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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 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 is a device similar to a touch screen, but uses a special light-sensitive pen instead of the finger, which allows for more accurate screen input. As the tip of the light pen makes contact with the screen, it sends a signal back to the computer containing the coordinates of the pixels at that point.
A pen is a handheld device used to apply ink to a surface, usually paper, for writing or drawing. [1] Additional types of specialized pens are used in specific types of applications and environments such as in artwork, electronics, digital scanning and spaceflight, and computing.
A graphic tablet. A graphics tablet (also known as a digitizer, digital graphic tablet, pen tablet, drawing tablet, external drawing pad or digital art board) is a computer input device that enables a user to hand draw or paint images, animations and graphics, with a special pen-like stylus, similar to the way a person draws pictures with a pencil and paper by hand.
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From January 2008 to December 2012, if you bought shares in companies when John H. Walker joined the board, and sold them when he left, you would have a -33.7 percent return on your investment, compared to a -2.8 percent return from the S&P 500.
It is stated that the first light pen was also called the "light gun" which, while correct as referenced in Everett 1980, has little to do with the article - light gun - linked, which is the video-game peripheral. Although they could use the same CRT technology (although the article also includes non-examples such as the Wii Remote which is an ...
From January 2008 to December 2012, if you bought shares in companies when Kenneth B. Woodrow joined the board, and sold them when he left, you would have a -19.4 percent return on your investment, compared to a -2.8 percent return from the S&P 500.