Without the keyboard on your computer, whether it’s a desktop computer or a laptop computer, it would have been quite difficult to access this article. Of course, you may have placed a bookmark on the website and used your mouse to click between several links, but most of the time you probably type the website address in your browser to get there. Most of us who own a computer use a keyboard almost every day to compose emails, type word processing documents, visit websites, and do searches. And as easy as it sounds, typing is a skill that we need to learn and practice in order to function properly. Most students take typing classes from primary school and word processing is one of the most common skills listed in the résumé of a job seeker.
Difference Between Traditional Keyboard And Virtual Laser Keyboard
A traditional keyboard, which connects to a desktop computer or is part of a laptop, looks very much like another smaller computer. If you dismantle it, it has a processor and circuits similar to those on your computer. Under each key is a circuit board, and once you press a key, the switch closes. This sends a small electrical current through the network, which the processor recognizes and analyzes. The processor, in turn, sends information about your keystrokes to your computer, and can do so in several ways. Most desktop users connect their keyboard using cables, although common wireless technologies such as Bluetooth allow you to type remotely, provided the computer has the necessary receiver. Laptop keyboards, on the other hand, connect directly to the computer hardware.
When you tap on a virtual laser keyboard, no switch is involved. In fact, there are no mechanical parts moving. The device projects the image of a QWERTY keyboard onto a non-reflective flat surface using a red diode laser. The laser shines through a diffractive optical element (DOE), which is simply a tiny image of the keyboard. The DOE, coupled with special optical lenses, extends the image to a usable size and projects it onto a surface.
But a simple keyboard image will not get you anywhere: you need to be able to analyze the information you enter. An infrared laser diode (IR) is located near the bottom of the unit and projects a thin beam of infrared light. . The plane, invisible and parallel to the surface, rests only a few millimeters above the image of the keyboard. When you start typing, you pass your fingers in certain areas of infrared light. A CMOS (complementary metallic semiconductor) saves the position of your finger in the keyboard area, and a special sensor chip called the Virtual interface processing core analyzes the location of the desired keystroke. The device then sends this input information to the computer after receiving the user commands.
Using Virtual laser keyboards
Most virtual laser keyboards stand on a rectangular base or lift themselves with a support that is detached from the rear. When powered on, the keyboard can connect to a smartphone, PDA or laptop via a USB cable or, more commonly, Bluetooth wireless technology. These two connection options allow the virtual laser keyboard to send information of the keystroke to a word-processing document, e-mail, or any other program in task.
Although they are small and easy to carry, you cannot connect the virtual laser keyboard and start typing at any place. If you were sitting on the bus, for example, and you wanted to write a quick email on your iPhone, you could not project the red laser from the camera on your knees and expect it to work properly. Virtual laser keyboards require flat, opaque and non-reflective surfaces for projection and typing. Once the keyboard is set to the appropriate surface type, the device displays a normal-sized QWERTY keyboard, which typically contains 60 or more keys. Then you just type as you would on a normal keyboard, although the sensation you normally get when you tap on a laptop or desktop computer-jumps and clicks associated with keystroke hits, that feels will not be there. In fact, many users need a little practice to get used to pressing their fingers on a smooth surface.
The 3 best virtual laser keyboard are
1. LAMASTON Bluetooth Virtual Keyboard
This model is a small version of the typical keyboard, which makes it perfect for those looking for an extremely portable device. This virtual keyboard illuminates a bright red keyboard on a flat surface and can also be used as a virtual mouse.
This keyboard uses an English QWERTY layout and can connect to almost any device, such as those from Apple and Windows. It can work on both, rechargeable battery and Bluetooth. One great advantage is it can work as a Bluetooth speaker and you can also adjust the brightness and the sound of the keyboard.
2. Celluon EPIC Ultra-Portable Full-Size Virtual Keyboard
The Celluon EPIC Virtual Keyboard projects the keystrokes image on your desired surface which makes it great for those who want a keyboard that’s easy to see. This virtual laser keyboard is made with a black and silver design and can work with Bluetooth V3.0.
It’s able to easily to connect to all types of devices like Windows,Apple and Android. This model also features a built-in battery which you can recharge from your laptop, computer, or phone.
The advantage of this virtual keyboard is it is portable and compact and you can adjust the brightness and sound levels.
3. iNextStation Wireless Bluetooth Projection Virtual Keyboard
This laser keyboard is black design and features a powerful sensor that can help you instantly grasp your keystroke on the device to which it is connected. It has a special Bluetooth matching feature and can be used with virtually any device.
Downstairs you’ll find some lights. There is a blue one that will highlight the current Bluetooth connection and a red led indicating the current charge status. On the side is a micro USB connector that you can use to connect the keyboard to your devices and help charge its rechargeable battery. One great advantage is it has a key ring strap on the side so you can take this keyboard on the go and It is also portable. Also, the keyboard works very quickly.
More posts from wizard technical
Telangana Government has announced lockdown from tomorrow i.e., 12th of may 2021. According to thet, only from morning 6 a.m to 10 am.m we can go out and after that we should follow lockdown rules. The lockdown is for 10 days only as of now. https://www.youtube.com/watch?v=gOm0px7hSzc
Who filed a complaint against Myntra? Who is Naaz Patel, the woman behind the change of the Myntra logo? Recently the news about Myntra changing its logo because a woman activist Naaz Patel filed a complaint against its logo is trending on social media. We can find that she is an activist and from Mumbai…
Hello guys, If you are facing any Wipro server unavailable issue, just email the [email protected] and [email protected] You are facing the same issues which are faced by most of the students today, you are in the right place. You have the solution in this article. You can contact them for any queries regarding the issues…
We are delighted to inform that Goldman Sachs has come up with a recruitment process to hire 2021 / 2022 graduating batch students. Goldman Sachs registration link is provided in this article. Students of 2022 batch (current 2nd years)are also eligible to register for this event and students upon selection will be offered Internship during summer…
Hello guys, Have you attempted the TCS NQT test in 2020 and want to again attempt it in 2021 as well, then you are at the right place. We provide you with full details about the TCS nqt exam which is conducted offline in February 2021. Do not get overwhelmed with details from various sources.…
Cognizant recruitment off campus drive for freshers 2021 Cognizant is hiring freshers of 2021 in their off-campus drive. Cognizant is a multinational company. It has different kinds of domain services, which have AI/Ml, IoT, etc. They are hiring for a Programmer Analyst Trainee position in their company. Hiring for the position So the qualification for…