What is Virtual Reality and How Does It Work?

What is Virtual Reality and How Does It Work?

How is it different from the original reality? What are its different types? If you have to get information about all these things, then you will have to read this post virtual reality. Have you ever been to Mars, have ever swum with Dolphins, or have been intercepting any dinosaurs? How will it feel when you say to you that you can still do all these things, even in the same way as if you were dear to that place at that time? Through Virtual Reality, we can revive real reality again. If you want to know more about this then please stay with us.

Virtual Reality is an artificial environment that has been created with the help of software and some special hardware. So that the user gets that artificial environment completely realistic. In a computer, we experience this virtual reality, only with its two senses are those sight and sound.

Virtual reality means that the structure of a world that is imaginative on its own but seems completely realistic. For this, high-performance computers and sensory equipment, such as headsets and gloves, are used. This virtual reality is used not only in games and entertainment but also in the training of airline pilots and also in the operation of surgeons and helps scientists to understand complex problems such as the structure of protein molecules. So today I thought why you should give information about what is a virtual reality to people, which will make it easier for you to understand this technology. So let’s begin without delay.

Virtual Reality The two words are ‘virtual’ and ‘reality’. Where ‘virtual’ means near (pass) and reality means such an experience which we feel as human beings (like the truth). Therefore ‘virtual reality’ means the reality of such. This means that it is a particular type of reality emulation.

Virtual reality (VR) is a kind of experience that is experienced only with the help of computers and hardware. There is such a believable, interactive 3D computer-created world that you can both feel mentally and physically.

So let’s know some essential features of virtual reality:

1. Believable: As you believe in such a virtual world, you will not know at all whether it is a virtual reality or not.

2. Interactive: This virtual world will have to move with you so that it appears that it looks much more interactive. If it does not look very interactive then it can not be called virtual reality.

3. Computer-generated: This is very important because it is used only in powerful machines, in which the realistic 3D computer graphics is used so that it becomes so fast that it can be found in the believable, interactive, alternative world Can structure. It can easily turn it into real-time so that it seems to be even more real.

4. Explorable: A VR world should be large and detailed so that it can be explored in a good way. Whatever the realistic one is painting, but if there are no more details in it, then it will not be more explorable. It is very necessary to be explorable for a better VR.

5.Immersive: To make VR more believable and interactive, VR must immersive both our body and mind. If something is not attractive enough then it will not be able to attract our mind muh, so that we will easily get acquainted with reality. So the more immersive VR, the more real it seems.

So VR is a very different world. This will force you to think that you are living between a completely believable virtual world. It should be two-way interactive, as well as the way you do your movement, your VR also changes according to your reaction.

Types of Virtual Reality

Virtual reality “is often used in compelling, interactive video games and 3D movies, television programs at the expense of a marketing buzzword. Therefore many types of VRs are Mehsud according to their different features. So let us know about different virtual realities:

Fully immersive

For a complete VR experience, we need three things. First to find a virtual world, a computer model or simulation. The second is a powerful computer which can be able to detect with ease what it is going to do and adjust it in the same way in real time (like the way things change, the reality also changes, so that real realities Seem like). The third hardware that has been linked to the computer, so that we immerse it completely into that virtual world. Often we have to wear a head-mounted display (HMD) in which two screens and stereo sound, and one or more sensory gloves. This gives us the experience of a fully immersive VR.


A realistic flight simulator is the best example of a nonimmersive virtual reality in your home PC when it uses a widescreen, headphones and surround sound, a real joystick and other controls. Because not all people need a completely immersed reality. It is a reality in which reality is not completely immersive, but it is close to it to a great extent.


There are many such games like Second Life and Minecraft, which adhere to the first four criteria of VR (believable, interactive, computer-created and explorable), but these are the fifth criteria which do not completely immerse you It does not follow it. But it has a cutting-edge VR that is collaboration: One such idea to share your experience with others in virtual world, which often happens in real time. Collaboration and Sharing is a very important feature in VR’s future.


