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A light pen is a computer input device in the form of a light-sensitive wand used in conjunction with a computer's CRT TV set or monitor. It allows the user to point to displayed objects, or draw on the screen, in a similar way to a touch screen but with greater positional accuracy. A light pen can work with any CRT-based display, but not with LCD screens (though Toshiba and Hitachi displayed a similar idea at the "Display 2006" show in Japan[1]), projectors and other display devices. An input device that utilizes a light-sensitive detector to select objects on a display screen. A light pen is similar to a mouse, except that with a light pen you can move the pointer and select objects on the display screen by directly pointing to the objects with the pen.
What else can I help you with?
What is another name for the light pen?
a pen light :)
What are the functions of the light pen?
function of light pen
Is a light pen a input or output?
Light Pen is an input Device.
Is lights a input or output?
Light Pen is an input Device.
Example of pointing device?
-MoUsE -tRaCkBaLL -JoYsTiCk -tOuCh ScReEn -LiGht pEn -pEn-BaSeD sYstEm-DiGiTiZiNg tAbLeT -DiGiTiZiNg pEn
What is another name for the light pen?
a pen light :)
What are the functions of the light pen?
function of light pen
Is a light pen a input output?
Light Pen is an input Device.
Is a light pen a input or output?
Light Pen is an input Device.
What does a light pen contain?
A light pen typically contains a light sensor that detects light emitted from a computer screen. When the pen is pressed against the screen, the sensor registers the light and communicates with the computer to determine the pen's position on the screen.
What are the uses of light pen?
The light pen is used to draw objects on a CRT computer screen. They are also used to display objects over computer devices.
Output device used to draw building plans?
Mouse or light pen
Is a light pen mechanical or optical device?
A light pen is an optical device that detects light emitted by a computer screen to determine the position of the pen on the screen. It is used as an input device to interact with computers by pointing, clicking, and drawing on the screen.
How a light pen works?
A light pen works by detecting light emitted by a computer monitor or screen when the pen's tip touches the surface. The pen has a light-sensitive photodiode at the tip, which detects the light and sends a signal back to the computer to identify the pen's position on the screen. This allows users to interact with software by pointing and selecting on the screen.
How does lightpen work?
A light pen operates by detecting the light emitted from a computer screen when activated by a user pressing the pen against the screen. The screen emits electron beams that are picked up by the light pen, allowing the computer to determine the location on the screen that the pen is pointing at.
What is the disadvantage of the light pen?
One disadvantage of a light pen is that it requires a display with a special coating to detect the light emitted by the pen accurately. Additionally, it can be less precise than other input devices like a mouse or stylus.
Why are light pen is called light pen?
A light pen is called so because it is a handheld input device that can detect light on a computer screen. It uses a photocell to detect the presence of light emitted by the screen, allowing it to function as a pointing device.
