advantages of pen drive
a pen light :)
function of light pen
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Light Pen is an input Device.
Light Pen is an input Device.
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.
The advantages of pen drives are they are small and very compact making it easy to carry around a large amount of documents and transfer them onto another computer.
The light pen is used to draw objects on a CRT computer screen. They are also used to display objects over computer devices.
Mouse or light pen
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.
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.