 An American family watching television in the 1950s. Television is a telecommunication system for broadcasting and receiving moving pictures and sound over a distance. The term has come to refer to all the aspects of television programming and transmission as well. The word television is a hybrid word, coming from both Greek and Latin. "Tele-" is Greek for "far", while "-vision" is from the Latin "visio", meaning "vision" or "sight". It is often abbreviated as TV. Download high resolution version (688x640, 52 KB)Source: http://geekphilosopher. ...
Download high resolution version (688x640, 52 KB)Source: http://geekphilosopher. ...
Telecommunication is the extension of communication over a distance. ...
Note: broadcasting is also the old term for hand sowing. ...
A word that has one part derived from one language and another part derived from a different language is etymologically called hybrid. ...
The Greek language (Greek Ελληνικά, IPA // – Hellenic) is an Indo-European language with a documented history of some 3,000 years. ...
Latin - Wikipedia /**/ @import /skins/monobook/IE50Fixes. ...
Vision can refer to: Visual perception is one of the senses. ...
Visual perception is one of the senses, consisting of the ability to detect light and interpret (see) it as the perception known as sight or naked eye vision. ...
Abbreviation (from Latin brevis short) is strictly a shortening, but more particularly, an abbreviation is a letter or group of letters, taken from a word or words, and employed to represent them for the sake of brevity. ...
History The development of television technology can be partitioned along two lines: those developments that depended upon both mechanical and electronic principles, and those which are purely electronic. From the latter descended all modern televisions, but these would not have been possible without discoveries and insights from the mechanical systems.
Electromechanical television Paul Gottlieb Nipkow proposed and patented the first electromechanical television system in 1884. Nipkow's spinning disk design is credited with being the first television image rasterizer, but it is believed that he never built a prototype to prove the design (it wasn't until 1907 that developments in amplification tube technology made the design practical). Meanwhile, Constantin Perskyi had coined the word television in a paper read to the International Electricity Congress at the International World Fair in Paris on August 25, 1900. Perskeyi's paper reviewed the existing electromechanical technologies, mentioning the work of Nipkow and others. Paul Gottlieb Nipkow (August 22, 1860 - August 24, 1940) was a German engineer, who devised a mechanical apparatus, a spinning disk to scan images that was used in early television. ...
In engineering, electromechanical devices are those that combine electrical and mechanical parts. ...
1884 is a leap year starting on Tuesday (click on link to calendar). ...
1907 was a common year starting on Tuesday (see link for calendar). ...
Constantin Perskyi was a Russian scientist who is credited with coining the word television in a paper read (in French) to the 1900 Paris World Exhibitions 1st International Congress of Electricity. ...
The Exposition Universelle of 1900 was a worlds fair held in Paris, France, to celebrate the achivements of the past century and to accelerate development into the next. ...
August 25 is the 237th day of the year in the Gregorian Calendar (238th in leap years), with 128 days remaining. ...
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From 1907 to 1910, Boris Rosing and his student Vladimir Zworykin demonstrated a television system that used a mechanical mirror-drum scanner in the transmitter and the electronic Braun tube (cathode ray tube) in the receiver. Rosing disappeared during the Bolshevik revolution of 1917, but Zworykin later went to work for RCA to build a purely electronic television, the design of which was eventually found to violate patents by Philo Taylor Farnsworth. 1910 was a common year starting on Saturday (see link for calendar). ...
Boris Lvovich Rosing (Бори́с Льво́вич Ро́зинг, 1869 - 1933) was a Russian scientist and inventor in the field of television. ...
Vladimir Kosma Zworykin (July 30, 1889 - July 29, 1982) was a pioneer of television technology. ...
The cathode ray tube or CRT, invented by Karl Ferdinand Braun, is the display device used in most computer displays, video monitors, televisions and oscilloscopes. ...
The October Revolution, also known as the Bolshevik Revolution, was the second phase of the Russian Revolution, the first having been instigated by the events around the February Revolution. ...
1917 was a common year starting on Monday (see link for calendar). ...
