Q: Is a video an electronic medium for the recording? ¶
A: Yes, and copying, playback, broadcasting, and display of moving visual media.
Q: Was a video first developed for mechanical television systems? ¶
A: Yes, and which were quickly replaced by cathode ray tube systems which were later replaced by flat panel displays of several types.
Q: Is a video a video signal transferred by an analog signal? ¶
Q: Is a video used in both consumer and professional television production applications? ¶
Q: Was a video originally exclusively a live technology? ¶
Q: Is a video by chroma subsampling? ¶
A: Yes, Because the human eye is less sensitive to details in color than brightness, the luminance data for all pixels is maintained, while the chrominance data is averaged for a number of pixels in a block and that same value is used for all of them.