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Capacitance Electric Disk
The Capacitance Electronic Disc (CED) is an analog video disc playback system developed by RCA, in which video and audio could be played back on a TV set using a special stylus and high-density groove system similar to phonograph records. First conceived in 1964, the CED system was widely seen as a technological success which was able to increase the density of a long-playing record by two orders of magnitude. Despite this achievement, the CED system fell victim to poor planning, various conflicts with RCA management, and several technical difficulties that slowed development and stalled production of the system for 17 years—until 1981, by which time it had already been made obsolete by laser videodisc (DiscoVision, later called LaserVision and LaserDisc) as well as Betamax and VHS video cassette formats. Sales for the system were nowhere near projected estimates. In the spring of 1984, RCA announced it was discontinuing player production, but continued the production of video ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Videotape
Videotape is magnetic tape used for storing video and usually sound in addition. Information stored can be in the form of either an analog or digital signal. Videotape is used in both video tape recorders (VTRs) and, more commonly, videocassette recorders (VCRs) and camcorders. Videotapes have also been used for storing scientific or medical data, such as the data produced by an electrocardiogram. Because video signals have a very high bandwidth, and stationary heads would require extremely high tape speeds, in most cases, a helical-scan video head rotates against the moving tape to record the data in two dimensions. Tape is a linear method of storing information and thus imposes delays to access a portion of the tape that is not already against the heads. The early 2000s saw the introduction and rise to prominence of high-quality random-access video recording media such as hard disks and flash memory. Since then, videotape has been increasingly relegated to archival and si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Random Access
Random access (more precisely and more generally called direct access) is the ability to access an arbitrary element of a sequence in equal time or any datum from a population of addressable elements roughly as easily and efficiently as any other, no matter how many elements may be in the set. In computer science it is typically contrasted to sequential access which requires data to be retrieved in the order it was stored. For example, data might be stored notionally in a single sequence like a row, in two dimensions like rows and columns on a surface, or in multiple dimensions. However, given all the coordinates, a program can access each record about as quickly and easily as any other. In this sense, the choice of datum is arbitrary in the sense that no matter which item is sought, all that is needed to find it is its address, i.e. the coordinates at which it is located, such as its row and column (or its track and record number on a magnetic drum). At first, the term "random a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Remote Control
In electronics, a remote control (also known as a remote or clicker) is an electronic device used to operate another device from a distance, usually wirelessly. In consumer electronics, a remote control can be used to operate devices such as a television set, DVD player or other home appliance. A remote control can allow operation of devices that are out of convenient reach for direct operation of controls. They function best when used from a short distance. This is primarily a convenience feature for the user. In some cases, remote controls allow a person to operate a device that they otherwise would not be able to reach, as when a garage door opener is triggered from outside. Early television remote controls (1956–1977) used ultrasonic tones. Present-day remote controls are commonly consumer infrared devices which send digitally-coded pulses of infrared radiation. They control functions such as power, volume, channels, playback, track change, heat, fan speed, and vario ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stereo Sound
Stereophonic sound, or more commonly stereo, is a method of sound reproduction that recreates a multi-directional, 3-dimensional audible perspective. This is usually achieved by using two independent audio channels through a configuration of two loudspeakers (or stereo headphones) in such a way as to create the impression of sound heard from various directions, as in natural hearing. Because the multi-dimensional perspective is the crucial aspect, the term ''stereophonic'' also applies to systems with more than two channels or speakers such as quadraphonic and surround sound. Binaural sound systems are also ''stereophonic''. Stereo sound has been in common use since the 1970s in entertainment media such as broadcast radio, recorded music, television, video cameras, cinema, computer audio, and internet. Etymology The word ''stereophonic'' derives from the Greek (''stereós'', "firm, solid") + (''phōnḗ'', "sound, tone, voice") and it was coined in 1927 by Western E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Race For Your Life, Charlie Brown