RCA, formerly an initialism for the Radio Corporation of America, is now a trademark used by two companies for products descended from that common ancestor: Thomson Consumer Electronics, which manufactures RCA-branded televisions, DVD players, video cassette recorders, direct broadcast satellite decoders, camcorders, audio equipment, telephones, and related accessories; and...
This article needs cleanup. ...
A semi-mechanical analogue television system was first demonstrated in London in February 1924 by John Logie Baird with an image of Felix the Cat and a moving picture by Baird on October 30, 1925. In 1928 Baird's company (Baird Television Development Company / Cinema Television) broadcast the first transatlantic Television signal, between London and New York, and the first shore to ship transmission. He also demonstrated an Electromechanical colour, infrared (dubbed "Noctovision"), and stereoscopic television, using additional lenses, disks and filters. In parallel he developed a video disk recording system dubbed "Phonovision"; a number of the Phonovision[1] (http://www.tvdawn.com/tvimage.htm) recordings, dating back to 1927, still exist. In 1929 he became involved in the first experimental Electromechanical television service in Germany. In 1931 he made the first live transmission, of the Epsom Derby. In 1932 he demonstrated ultra-short wave television. Baird's system was eventually adopted by the BBC, who later discontinued its use in 1937 in favor of purely electronic television. Analog television encodes picture information by varying the voltages and/or frequency of the signal. ...
London — containing the City of London — is the capital of the United Kingdom and of England and a major world city. With over seven million inhabitants (Londoners) in Greater London area, it is amongst the most densely populated areas in Western Europe. ...
February is the second month of the year in the Gregorian Calendar. ...
1924 was a leap year starting on Tuesday (link will take you to calendar). ...
John Logie Baird (b. ...
Felix the Cat in a 1936 Technicolor video capture from one of the three Van Beuren Studios outings. ...
October 30 is the 303rd day of the year (304th in leap years) in the Gregorian Calendar, with 62 days remaining. ...
Events January-May January 3 - Benito Mussolini announces he is taking dictatorial powers over Italy. ...
1928 was a leap year starting on Sunday (link will take you to calendar). ...
Events January 7 - First transatlantic telephone call - New York City to London January 9 - Military rebellion crushed in Lisbon January 14 - Paul Doumer elected president of France January 19 - Britain sends troops to China February 12 - First British troops lad on Shanghai February 14 - Earthquake in Yugoslavia - 700 dead February...
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1937 was a common year starting on Friday (link will take you to calendar). ...
Electronic television Although the discoveries of Nipkov, Rosing, Baird and others were extraordinary, little of their technology is used in modern television. By 1934, all electromechanical television systems were outmoded.
A.A. Campbell-Swinton wrote a letter to Nature on the 18 June 1908 describing his concept of electronic television using the cathode ray tube invented by Karl Ferdinand Braun. He proposed using an electron beam in both the camera and the receiver, which could be steered electronically to produce moving pictures. He lectured on the subject in 1911 and displayed circuit diagrams, but no one, including Swinton, knew how to realize the design. His system was never built. Alan Archibald Campbell-Swinton (1863 - 1930) was a consulting electrical engineer born in Edinburgh. ...
Nature is one of the oldest and most reputable general-purpose scientific journals, first published on November 4, 1869. ...
June 18 is the 169th day of the year in the Gregorian Calendar (170th in leap years), with 196 days remaining. ...
1908 is a leap year starting on Wednesday (link will take you to calendar). ...
The cathode ray tube or CRT, invented by Karl Ferdinand Braun, is the display device used in most computer displays, video monitors, televisions and oscilloscopes. ...
Karl Ferdinand Braun (June 6, 1850 - April 20, 1918) was a German physicist, born in Fulda. ...
