Video

Video is an electronic medium for the recording, copying, playback, broadcast, and display of moving-image media. Video was first developed for mechanical television systems, which were quickly replaced by cathode-ray tube (CRT) systems, which, in turn, were replaced by flat-panel displays. Video systems vary in display resolution, aspect ratio, refresh rate, color reproduction, and other qualities.

Extends: Video, [Digital television](https://wikipedia.org.ai/Digital television), [High-definition television](https://wikipedia.org.ai/High-definition television), [Display technology](https://wikipedia.org.ai/Display technology), [Television terminology](https://wikipedia.org.ai/Television terminology)