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19 Cards in this Set
- Front
- Back
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Digital Expression 403 Laura Londoño A01570224 |
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Video |
The recording, reproduction or broadcasting of moving visual images.
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Vitaphone |
It is a system of sound on a disc developed by the Bell Telephone Company and Western Electric. It was used as a match in silent movies to give an environment context and narration to the stories. It was widely used by Warner Brothers in at least 100 of their first movies.
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Movietone |
It is a system of sound recording created in 1922 by Theodore Case and Earl Spoonable; It integrated the sound to the images, and ir was firstly used by Fox company, which is now known as 20th Century Fox. |
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Beta |
It is an anagogic format to produce home videos. It consisted of a magnetic tape developed by Sony. It was sold in 1975, and it has the capacity of storing 266 to 300 lines depending if it was black and white, or color. It recorded around 2 hours. |
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VHS |
Stands for Video Home System. It was similar to an audio cassette with 1/2 inch tape. It was highly accepted for around 20 years before the appearance of DVDs.
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Flash memory |
It is an EEPROM type memory (Electronically Erasable and Programmable Read Only Memory). It was created in 1984 by Fujio Masuoka. There are many versions of it: some have the shape of a pen, a bar, camera cards, etc. It is quick and silent, and it is easy to carry. It has a storing capability that is much higher that its predecessor, the floppy disc.
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DVD |
Stands for Digital Video Disc. It replaced the Beta technology in recording and distributing video material. Its recording Process is based on the use of laser instead of electromagnetism. This provides more quality in both audio and video. |
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Retinal persistence |
It is the effect in the eye´s retina that makes the images perceived by the eye be recorded for a very small fraction of time, like a tenth of a second. When the ye is exposed to a succession of fixed images, the illusion of movement gives life to the magic of cinema. It was discovered by the Belgian Joseph Plateau.
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FPS |
Stands for Frames Per Second. It is the amount of frames that are shown on a video in a period of one second.
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PAL |
Stands for Phase Alternating Line which consists on the using of 25 frames per second. It is used in Europe, Asia and some countries of America.
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NTSC |
Stands for National Television System Committee. It consists on using 30 frames per second to create video ¡, including an aspect ratio of 4:3 and an optium handing of sound.
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SECAM |
The television broadcasting system used in France and eastern Europe. |
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EDTV |
Stands for Enhance Definition Television, a common name for a particular subset for DTV.
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HDTV |
Stands for High Definition Television is a new means of television broadcasting and the machines that take advantage of it.
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Blu-ray |
Refers to the technology based on a blue beam that allows the recording of different layers of a DVD, especially design for high density recording. It may contain from 1 to 4 layers and each one has a capacity of 25 GB. It handles HD information (1080 p/60), differently from the DVD which only handles 480 p or 576 p.
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HD-DVD |
Stands for High Definition Digital Video Disc and is a discontinued digital optical media format which is being developed as one standard for high-definition
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Codec |
It means coder-decoder. It is a software that consists on an algorithm to compress and decompress video in real time. Its use does´t interfere with the playing speed. There are also codecs for audio files.
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AVI |
Stands for Audio Video Interleaved (the profile picturr |