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A fully electronic system was first demonstrated by Philo Taylor Farnsworth in the autumn of 1927. Farnsworth, a Mormon farm boy from Rigby, Idaho, first envisioned his system at age 14. He discussed the idea with his high school chemistry teacher, who could think of no reason why it would not work (Farnsworth would later credit this teacher, Justin Tolman, as providing key insights into his invention). He continued to pursue the idea at Brigham Young Academy (now Brigham Young University). At age 21, he demonstrated a working system at his own laboratory in San Francisco. His breakthrough freed television from reliance on spinning discs and other mechanical parts. All modern picture tube televisions descend directly from his design. This article needs cleanup. ...
Events January 7 - First transatlantic telephone call - New York City to London January 9 - Military rebellion crushed in Lisbon January 14 - Paul Doumer elected president of France January 19 - Britain sends troops to China February 12 - First British troops lad on Shanghai February 14 - Earthquake in Yugoslavia - 700 dead February...
The term Mormon is a colloquial name, most-often used to refer to members of The Church of Jesus Christ of Latter-day Saints (LDS Church). ...
Rigby is a city located in Jefferson County, Idaho. ...
This is an article on a university; for the German airport (IATA-Code BYU) see Bindlacher Berg Airport. ...
Vladimir Zworykin is also sometimes cited as the father of electronic television because of his invention of the iconoscope in 1923 and his invention of the kinescope in 1929. His design was one of the first to demonstrate a television system with all the features of modern picture tubes. His previous work with Rosing on electromechanical television gave him key insights into how to produce such a system, but his (and RCA's) claim to being its original inventor was largely invalidated by three facts: a) Zworykin's 1923 patent presented an incomplete design, incapable of working in its given form (it was not until 1933 that Zworykin achieved a working implementation), b) the 1923 patent application was not granted until 1938, and not until it had been seriously revised, and c) courts eventually found that RCA was in violation of the television design patented by Philo Taylor Farnsworth, whose lab Zworykin had visited while working on his designs for RCA. Vladimir Kosma Zworykin (July 30, 1889 - July 29, 1982) was a pioneer of television technology. ...
The term kinescope originally referred to a type of early television picture tube. ...
This article needs cleanup. ...
The controversy over whether it was first Farnsworth or Zworykin who invented modern television is still hotly debated today. Some of this debate stems from the fact that while Farnsworth appears to have gotten there first, it was RCA that first marketed working television sets, and it was RCA employees who first wrote the history of television. Even though Farnsworth eventually won the legal battle over this issue, he was never able to fully capitalize financially on his invention.
Broadcast television
 Television antenna on a rooftop The first long distance public television broadcast was from Washington, DC to New York City and occurred on April 7, 1927. The image shown was of then Commerce Secretary Herbert Hoover. The first analogue service was WGY, Schenectady, New York inaugurated on May 11, 1928. The first British Television Play, "The Man with the Flower in his Mouth", was transmitted in July 1930. CBS's New York City station began broadcasting the first regular seven days a week television schedule in the U. S. on July 21, 1931. The first broadcast included Mayor James J. Walker, Kate Smith, and George Gershwin. The first all-electronic television service was started in Los Angeles, CA by Don Lee Broadcasting. Their start date was December 23, 1931 on W6XAO - later KTSL. Originally, mechanical equipment was used, but in June of 1936 a 300-line all-electronic service was started. Download high resolution version (512x768, 29 KB)Television antenna File links The following pages link to this file: Television Categories: GFDL images ...
Download high resolution version (512x768, 29 KB)Television antenna File links The following pages link to this file: Television Categories: GFDL images ...
Public broadcasting (also known as public service broadcasting or PSB) is the dominant form of broadcasting around the world, where radio, television, and potentially other electronic media outlets receive funding from the public. ...
April 7 is the 97th day of the year in the Gregorian calendar (98th in leap years). ...
Events January 7 - First transatlantic telephone call - New York City to London January 9 - Military rebellion crushed in Lisbon January 14 - Paul Doumer elected president of France January 19 - Britain sends troops to China February 12 - First British troops lad on Shanghai February 14 - Earthquake in Yugoslavia - 700 dead February...
Herbert Clark Hoover ( August 10, 1874 – October 20, 1964) is best known as being the 31st ( 1929- 1933) President of the United States. ...
