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The BAT keyboard is a one-handed input device with seven keys that can perform all the functions of a standard keyboard. It is designed for one-handed use and is commonly used by people with disabilities or those who need to use a mouse or stylus. The chords created by pressing different combinations of keys allow access to all alphanumeric and functional keys. It requires practice to develop efficiency and speed.
A BAT keyboard is a computer input device designed to provide users with the ability to type words and enter all of the same commands as possible with a standard keyboard using one hand. The device consists of a solid base and a wrist pad and has only seven keys in total. The user rests his hand on the wrist pad and places his index finger across the little finger on four of the keys, with the thumb reaching for the other three. A BAT keyboard is then used through various combinations of keystrokes that type letters and numbers and enter various commands, like the function keys on a standard keyboard.
There are a number of reasons why someone might use a BAT keyboard, although it is commonly intended for people who need to type one-handed. The keyboard is designed to be used by one hand, with separate models made to work with both the right and the left. People with disabilities, such as those who have lost the use of a hand, can easily learn to use a BAT keyboard and have the same functionality as a full QWERTY keyboard. These devices are also commonly used by engineers and graphic artists who always want to have one hand on a mouse or stylus.
The design of a BAT keyboard is quite simple and consists of a base that is about the same size as a hand. There is a cuff so that a user can comfortably rest one hand on the keyboard. Only seven keys are on a BAT keyboard, but through a combination of different keys pressed together, all of the same alphanumeric and functional keys can be accessed. Three of the keys are pressed by the user’s thumb and the other four are each intended for one finger.
The combinations of keys you press are called “chords,” similar to musical chords created on a piano through key combinations. For example, to type the letter “a,” a BAT keyboard user could press the middle thumb key and the three keys below the index, middle, and ring fingers. One of the thumb keys can be used as a space bar and the other two provide additional functions.
Through these seven keys it is therefore possible to play various chords to reproduce every key and function available on a standard keyboard. Using a BAT keyboard can take hours of practice, especially to develop efficiency and speed with the device. The same goes for any keyboard, though, so it’s not noticeably slower than any other input device.
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