Definitions for light pen
light pen

Princeton's WordNetRate this definition:0.0 / 0 votes

1. light pen, electronic stylusnoun

   (computer science) a pointer that when pointed at a computer display senses whether or not the spot is illuminated

WiktionaryRate this definition:0.0 / 0 votes

1. light pennoun

   A pen-like device allowing a computer user to interact with the screen display.

WikipediaRate this definition:0.0 / 0 votes

1. Light pen

   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. A light pen can work with any CRT-based display, but its ability to be used with LCDs was unclear (though Toshiba and Hitachi displayed a similar idea at the "Display 2006" show in Japan). A light pen detects changes in brightness of nearby screen pixels when scanned by cathode-ray tube electron beam and communicates the timing of this event to the computer. Since a CRT scans the entire screen one pixel at a time, the computer can keep track of the expected time of scanning various locations on screen by the beam and infer the pen's position from the latest time stamps.

ChatGPTRate this definition:0.0 / 0 votes

1. light pen

   A light pen is an input device that allows users to interact with a computer by touching the screen. The device resembles a pen and contains a light detector that, when pointed at a light-emitting screen, communicates with the computer to perform tasks such as drawing, selecting and moving items. It was largely used in the early days of computer-aided design and graphic design but is now somewhat obsolete due to improvements in technology.

WikidataRate this definition:0.0 / 0 votes

1. Light pen

   A light pen is a computer input device in the form of a light-sensitive wand used in conjunction with a computer's 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. It was long thought that a light pen can work with any CRT-based display, but not with LCDs and other display technologies. However, in 2011 Fairlight Instruments released its Fairlight CMI-30A, which uses a 17" LCD monitor with light pen control. A light pen detects a change of brightness of nearby screen pixels when scanned by cathode ray tube electron beam and communicates the timing of this event to the computer. Since a CRT scans the entire screen one pixel at a time, the computer can keep track of the expected time of scanning various locations on screen by the beam and infer the pen's position from the latest timestamp.

Matched Categories

1. • Computer Science
   • Pointer

Anagrams for light pen »

1. penlight

How to pronounce light pen?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say light pen in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of light pen in Chaldean Numerology is: 7

2. Pythagorean Numerology

   The numerical value of light pen in Pythagorean Numerology is: 1

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=light pen
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Light_Pen
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Light_Pen
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=light pen