Schenectady is a city located in Schenectady County, New York, of which it is the county seat. ...
May 11 is the 131st day of the year in the Gregorian Calendar (132nd in leap years). ...
1928 was a leap year starting on Sunday (link will take you to calendar). ...
1930 is a common year starting on Wednesday. ...
CBSs first color logo, which debuted in the fall of 1965. ...
July 21 is the 202nd day (203rd in leap years) of the year in the Gregorian Calendar, with 163 days remaining. ...
1931 is a common year starting on Thursday. ...
James J. Walker is more than one person: Jimmy Walker, mayor of NYC James J. Walker (boxer) This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ...
Kate Smith on the cover of a posthumous 1991 collection 16 Most Requested Songs Kate Smith (Kathryn Elizabeth Smith) (May 1, 1907–June 17, 1986) was an American singer best known for her rendition of Irving Berlins God Bless America. She greeted audiences with Hello, everybody! and signed off...
George Gershwin photograph by Edward Steichen in 1927. ...
December 23 is the 357th day of the year in the Gregorian Calendar (358th in leap years). ...
1931 is a common year starting on Thursday. ...
In Germany, regular service started on March 22, 1935, and one year later, the Berlin Summer Olympic Games were televised to places in Berlin and Hamburg. The Federal Republic of Germany (German: Bundesrepublik Deutschland) is one of the worlds leading industrialised countries, located in the heart of Europe. ...
March 22 is the 81st day of the year in the Gregorian Calendar (82nd in Leap years). ...
1935 was a common year starting on Tuesday (link will take you to calendar). ...
Berlin (pronounced: , German ) is the capital of Germany and its largest city, with 3,387,404 inhabitants (as of September 2004); down from 4. ...
The Summer Olympic Games are an international multi-sport event held every four years, organised by the International Olympic Committee. ...
This article is about the city in Germany. ...
In 1932 the BBC launched a service using Baird's 30-line system and these transmissions continued until 11 September 1935. On November 2, 1936 the BBC began broadcasting a dual-system service, alternating on a weekly basis between Marconi-EMI's high-resolution (405 lines per picture) service and Baird's improved 240-line standard from Alexandra Palace in London. Six months later, the corporation decided that Marconi-EMI's electronic picture gave the superior picture, and adopted that as their standard. This service is described as "the world's first regular high-definition public television service", since a regular television service had been broadcast earlier on a 180-line standard in Germany. The outbreak of the Second World War caused the service to be suspended. TV transmissions only resumed from Alexandra Palace in 1946. 1932 is a leap year starting on a Friday. ...
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September 11 is the 254th day of the year (255th in leap years). ...
1935 was a common year starting on Tuesday (link will take you to calendar). ...
November 2 is the 306th day of the year (307th in leap years) in the Gregorian Calendar, with 59 days remaining. ...
1936 was a leap year starting on Wednesday (link will take you to calendar). ...
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Alexandra Palace from the east Alexandra Palace was built on a hill in Muswell Hill in North London in 1873 as a public entertainment centre. ...
London — containing the City of London — is the capital of the United Kingdom and of England and a major world city. With over seven million inhabitants (Londoners) in Greater London area, it is amongst the most densely populated areas in Western Europe. ...
1946 was a common year starting on Tuesday. ...
The first regular television transmissions in Canada began in 1952 when the CBC put two stations on the air, one in Montreal, Quebec on September 6, and another in Toronto, Ontario two days later. Download high resolution version (480x640, 18 KB) Wikipedia does not have an article with this exact name. ...
Download high resolution version (480x640, 18 KB) Wikipedia does not have an article with this exact name. ...
The Federal Republic of Germany (German: Bundesrepublik Deutschland) is one of the worlds leading industrialised countries, located in the heart of Europe. ...
1958 was a common year starting on Wednesday (link will take you to calendar). ...
Canada is a sovereign state in northern North America, the northern-most country in the world, and the second largest in total area. ...
1952 - Wikipedia /**/ @import /skins/monobook/IE50Fixes. ...
