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Virtual keyboards are commonly used as an on-screen input method in devices with no physical keyboard where there is no room for one, such as a pocket computer, personal digital assistant (PDA), tablet computer, or touchscreen-equipped mobile phone. Text is commonly inputted either by tapping a virtual keyboard or finger-tracing. [10]
The on-screen keyboard is the most common type of virtual keyboard. The accuracy of this keyboard depends only on hitting the right key. The main purpose of an on-screen keyboard is to provide an alternative mechanism for disabled users who cannot use a physical keyboard, or to provide text input on devices lacking a physical keyboard, such as ...
A computer keyboard is a peripheral input device modeled after the typewriter keyboard [1] [2] which uses an arrangement of buttons or keys to act as mechanical levers or electronic switches. Replacing early punched cards and paper tape technology, interaction via teleprinter -style keyboards have been the main input method for computers since ...
Most early computers only had a front panel to input or display bits and had to be connected to a terminal to print or input text through a keyboard. Teleprinters were used as early-day hard-copy terminals [3] [4] and predated the use of a computer screen by decades. The computer would typically transmit a line of data which would be printed on ...
Unicode input is method to add a specific Unicode character to a computer file; it is a common way to input characters not directly supported by a physical keyboard. Characters can be entered either by selecting them from a display, by typing a certain sequence of keys on a physical keyboard, or by drawing the symbol by hand on touch-sensitive ...
The designer of the TV Typewriter, Don Lancaster, developed a low-cost video display for the KIM-1. The add-on board would display up to 4000 characters on a TV or monitor. A typical configuration would be 16 lines of 32 upper-case only characters. The board had only 10 low-cost ICs and used the KIM's memory for the screen storage.
A touchscreen (or touch screen) is a type of display that can detect touch input from a user. It consists of both an input device (a touch panel) and an output device (a visual display). The touch panel is typically layered on the top of the electronic visual display of a device.
The term input method generally refers to a particular way to use the keyboard to input a particular language, for example the Cangjie method, the pinyin method, or the use of dead keys. On the other hand, the term input method editor on Microsoft products refers to the program that allows an input method to be used (for example MS New Pinyin ...