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Computer monitor1. Short for Visual Display Unit, VDU is an older British term used to describe any device used with computers to display images. For example, a flat panel display and a projector are both examples of VDUs. However, VDU is most commonly used to describe the CRT monitor, a now archaic standard that has been replaced by flat panel displays.

2. Short for Video Display Unit, VDU is a computing device that allows for input by a user and output to a display, like a computer monitor. It typically consists of a computer monitor or similar display device and a keyboard, and could also include a mouse. In the United States, it is sometimes referred to as a video display terminal, or VDT.

Also see: Video terms