CBC redirects here, as this is the most common use of the abbreviation. ...
This article needs cleanup. ...
September 6 is the 249th day of the year (250th in leap years). ...
Motto: Diversity Our Strength Map of Ontario Counties, Toronto being red Area: 641 sq. ...
September 8 is the 251st day of the year (252nd in leap years). ...
 Early portable television set The first live transcontinental television broadcast took place in San Francisco, California from the Japanese Peace Treaty Conference on September 4, 1951. In 1958, the CBC completed the longest television network in the world, from Sydney, Nova Scotia to Victoria, British Columbia. Reportedly, the first continuous live broadcast of a breaking news story in the world was conducted by the CBC during the Springhill Mining Disaster which began on October 23 of that year. Wikipedia does not have an article with this exact name. ...
Wikipedia does not have an article with this exact name. ...
This article is about the city in California. ...
Prime Minister Yoshida Shigeru of Japan, gave a speech on Reconciliation and rapport (和解と信頼) in 1951 at San Francisco Peace conference. ...
September 4 is the 247th day of the year (248th in leap years). ...
Global Metrics Human security Major Armed Conflicts: Total Deaths in Battle: 700,000 people Violent Deaths caused by Government (Other than War): Violent Deaths caused by other humans: Juvenile Violent Crime: Political security Nations Holding Multi-party Elections: Percentage Living under a Fully Democratic System of Governance: Free Countries: Percentage...
1958 was a common year starting on Wednesday (link will take you to calendar). ...
Sydney, Australia Sydney, North Dakota, United States of America Sydney is a former city in Nova Scotia, Canada located on its namesake harbour. ...
Victorias Inner Harbour with the Provincial Legislature in the background. ...
The Springhill Mining Disaster is the term often used to refer to three separate Canadian mining disasters which occurred in 1891, 1956, and 1958 in different mines within the Springhill coal field, in close proximity to the town of Springhill in Cumberland County, Nova Scotia. ...
October 23 is the 296th day of the year (297th in leap years) in the Gregorian Calendar, with 69 days remaining. ...
Programming is broadcast on television stations (sometimes called channels). At first, terrestrial broadcasting was the only way television could be distributed. Because bandwidth was limited, government regulation was normal. In the US, the Federal Communications Commission allowed stations to broadcast advertisements, but insisted on public service programming commitments as a requirement for a license. By contrast, the United Kingdom chose a different route, imposing a television licence fee on owners of television reception equipment, to fund the BBC, which had public service as part of its Royal Charter. Development of cable and satellite means of distribution in the 1970s pushed businessmen to target channels towards a certain audience, and enabled the rise of subscription-based television channels, such as HBO and Sky. Practically every country in the world now has developed at least one television channel. Television has grown up all over the world, enabling every country to share aspects of their culture and society with others. A television station is a type of radio station that broadcasts both audio and video to television receivers in a particular area. ...
The Federal Communications Commission (FCC) is an independent United States government agency, created, directed, and empowered by Congressional statute. ...
The United Kingdom of Great Britain and Northern Ireland is a country in western Europe, and member of the Commonwealth of Nations, the G8, the European Union, and NATO. Usually known simply as the United Kingdom, the UK, or (inaccurately) as Great Britain or Britain, the UK has four constituent...
A television licence is an official licence required in some countries for all owners of a television receiver. ...
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In the United Kingdom and Canada a Royal Charter is a charter granted by the Sovereign on the advice of the Privy Council, which creates or gives special status to an incorporated body. ...
Events and trends Although in the United States and in many other Western societies the 1970s are often seen as a period of transition between the turbulent 1960s and the more conservative 1980s and 1990s, many of the trends that are associated widely with the Sixties, from the Sexual Revolution...
For alternate meanings of HBO, see HBO (disambiguation). ...
British Sky Broadcasting (BSkyB - formerly two companies, Sky Television and British Satellite Broadcasting, which merged) is a company that operates the most popular subscription television service in the Ireland. ...
