Light pen - Wikipedia
A light pen is a computer input device in the form of a light-sensitive wand used in conjunction with a computer's cathode-ray tube (CRT) display. It allows the user to point to displayed objects or draw on the screen in a similar way to a touchscreen but with greater positional accuracy.
What is a Light Pen? - GeeksforGeeks
2023年10月18日 · A light pen is a type of pointing input device that detects light and is frequently used to select or alter text or data on a screen. These devices, when used with a CRT (cathode ray tube) monitor, were an early method of highlighting and modifying data on the screen.
10 Examples of Input Devices - educatecomputer
2023年12月29日 · A light pen is a computer input device shaped like a pen. Users can point directly at elements on a display screen to select, draw, or manipulate them by using this device. Light pens can detect and capture positions on CRT and early LCD screens based on cathode-ray tube technology.
What is a Light Pen? - Definition from Techopedia
2016年7月26日 · A light pen is a light-sensitive computer input device, basically a stylus, that is used to select text, draw pictures and interact with user interface elements on a computer screen or monitor.
Advantages & disadvantages of the light pen - eHow UK
The light pen is a light-sensitive computer input device in the shape of a pen which allows you to point at a computer screen with light, or even to draw on the screen. Light pens are used in design work and by medical professionals to access and highlight medical records, and …
Light pen - Wikiwand
A light pen is a computer input device in the form of a light-sensitive wand used in conjunction with a computer's cathode-ray tube (CRT) display.
What is a Light Pen? - Computer Hope
2017年10月11日 · A light pen is a light-sensitive pointing input device commonly used to select or otherwise modify text or data on a screen. Used with a CRT (Cathode Ray Tube) monitor, these devices were an early form of manipulating and highlighting data on the screen.
Light Pen – Definition & Detailed Explanation - PCPartsGeek
2024年6月2日 · A light pen is a pointing device that resembles a pen and is used to interact with a computer screen or monitor. It is a handheld device that emits light and is equipped with a light-sensitive detector at the tip.
What is Light Pen | Definition & Uses of Light Pen
2023年6月24日 · Definition of Light pen -: Light Pen, which is similar to the Normal Pen, is a pointing input device that is used to select the menu or picture display on the screen of a mobile or computer.
Light Pen – The Computer Mouse - Jeffrey W. McClurken
2017年4月4日 · History: The light pen is a unique antecedent, as it is a first attempt at touchscreen technology. It is a “penlike input device that was used with cathode-ray tube display to point at items on the screen or to draw new items or modify existing ones.
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