The keyboard is an important part of desktop and laptop. Without a keyboard, it might have been difficult for you guys to get to this article. 😉 You have to type the website address in the Search bar of your browser to access the data over the internet. We have to use a keyboard with our computer to compose e-mails, type out word processing documents. Typing is a skill we have to learn and practice in order to perform such activities efficiently. Without the keyboard, it is difficult to communicate with our friends, family. Even today’s smartphones come equipped with smaller keyboards. So, we can fairly say the keyboard is an important part of most of the smart devices.
A keyboard is a software component that allows the user to input character to machine or system. A virtual keyboard is a device uses advanced laser technology. It can project a full-sized keyboard onto a flat surface. Its size is no more than a fountain pen. It is a wireless gadget and it is used to communicate with another smart device via Bluetooth.
The virtual Keyboard works by using both infrared and laser technology. By using these technologies it produces a projected image of the keyboard. This device is easy to use and does not require any software installation. The Virtual Laser Keyboard includes a self-contained, rechargeable lithium ion battery. This battery can last for 150min after continuously typing. The virtual keyboard is compatible with iPhone, iPad, Smartphones, PDA and tablets.
It can be operated with multiple input devices i.e. touch screen, computer mouse, and actual computer keyboard. A virtual keyboard might provide an alternative input mechanism for users with disabilities who cannot use a conventional keyboard on a desktop computer. It provides a user-friendly interface. Users can interact with devices in a more efficient way by using a virtual machine. It has totally changed the user experience of inputting to the system. A variety of virtual keyboard is available in the market.
Virtual keyboards can be categories in following aspects.
A keyboard with distinct keys comprising electronically changeable displays integrated into the keypads. It is integrated with an electronic device that uses keys that can be physically depressed. Most all computer keyboards are physical, while all “built-in” tablet keyboards are touchscreen. Smartphones may also have physical keyboards, such as the venerable BlackBerry models.
Also Read: What is artificial intelligence?
Touch screen virtual keyboards
Virtual keyboards to allow input from a variety of input devices. Touch screen virtual Keyboard is useful for mobile users with Tablet PCs, machine tools, medical equipment, kiosks or point of sale manufacturers, etc.
Optically projected keyboard layouts
By using optically projected keyboard, users can project a full-sized keyboard onto a flat surface.
Optically detected human hand and finger motions
In 2008 an optical virtual keyboard was introduced by IBM engineer. It optically detects and analyses human hand and finger motions and interprets them as operations on a physically non-existent input device like a surface having painted keys. The virtual keyboard allows emulating unlimited types of manually operated input devices such as a mouse or keyboard. All mechanical input units can be replaced by such virtual devices, optimized for the current application and for the user’s physiology maintaining speed, simplicity, and unambiguity of manual data input.
Online virtual keyboards
Advantages of using virtual keyboard
- Virtual keyboards help in reducing the risk of keystroke logging.
- In a case of the virtual keyboard, it is more difficult for malware to spy on the data entered by users.
- In a virtual machine, no extra hardware required user just need a touch screen and some software.
Advantages of using virtual keyboard
- An observer can easily watch the keyboard, thus he can notice the characters entered by the user.
- Clicking on virtual keyboard may give visual feedback of the “key” clicked. This can help an observer to read data from the screen.
- A normal user can’t work so fast on the virtual keyboard, this drawback can help an observer to read data from the screen.