By the late 1980s, 98% of all homes in the U.S. had at least one TV set. On average, Americans watch four hours of television per day. An estimated two-thirds of Americans got most of their news about the world from TV, and nearly half got all of their news from TV. These figures are now estimated to be significantly higher. Events and trends The 1980s marked an abrupt shift towards more conservative lifestyles after the momentous cultural revolutions which took place in the 1960s and 1970s and the definition of the AIDS virus in 1981. ...
Technology
Broadcasting See broadcast television systems. There are several broadcast television systems in use in the world today. ...
There are many means of distributing television broadcasts, including both analogue and digital versions of:
Terrestrial television (also known as over-the-air or OTA) is the traditional method of television broadcast signal delivery, by radio waves. ...
Stratovision is a airborne television transmission relay system from aircraft flying at high altitudes. ...
Satellite television is television delivered by way of orbiting communications satellites located 37,000 km (22,300 miles) above the earths surface. ...
Cable television or Community Antenna Television (CATV) (and often shortened to cable) is a system of providing television, FM radio programming and other services to consumers via radio waves transmitted directly to people’s televisions through fixed coaxial cables as opposed to the over-the-air method used in traditional...
Multichannel multipoint distribution service, also known as MMDS or wireless cable, is a wireless telecommunications technology, used for general-purpose broadband networking or, more commonly, as an alternative method of cable television programming reception. ...
Receiving
TV sets The earliest television sets were radios with the addition of a television device consisting of a neon tube with a mechanically spinning disk (the Nipkow disk, invented by Paul Gottlieb Nipkow) that produced a red postage-stamp size image . The first publicly broadcast electronic service was in Germany in March 1935. It had 180 lines of resolution and was only available in 22 public viewing rooms. One of the first major broadcasts involved the 1936 Berlin Olympics. The Germans had a 441-line system in the autumn of 1937. (Source: Early Electronic TV (http://www.earlytelevision.org/pendleton_paper.html)) This page is about the chemical element. ...
A Nipkow disk is a mechanical, geometrically operating image scanning device (by itself, it performs neither image acquisition or reproduction), invented by Paul Gottlieb Nipkow, which was primarily used as a fundamental component in mechanical television. ...
Paul Gottlieb Nipkow (August 22, 1860 - August 24, 1940) was a German engineer, who devised a mechanical apparatus, a spinning disk to scan images that was used in early television. ...
The Federal Republic of Germany (German: Bundesrepublik Deutschland) is one of the worlds leading industrialised countries, located in the heart of Europe. ...
1935 was a common year starting on Tuesday (link will take you to calendar). ...
The Games of the XI Olympiad were held in 1936 in Germany. ...
1937 was a common year starting on Friday (link will take you to calendar). ...
Television usage skyrocketed after World War II with war-related technological advances and additional disposable income. Prior to the war, in the 1930s, TV receivers cost the equivalent of US$7000 in 2001, and had little available programming. Rotary dial-tune TVs were the earliest method of channel tuning until it became obsolete in the 90's. Events and trends Technology Jet engine invented Science Nuclear fission discovered by Otto Hahn, Lise Meitner and Fritz Strassmann Pluto, the ninth planet from the Sun, is discovered by Clyde Tombaugh British biologist Arthur Tansley coins term ecosystem War, peace and politics Socialists proclaim The death of Capitalism Rise to...
The United States dollar is the official currency of the United States. ...
2001 is a common year starting on Monday of the Gregorian calendar. ...
A rotary dial-tune TV is outdated technology for a television set. ...
For many years different countries used different technical standards. France initially adopted the German 441-line standard but later upgraded to 819 lines, which gave the highest picture definition of any analogue TV system, approximately four times the resolution of the British 405-line system. Eventually the whole of Europe switched to the 625-line standard, once more following Germany's example. Meanwhile in North America the original 525-line standard was retained. The French Republic or France (French: République française or France) is a country whose metropolitan territory is located in western Europe, and which is further made up of a collection of overseas islands and territories located in other continents. ...
