In a video, team members share the challenges of Mars Science Laboratory's ( Curiosity) final minutes to landing on the surface of Mars.

Video is an electronic medium for the recording, copying, playback, broadcasting, and display of moving visual media. [1]

Video was first developed for mechanical television systems, which were quickly replaced by cathode ray tube (CRT) systems which were later replaced by flat panel displays of several types.

Video systems vary in display resolution, aspect ratio, refresh rate, color capabilities and other qualities. Analog and digital variants exist and can be carried on a variety of media, including radio broadcast, magnetic tape, optical discs, computer files, and network streaming.


Video technology was first developed for mechanical television systems, which were quickly replaced by cathode ray tube (CRT) television systems, but several new technologies for video display devices have since been invented. Video was originally exclusively a live technology. Charles Ginsburg led an Ampex research team developing one of the first practical video tape recorder (VTR). In 1951 the first video tape recorder captured live images from television cameras by converting the camera's electrical impulses and saving the information onto magnetic video tape.

Video recorders were sold for US $50,000 in 1956, and videotapes cost US $300 per one-hour reel. [2] However, prices gradually dropped over the years; in 1971, Sony began selling videocassette recorder (VCR) decks and tapes into the consumer market. [3]

The use of digital techniques in video created digital video, which allows higher quality and, eventually, much lower cost than earlier analog technology. After the invention of the DVD in 1997 and Blu-ray Disc in 2006, sales of videotape and recording equipment plummeted. Advances in computer technology allows even inexpensive personal computers and smartphones to capture, store, edit and transmit digital video, further reducing the cost of video production, allowing program-makers and broadcasters to move to tapeless production. The advent of digital broadcasting and the subsequent digital television transition is in the process of relegating analog video to the status of a legacy technology in most parts of the world. As of 2015, with the increasing use of high-resolution video cameras with improved dynamic range and color gamuts, and high-dynamic-range digital intermediate data formats with improved color depth, modern digital video technology is converging with digital film technology.

Other Languages
Afrikaans: Video
العربية: فيديو
asturianu: Video
Bân-lâm-gú: Bí-ti-oh
беларуская: Відэа
беларуская (тарашкевіца)‎: Відэа
български: Видео
bosanski: Video
català: Vídeo
čeština: Video
Cymraeg: Fideo
dansk: Video
Deutsch: Videotechnik
Ελληνικά: Βίντεο
español: Video
Esperanto: Video
euskara: Bideo
فارسی: ویدئو
français: Vidéo
Gaeilge: Físeán
galego: Vídeo
贛語: 視頻
한국어: 비디오
hrvatski: Video
Bahasa Indonesia: Video
íslenska: Myndband
italiano: Video
עברית: וידאו
Basa Jawa: Vidéo
қазақша: Бейнежазба
Kurdî: Vîdeyo
Кыргызча: Видео
latviešu: Video
lietuvių: Video
македонски: Видео
Bahasa Melayu: Video
မြန်မာဘာသာ: ဗီဒီယို
Nederlands: Video
日本語: ビデオ
norsk: Video
occitan: Vidèo
Patois: Vidio
polski: Wideo
português: Vídeo
română: Video
русский: Видео
Scots: Video
shqip: Video
sicilianu: Video
Simple English: Video
slovenčina: Videotechnika
slovenščina: Video
کوردی: ڤیدیۆ
српски / srpski: Видео
srpskohrvatski / српскохрватски: Video
suomi: Video
svenska: Video
తెలుగు: వీడియో
Türkçe: Video
українська: Відео
اردو: ویڈیو
Tiếng Việt: Video
walon: Videyo
文言: 視頻
ייִדיש: ווידעא
粵語: 影片
中文: 视频