On-screen keyboard
As on-screen keyboard (also tight. On-screen keyboard ) is called a displayed only on the visual output and per mouse , joystick or touch operated keyboard .
Applications
A screen keyboard is mostly used where there is not enough space for a hardware keyboard, weight is saved, access to certain keys is to be prevented, the operation of a hardware keyboard is impossible for the user due to motor restrictions or to protect against keyloggers . However, users often prefer hardware keyboard input, since the keys can be operated more comfortably with clear haptic feedback and / or larger keys. To compensate for this, on-screen keyboards usually offer a word prediction function or a word completion function ( auto-correction ). Another disadvantage is that on-screen keyboards on some devices such as smartphones and tablets sometimes cover large parts of the screen.
On- screen keyboards are often used at information portals and kiosk systems at train stations or airports in order to restrict users to the information software and to prevent the keyboard from being stolen.
Console games often use on-screen keyboards to allow the player to type in their name or other short text because the console does not have a keyboard attached.
While the first smartphones were only operated with a physical keyboard until the mid-2000s, in the years that followed, more and more devices made it possible to enter text using the on-screen keyboard without the hardware keyboard having to be unfolded. Even handwriting recognition was and is possible with some smart phones and tablet PCs. For this purpose and for operating the screen keyboard, it used to be common to use an input pen , whereas today it is common to use it with the fingers.
Since then, an increasing number of smartphones only support input via the on- screen keyboard due to their design (because they are purely touchscreen- operated). Since 2015, smartphones without pure touchscreen operation have mainly been manufactured by the Canadian company Blackberry .
Virtual keyboards are also used to enter characters in other languages. In this way, a user can enter Cyrillic or Arabic characters with a German keyboard or with the aid of the mouse. It is possible to enter the text according to the standard layout of the target language keyboard or to use what is known as phonetic input. With phonetic input, words of the target language are entered with German letters and then converted into the target script.
techniques
On PCs, the on-screen keyboards are usually displayed as an application window that can be operated using the mouse or a touchscreen. Modern PC screen keyboards also support operation with several fingers at the same time.
With consoles, the functionality, tailored to the specific application, is firmly integrated into the game.
As soon as the user selects a text field, smartphones open either a keyboard pop-up or use the entire screen for text input (depending on the screen size of the device).
swell
- ↑ Railway information on the ticket and information machines
- ↑ Description of the HTC Touch Pro II ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
- ↑ Description of the Apple iPhone keyboard ( memento of the original from September 19, 2009 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Virtual keyboards with phonetic input ( memento of the original from June 20, 2012 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