The United Kingdom of Great Britain and Northern Ireland is a country in western Europe, and member of the Commonwealth of Nations, the G8, the European Union, and NATO. Usually known simply as the United Kingdom, the UK, or (inaccurately) as Great Britain or Britain, the UK has four constituent...
 A television with a VHF "rabbit ears" antenna and a loop UHF antenna. Television in its original and still most popular form involves sending images and sound over radio waves in the VHF and UHF bands, which are received by a receiver (a television set). In this sense, it is an extension of radio. Broadcast television requires an antenna (aerial). This can be an external antenna mounted outside or smaller antennas mounted on or near the television. Typically this is an adjustable dipole antenna called "rabbit ears" for the VHF band and a small loop antenna for the UHF band. tv with vhf and uhf antenna File links The following pages link to this file: Television Categories: GFDL images ...
tv with vhf and uhf antenna File links The following pages link to this file: Television Categories: GFDL images ...
Very high frequency (VHF) is the radio frequency range from 30 MHz (wavelength 10 m) to 300 MHz (wavelength 1 m). ...
This article is about the radio frequency. ...
Radio transmission diagram and electromagnetic waves Radio is a technology that allows the transmission of signals by modulation of electromagnetic waves with frequencies below those of light. ...
A yagi antenna Most simply, an antenna is an electronic component designed to send or receive radio waves. ...
Look up Aerial in Wiktionary, the free dictionary Aerial may refer to— a dance move. ...
A dipole antenna is an antenna with two driven elements. ...
Very high frequency (VHF) is the radio frequency range from 30 MHz (wavelength 10 m) to 300 MHz (wavelength 1 m). ...
Some early television sets, especially British ones, contained valves and other pre-solid state electronic components which generated a considerable amount of heat even when the set was switched off. As a result, up until at least the mid-1970s, television stations would air announcements reminding viewers to unplug their sets before going to bed for the night, since the heat build-up in the back of the set was a considerable fire hazard. In physics, the solid state is one of the three phases of matter (solid, liquid, and gas). ...
Look up Electronic in Wiktionary, the free dictionary Electronic can refer to many things: Objects related to electronics The band Electronic. ...
Heat (abbreviated Q, also called heat change) is the transfer of thermal energy between two bodies which are at different temperatures. ...
A fire hazard is considered to exist where there is a danger of a fire breaking out or spreading quickly. ...
Color television became available in the U.S. on December 30 of 1953, backed by the Columbia Broadcasting System (CBS) network. The government approved the color broadcast system proposed by CBS, but when RCA came up with a subcarrier system that made it possible to view color broadcasts in black and white on unmodified old black and white TV sets, CBS dropped their own proposal and used the new one (see NTSC). December 30 is the 364th day of the year (365th in leap years) in the Gregorian Calendar, with 1 day remaining. ...
1953 is a common year starting on Thursday. ...
CBSs first color logo, which debuted in the fall of 1965. ...
For alternative meanings, see color (disambiguation). ...
RCA, formerly an initialism for the Radio Corporation of America, is now a trademark used by two companies for products descended from that common ancestor: Thomson Consumer Electronics, which manufactures RCA-branded televisions, DVD players, video cassette recorders, direct broadcast satellite decoders, camcorders, audio equipment, telephones, and related accessories; and...
A subcarrier is separate analog or digital signal carried on a main radio transmission, which carries extra information such as voice or data. ...
NTSC is the analog television system in use in the United States and many other countries, including most of the Americas and some parts of East Asia. ...
The first publicly announced experimental TV broadcast of a program using RCA's "compatible color" system was an episode of Kukla, Fran and Ollie on August 30, 1953. NBC was the first network to have a regularly scheduled color program on the air (Bonanza, starting in 1959). Kukla, Fran and Ollie, was an early television show using puppets, originally created for children but soon watched by more adults than children. ...
The National Broadcasting Company or NBC is an American television broadcasting company based in New York Citys Rockefeller Center. ...
This article discusses the television program. ...
