobile is more exhausted. Now energy can be called battery or charge.

But if we talk about WiFi then it uses Radio Waves. The Electronics Device you need for this is the Router. You can use the Router for less distance and offers a lot of high-speed Net service. In this, the charge of your smartphone is also less.

2. Accessibility

: All the Network Provider Company. Compare them with a cheaper plan that no one else can give you. Any data stored in the mobile plan is in some GB. If we talk WiFi, then you can get a 50 GB plan in it and more.

You do not need to spend as much as DATA in it. But the plans of companies like Sim like GrameenphoneBanglalink, Airtel, Robi are limited.

If you use more than the limit in the mobile network, then the money is cut from the main balance. In mobile, you have to think every time which video to watch and which one to watch. Just keep you focused on data saving. In terms of network access and data, wifi is most accurate.

3. Speed

: Comparison of the speed of the Internet in a WiFi network. If we do Mobile Mobile with Speed, then this speed of WiFi is much higher. If you are reading some mail in the Mobile Network and reading the Online Book Book, then the speed of mobile is largely fine.

When talking, there is nothing faster than Wi-Fi in video and audio downloading.

Live streaming if you are doing it from your mobile. Just waiting for loading in mobile. No one can compete with WIFI in speed. The speed is approximately 1mbps to 100 Mbps.

4. Cost

If it is calculated, then it is common to have a bill of 1 lakh. If you take a WiFi connection at home, then you will get a very cheap plan at a low cost.

Whose family you can not use alone. Due to being cheap, in Hostel, College, School, Office Vagera, use this cheap Internet Connection. You can also minimize the bills of your mobiles through online video calling and voice calling.

Therefore it is cost-effective and money-saving. Let us now know about its advantages and disadvantages.

Advantages of WiFi


This technology is quite user-friendly. You can easily connect any smartphone, tablet, and laptop with wifi when it should be in the range of device wifi.


It is very easy to use it, you just have to turn on wifi. If there is a password. Enter the password and connect. Enjoy the Internet.


Mobility means you can access the Internet from anywhere on the go. Such as Bus, Train, Coffee shop, Super Market where it is Network.


With a single WiFi device, you can connect many other mobile devices. For example, 5 to 6 mobile devices can connect with a Router. It takes you very little time to do this connection.


As you know it is very easy to access WiFi and its range is also fixed. Its speed is in Mbps. That is why it is used in other works. Just like File Sharing (Text, Audio, Video), you do in the File Sharing app.

Cost Control

If a lot of users are already connected to WiFi and you want another device to be connected as well. For this, you do not need to spend anything more and do not need any Cables. Now talk about Broadband Connection, then you need more Cables and Reconfiguration.


The most special and necessary benefit is quite standardized. Meaning a WiFi Router can run in all countries of the world.

Disadvantages of WiFi

Performance / Speed

You will find WiFi with Gigabit Speed ​​in the Market, but Gigabit Speed ​​is not available in every location. But Gigabit Speed ​​is available in Cables.

Connectivity / Reliability

This is the Medium dependent network. This means that the strength of the wifi signal decreases after crossing any wall. You know the fixed range of WiFi remains.


You can access WiFi in a fixed location. The smaller the strength of the network, the less power will go away. Like 10 meter to 20 Meter will have to remain within.


Nowadays, anyone can enter your system via WiFi and steal your data. So this is the biggest loss of this technology.

What is Wi-Fi 6?

Wi-Fi 6 is Next Generation Standard of WiFi technology. and Wi-Fi 6 is also called "AX WiFi" or "802.11ax WiFi". It has been built by further improving the Mezhuda 802.11ac WiFi standard.

It would not be wrong to call Wi-Fi 6 the fastest WiFi of all time. If you do not have the information about WiFi's new technology WiFi 6 these Hindi people, then you should tell people that this is a big revolution in the world of wireless technology. WiFi 6 is also everyone known as "AX WiFi" and "802.11ax WiFi".

As I have said before, this current 802.11ac WiFi standard has been made by bringing needed improvements. Originally, WiFi 6 was created in response to the increasing number of devices in the world.

Wi-Fi standardWi-Fi name
802.11nWi-Fi 4
802.11acWi-Fi 5
802.11axWi-Fi 6

If seen, there is an upgrade update for the WiFi 6 WiFi router or the normal WiFi service upgrade. For example, if you have a VR device and many smartphone home devices, then WiFi 6 router can prove to be a very good WiFi router for you.

Why is Wi-Fi 6 designed?

Wi-Fi 6 is designed to improve the speed of the Wii, to increase efficiency and to reduce the congestion in conjunction with heavy bandwidth usage.

How fast is WiFi 6?

The theoretical speeds of WiFi 6 or 802.11ax are around 10Gbps. At the same time, it also has a very low power consumption with speed.

It has a higher speed because 2.4GHz and 5GHz spectrum bands are combined on it. Where previously both bands in 802.11ac and 802.11n (or Wi-Fi 4) were forced to work separately, but in this new standard both are used together.

MU-MIMO technology will now also be enabled for uplink data with downlink data which is used to support earlier.

After the arrival of WiFi 6, there will be a lot of difference in the world of wireless technology. The world Wide of the Internet will change to a great extent.

what did you learn today

It is my endeavor that we always get right, honest and complete information from you. Today you have learned what is WiFi and what is the history of wifi technology. If seen, the advantages and disadvantages of wifi are huge. In addition to the wifi, the new technology is coming up like LiFi.

I hope you are like this article "What is WiFi and what is the history of this technology"? Tell us your opinion in the comment below. If you still have any questions you want to ask, then do write in the comment box below. If you want to give any suggestion or advice, then also give it which is going to be very useful for us later.

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