题目内容
An MICR device senses the presence or absence of a mark, such as a pencil mark.
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The monitor size is measured by the diagonal length of the viewing area.
Output devices are any hardware used to provide or to create output.
3D UHDTV requires special viewing glasses in order to achieve a 3D viewing experience.
Digital or interactive whiteboards display a computer's desktop and can be controlled using a special pen or a finger.
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