There was a time when virtual reality was one of the hottest, fastest-growing technologies, in the late 1980s and early 1990s, but becoming more popular with the World Wide Web, people have a little less attention towards it. Computer scientists have learned the method to create virtual worlds in the web even though (virtual reality markup language, VRML) but it could not be more popular. VR’s future web-based and collaborative with Facebook’s growing interest.

Augmented reality

Mobile devices like smartphones and tablets are just like ours in the supercomputer because today’s smart devices have supercomputer-like computing power. If we use these smart devices properly then we can use it in many things. We also use Augmented Reality to enhance this virtual reality too.

Now the matter arises, what is this Augmented reality? In simple words, it is a type of virtual reality, where if we put our smart device in front of a landmark or striking building, then the inanimate object becomes automatic.

This means that Augmented Reality means that it connects our real world with the information of the vast virtual world, which we collectively create in the web. These two worlds are not virtual only, but in both of these worlds we explore and navigate, we feel like virtual reality.

What equipment do we use in virtual reality?

If you have ever seen a person using Virtual Reality then you must have seen how they used a lot of types of equipment. The difference in an ordinary computer experience and a VR experience is in the nature of its input and output. Where an ordinary computer keyboard uses types of equipment such as mouse, speech recognition, for input, same VR sensor is used to detect how a body is moving.

Wherever a PC output is displayed on a screen, VR also uses two screens (for every eye), stereo and surround-sound speakers, along with haptic feedback (for touch and body perception). So let’s know about some input and output devices that are used in VR technology.

Head-Mounted Displays (HMDs)
The difference between VR and an ordinary computer screen is that: In VR, you can see a 3D image smoothly changing, in real-time, as you move your head. This is possible because the user has to wear a head-mounted display here, which looks like a big motorbike helmet. There are two small screens (one for each eye), a blackout blindfold which blocks external lights (so that the user does not have any distractions from the real world), and also has stereo headphones.

These two screens display slightly different stereoscopic images so that a realistic 3D perspective of the virtual world is visible. HMDs usually have built-in accelerometers or position sensors that detect how your head and body are moving and adjust the picture accordingly.

Immersive Rooms
Immersive rooms are used according to HMD alternatives. Here the user is placed inside a room where the images on the walls of that room are displayed, they always change from the outside. As you move into the room, the images will also change. Flight simulators primarily use this technique, where images of landscapes, cities, and airport approaches are projected in large screens outside the cockpit. It feels a different reality.

It is true that even if we have any reality, we always have the desire to touch things. In VR technology, we can also feel this thing through Datagloves. These datagloves are equipped with sensors, which have been wired in the outer side of the gloves so that they can easily detect these motions.

Here fibre-optic cables are used which are stretched according to the length of the fingers. There are tiny cuts in each cable, just as you do your fingers back and forth, however, more and less light escape from these cuts.

The same happens at the end of a photocell cable, which measures the light of how much light it reaches them. From this, the computer knows what the fingers are doing. They use second gloves strain gauges, piezoelectric sensors, or electromechanical devices (such as potentiometers) to measure finger movements.


A wand is even more simple than a data glove, which is a stick that you can use to interact with touch, point to, or otherwise virtual world. There are position and motion sensors (such as accelerometers) in built in, it also has mouse-like buttons or scroll wheels.

Application of Virtual Reality:-

VR technology is used in many places in our lives. Its application is not only for individuals but also in industries, factories etc. So let’s know about it.

There are many difficult and dangerous jobs for which the train is very difficult to get. Such as safely practising in Space Trip, landing a jumbo jet, doing a parachute jump, or doing a brain surgery. It is very difficult to do all these things properly and for which good training is also very important. Virtual reality is used to do these things. In this way, flight simulators, cockpit simulators, surgery simulators, etc. are used.

