U-matic is the name of a videocassette format first shown by Sony in prototype in October 1969, and introduced to the market in September 1971. Videotape is a means of recording images and sound onto Magnetic tape as opposed to movie film. is a multinational conglomerate corporation headquartered in Minato Tokyo, Japan, and one of the world's largest Media conglomerates with It was among the first video formats to contain the videotape inside a cassette, as opposed to the various open-reel formats of the time. Videotape is a means of recording images and sound onto Magnetic tape as opposed to movie film. Reel-to-reel, open reel tape recording is the form of magnetic tape audio recording in which the recording medium is held on a Reel, rather than being Interestingly, unlike most other cassette-based tape formats, the supply and take-up reels in the cassette worked in opposite directions during playback, fast-forward and rewind: one reel would run clockwise while the other would run counter-clockwise. As part of its development, in March 1970, Sony, Matsushita Electric Industrial Co., Victor Co. of Japan (JVC), and five non-Japanese companies reached agreement on unified standards. ( usually referred to as JVC, is an International consumer and professional electronics Corporation based in Yokohama, Japan which was founded
The videotape was 3/4 inches (1. 9 cm) wide, so the format is often known as 'three-quarter-inch' or simply 'three-quarter'. U-matic was named after the shape of the tape path when it was threaded around the helical video head drum, which resembled the letter U.  Betamax used this same type of "U-load" as well. ---- Betamax is a home Videocassette tape recording format developed by Sony, and released on May 10, 1975.
The total potential lines of image resolution for standard U-matic is 250 lines (the NTSC television system signal that it records is capable of 330 lines of image resolution). Image resolution describes the detail an Image holds The term applies equally to Digital images film images and other types of images NTSC ( National Television System Committee) is the Analog television system used in the United States, Canada, Japan, Mexico
U-matic is also available in a smaller cassette size, officially known as U-Matic S. Much like VHS-C, U-Matic S was developed as a more portable version of U-Matic, to be used in smaller sized S-format recorders such as the Sony VO-3800 (the first portable U-Matic S machine released by Sony in 1974), the Sony BVU-100, and the Sony VO-6800. VHS-C is the compact VHS format introduced in 1982 and used primarily for consumer-grade compact Camcorders. S-format tapes can be played back in older top-loading standard U-Matic decks with the aid of an adapter (the KCA-1 from Sony) which fitted around an S-sized tape in order for it to load properly in the deck, while newer front-loading machines can accept S-format tapes directly. U-Matic S tapes had a maximum recording time of 20 minutes, although some tape manufacturers such as 3M came out with 30 minute tapes by loading the cassette with a thinner tape. 3M Company ( formerly Minnesota Mining and Manufacturing Company until 2002 is an American multinational conglomerate corporation with a worldwide It was the U-Matic S-format decks that ushered in the beginning of ENG, or Electronic News Gathering. ENG is a Broadcasting (usually Television) industry acronym which stands for electronic news gathering.
In the early 1980s, Sony introduced the semi backwards-compatible High-band or BVU (Broadcast Video U-matic) format, and the 'original' U-matic format became known as 'Low-band'. This High-band format had an improved colour recording system and lower noise levels. BVU gained immense popularity in ENG and location programme-making, spelling the end of 16mm film in everyday production. By the early 1990s, Sony's 1/2" Betacam SP format had all but replaced BVU outside of corporate and 'budget' programme making. Betacam is a family of half-inch professional Videotape products developed by Sony from 1982 onwards Sony made a final improvement to BVU by further improving the recording system and giving it the same 'SP' suffix as Betacam. First generation BVU-SP and Beta-SP recordings were hard to tell apart, but despite this the writing was on the wall for the U-matic family.
U-matic would also see use for the storage of digital audio data. Digital audio uses Digital signals for Sound reproduction. This includes analog-to-digital conversion, digital-to-analog conversion, storage Most digital audio recordings from the 1980s were digitally mastered to U-matic tape. The Sony PCM-1600 PCM adaptor used a U-matic recorder as a transport. A PCM adaptor is a device used for recording Digital audio in the PCM format which in turn connects to a Video cassette recorder (acting as a transport A transport is a device that handles a particular physical storage medium (such as Magnetic tape, Audio CD, CD-R, or other type of recordable media itself The PCM-1600 output standard "pseudo video" in 525/60 format, which appeared to be a video image of vibrating checkerboard patterns that could be recorded on a video recorder. The PCM-1600 was the first system used for mastering audio compact discs in the early 1980s, with the famous Compact Disc 44. A Compact Disc (also known as a CD) is an Optical disc used to store digital data, originally developed for storing digital audio 1 kHz sampling rate based on a best-fit calculation for the U-matic's video horizontal-sync rate. The hertz (symbol Hz) is a measure of Frequency, informally defined as the number of events occurring per Second. Sampling theorem The Nyquist–Shannon sampling theorem states that perfect reconstruction The later PCM-1610 and 1630 units also used U-matic cassettes as a storage medium.
U-matic is no longer used as a mainstream production format, yet it has such a lasting appeal as a cheap, well specified, and hard-wearing format that many television facilities the world-over still have a U-matic recorder for archive playback of material recorded in the 1980s.
Four decades after it was developed, the format is still used for the menial tasks of the industry, being more highly specialized and suited to the needs of production staff than the domestic VHS, although as time passes it has been replaced at the bottom of the tree of tape-based production formats by Betacam and Betacam SP as these in turn are replaced by Digital Betacam and HDCAM. Betacam is a family of half-inch professional Videotape products developed by Sony from 1982 onwards Betacam is a family of half-inch professional Videotape products developed by Sony from 1982 onwards Betacam is a family of half-inch professional Videotape products developed by Sony from 1982 onwards HDCAM, introduced in 1997, is an HD version of Digital Betacam, using an 8-bit DCT compressed 311 recording in 1080i -compatible