What are main features of VDU?

A Visual Display Unit (VDU) primarily features a screen for displaying visual output, which can be either cathode ray tube (CRT) or liquid crystal display (LCD) technology. It allows for user interaction through a connected keyboard and mouse, facilitating tasks such as data entry and navigation. Additionally, VDUs often include adjustable brightness and contrast settings, along with various resolutions to enhance visual clarity and comfort for users. Many modern VDUs also incorporate ergonomic designs to reduce eye strain and improve user experience.