Scientific visualization
Anything that happens in an atomic or molecular scale is really invisible. To see them you will have to sit in front of an electron microscope all the time. Similarly, if you want to design any new materials or drugs then you have to experiment with their Molecular equivalent. These things are the application of virtual reality. Here, you can make these complex molecules in front of your eyes by not fighting with two-dimensional drawings of numbers, equations, or molecular structures.

VR technology is used to make surgical training and drug design. In addition, it is also used in virtual reality from telemedicine (where monitoring, examining, and patients can also be operated remotely). As an example now the surgeon lives in one place and there is also a robot on a remote location, VR technology is used to carry out operations here. It is possible without doctors as well.

Industrial design and architecture
Architects used to use cards and paper to make the first models, but now they can easily create virtual reality computer models, which anyone can see and explore too. Now it is very easy to design cars, aeroplanes, and another complex, expensive vehicles on a computer screen, as compared to real-world materials such as wood, plastic. Where the cost of making the first models was more expensive, VR technology has made it much easier.

Games and Entertainment
From flight simulators to race-car games, now everywhere VR technology is used so that the experience of gamers has become much better. If I talked about the first technology then there was lack of full 3D, it used to be slow, and it did not even have decent HMDs and data gloves. But now you can find all these experiences easily at a very low cost.

Advantages & Disadvantage of Virtual Reality:

Virtual reality is such a reality in which the help of technology creates a reality that gets fully absorbed by reality. Just like everything else has some pros and cons, there are some Pros and Cons of VR or Virtual Reality, in which we will learn further:


1. They are better than reality
Visuals that we see in this reality are much better than reality. We use the technology of virtual reality in video games so that the user feels that he is a living in another world. In VR some of the sound and graphics are used in such a way that it is very difficult to say different from this original reality.

2. Being used in different fields
Due to its extensive features, virtual reality can be used in many different fields such as military, education and healthcare. These provide more dimensions to these fields. With this, virtual reality is also used to see the final product in aviation and architecture.

3. Users have a great experience
Users have excellent experiences in using VRs. Through VR technology, users appear to be seeing real sounds in real locations and seeing real things. This is very famous for disabled people, where they can explore the real world. Some movies in which VR is used, give audiences the chance to see the surroundings so that they have an interactive viewing experience.

4. Provides complete detail views
Virtual reality provides a full and detailed view of any place. This is very useful for tourism sites because it offers a detailed view of any place. This allows viewers to plan their trip well and to see real locations in a good way.

5. It helps people to get connected
Through virtual reality, you can communicate with other people whom you do not know in real life. It helps people to make new relationships.

6. Having Effective Communication
Effective communication can be done easily through virtual reality. Users can communicate with other people and enjoy the conversation


1. High cost
These technologies are very costly compared to others. Because of which it is not possible for everyone to use VR technology.

2. Communication should not be shared with a group of people
In the technology of virtual reality, communication should not be shared with more people as it increases the likelihood of dishonesty.

3. Feeling of worthlessness
Many times users use virtual reality to feel that they are running away from the real world which is not good for them and later it can be very dangerous.

4. Users are often addicted
Often users become so addicted to a virtual world that they do not like the real world and they always love being in the virtual world. It is also possible to have their health-related issues.

5. Technology is still experimental
Although VR technology is used in many areas, many such areas are still left where VR technology is still Mehmood in the experimental phase.

6. Training is not really in a VR environment
It happens so often that even if a candidate is doing training in virtual reality, he still has less probability of performing well in the real world. So if we compare the results of real-life situations with the Virtual Reality environment, then there can be a great difference in both.

I sincerely hope that I gave you complete information about what people have Virtual Reality in Hindi and I hope you guys have understood about Virtual Reality. I am convinced of all the readers that you too share this information with your neighbours, relatives, your friends so that we will be aware of our interactions and will all benefit from it.

I need people’s support from you so that I can bring you even more new information.

My always try is to do that I always help my readers or readers on every side, if you have any doubt of any kind, then you can ask me uncomfortable. I will definitely try to solve those Doubts. What is Virtual Reality?

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