''Race for Your Life, Charlie Brown'' is a 1977 American animated adventure comedy film produced by United Feature Syndicate for Paramount Pictures, directed by Bill Melendez and Phil Roman, and the third in a series of films based on the ''Peanuts'' comic strip. It was the first ''Peanuts'' feature-length film produced after the death of composer Vince Guaraldi, who was originally intended to score the film, and used the same voice cast from the 1975 and 1976 TV specials, ''You're a Good Sport, Charlie Brown'', '' Happy Anniversary, Charlie Brown'', and ''It's Arbor Day, Charlie Brown'', and the same voice cast member from the 1974 TV special, '' It's a Mystery, Charlie Brown''. However, Liam Martin voiced Linus van Pelt for the last time in the movie, and went on to voice Charlie Brown in the 1978 TV special, ''What a Nightmare, Charlie Brown!''. This would be Stuart Brotman's final role before his death from a brain aneurysm in 2011. The film received mixed-to-positive revi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Locked Groove
The overwhelming majority of records manufactured have been of certain sizes (7, 10, or 12 inches), playback speeds (33, 45, or 78 RPM), and appearance (round black discs). However, since the commercial adoption of the gramophone record (called a phonograph record in the U.S., where both cylinder records and disc records were invented), a wide variety of records have also been produced that do not fall into these categories, and they have served a variety of purposes. Unusual sizes The most common diameter sizes for gramophone records are 12-inch, 10-inch, and 7-inch. Early American shellac records were all 7-inch until 1901, when 10-inch records were introduced. 12-inch records joined them in 1903. By 1910, other sizes were retired and nearly all discs were either 10-inch or 12-inch, although both sizes were normally a bit smaller than their official diameter. In Europe, early 10-inch and 12-inch shellac records were produced in the first three decades of the twentieth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Get Smart
''Get Smart'' is an American comedy television series parodying the secret agent genre that had become widely popular in the first half of the 1960s, with the release of the ''James Bond'' films. It was created by Mel Brooks and Buck Henry, and had its television premiere on NBC on September 18, 1965. It stars Don Adams (who was also a director on the series) as agent Maxwell Smart (Agent 86), Barbara Feldon as Agent 99, and Edward Platt as The Chief. Henry said that they created the show at the request of Daniel Melnick to capitalize on James Bond and Inspector Clouseau, "the two biggest things in the entertainment world today". Brooks described it as "an insane combination of James Bond and Mel Brooks comedy". The show generated a number of popular catchphrases during its run, including "would you believe...", "missed it by ''that much''", "sorry about that, Chief", "...and ''loving'' it". The show was followed by the films ''The Nude Bomb'' (a 1980 theatrical film made witho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Video High Density
Video High Density (VHD) is an analog videodisc format which was marketed predominantly in Japan by JVC. There was also a digital audio-only variant, Audio High Density (AHD; not released/canceled). Technology VHD discs are in diameter, and store up to 60 minutes of video per side. Each disc is stored in a caddy—like the CED system from RCA, also known as SelectaVision VideoDisc, the user never handled the disc directly. The entire caddy is inserted into the player, and then withdrawn, leaving the disc inside where it will be loaded and start playing. At the end of the side the disc must be removed, turned over and re-inserted. Like the RCA system, the signal is recorded on the discs as variations in capacitance, a conductive coating on the disc itself forming part of a resonant circuit. A diamond stylus reads the signal, though unlike CED there are no actual grooves—the stylus follows the tracks electronically, like a compact disc. This means less wear, though there ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SelectaVision
SelectaVision was a trademark name used on four classes of device by RCA: * The Holotape, a prototype video medium * Magnetic tape * VHS videocassette recorders, and * Capacitance Electronic Disc videodisc players and the discs themselves. Capacitance Electronic Disc's competitors, Philips/Magnavox and Pioneer, instead manufactured optical discs, read with lasers. On April 4, 1984, RCA, having sold only 550,000 players, ended sales, losing $580 million. The losses resulted in General Electric's acquisition of RCA in 1986, and the "SelectaVision" brand was abandoned. See also *Video High Density (JVC, 1970) * Electronic Video Recording (CBS, 1967) *Phonovision (Baird, 1928) *Vitascan (DuMont, 1949) References External linksSelectaVision page on Total Rewind - the Virtual Museum of Vintage VCRs Discontinued media formats Video storage RCA brands Television technology Trademarks RCA The RCA Corporation was a major American electronics company, which was founded as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
