Q. VDU: Visual Display Unit; VDT:
Solution:
VDT (video display terminal, or sometimes visual display terminal) is a term used, especially in ergonomic studies, for the computer display . A display is a computer output surface and projecting mechanism that shows text and often graphic images to the computer user, using a cathode ray tube ( CRT ), liquid crystal display ( LCD ), light-emitting diode, gas plasma, or other image projection technology.
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