Q21. Brief explain
- VDU: VDU stands for Visual Display Unit, VDU is a computing device that allows for input by a user and output to a display, like a computer monitor.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.
- LCD: LCD (liquid crystal display) is the technology used for displays in notebook and other smaller computers. LCDs allow displays to be much thinner than cathode ray tube (CRT) technology. LCDs consume much less power than LED.