Monitor as visual output device – UGC NET Question

A monitor converts the electronic signals produced by the graphics system into images that users can see. It shows text, pictures, videos and graphical interfaces, enabling interactive computing. Without a monitor, visual feedback from most applications would not be possible. Hence the screen-based output device described is the monitor.

Option A:
Option A, printer, produces hard-copy output on paper rather than visual images on a screen. While it is an important output device, it does not provide immediate, interactive display capabilities.

Option B:
Option B is correct because the monitor is specifically designed to present soft-copy output in real time. It supports graphical user interfaces and dynamic content, making it central to day-to-day computer use.

Option C:
Option C, speaker, outputs audio information such as music or alerts and cannot display visual elements. Therefore it cannot satisfy the requirement stated in the stem.

Option D:
Option D, plotter, is a specialised device for producing vector drawings and large-scale graphics on paper. It is not used for general on-screen visual display.