1959 was a common year starting on Thursday (link will take you to calendar). ...
European color television was developed somewhat later and was hindered by a continuing division on technical standards. Having decided to adopt a higher-definition 625-line system for monochrome transmissions, with a lower frame rate but with a higher overall bandwidth, Europeans could not directly adopt the US color standard, which was widely perceived as wanting anyway, because of its tint control problems. There was no urgency either, since there were still few sets overall and no commercial motivations, European television broadcasters being state-owned at the time. The refresh rate (or vertical refresh rate, vertical scan rate) is the maximum number of frames that can be displayed on a monitor in a second, expressed in Hertz. ...
Since the NTSC color television standard is susceptible to color errors, there is a tint control on NTSC television sets, which allows the image hue to be corrected. ...
As a consequence, although work on various color encoding systems started already in the 1950s, with the first SECAM patent being registered in 1956, many years have passed till the first broadcasts actually started in 1967. Unsatisfied with the performance of NTSC and of initial SECAM implementations, the Germans decided to create PAL at the beginning of the 1960s, staying closer to NTSC but borrowing some ideas from SECAM. The French continued with SECAM, notably involving Russians in the development. Events January January 5 - US Senator Estes Kefauver introduces a resolution calling for examination of organized crime in the USA January 6 - The United Kingdom recognizes the Peoples Republic of China. ...
SÉCAM (Séquentiel couleur à mémoire, French for sequential colour with memory) is an analog color television system first used in France. ...
1956 is a leap year starting on Sunday. ...
1967 was a common year starting on Sunday (the link is to a full 1967 calendar). ...
For other meanings of PAL see PAL (disambiguation). ...
1960 was a leap year starting on Friday (link will take you to calendar). ...
The first color broadcast in Europe was by BBC2 in the UK in the summer of 1967, using PAL. Germans did their first broadcast in September (PAL), while the French in October (SECAM). PAL was eventually adopted by West Germany, the UK, Australia, New Zealand, much of Africa, Asia and South America, and most Western European countries except France. Apart for France and Luxembourg, SECAM was adopted by Soviet Union, much of Eastern Europe, much of Africa and of the Middle East. Both systems broadcast on UHF frequencies, the VHF being used for legacy black & white, 405 lines in UK or 819 lines in France, till the beginning of the eighties! BBC Two (or BBC2 as it was formerly styled) was the second UK television station to be aired by the BBC. History The channel was scheduled to begin at 7:20pm on April 20, 1964 and show an evening of light entertainment, starting with the comedy show The Alberts and...
1967 was a common year starting on Sunday (the link is to a full 1967 calendar). ...
West Germany was the informal but almost universally used name for the Federal Republic of Germany from 1949 until 1990, during which years the Federal Republic did not yet include East Germany. ...
The United Kingdom of Great Britain and Northern Ireland is a country in western Europe, and member of the Commonwealth of Nations, the G8, the European Union, and NATO. Usually known simply as the United Kingdom, the UK, or (inaccurately) as Great Britain or Britain, the UK has four constituent...
Australia, officially the Commonwealth of Australia, is the sixth-largest country in the world, the only country to occupy an entire continent, and the largest in the region of Australasia/Oceania. ...
New Zealand is an independent sovereign state in the south-western Pacific Ocean. ...
World map showing location of Africa A satellite composite image of Africa Africa is the worlds second-largest continent in both area and population, after Asia. ...
World map showing location of Asia A satellite composite image of Asia Asia is the central and eastern part of the continent of Eurasia, defined by subtracting the European peninsula from Eurasia. ...
South America South America is a continent crossed by the equator, with most of its area in the Southern Hemisphere. ...
Western Europe is distinguished from Eastern Europe by differences of history and culture rather than by geography. ...
The French Republic or France (French: République française or France) is a country whose metropolitan territory is located in western Europe, and which is further made up of a collection of overseas islands and territories located in other continents. ...
The Grand Duchy of Luxembourg is a small landlocked state in the north-west of the continental European Union, bordered by France, Germany and Belgium. ...
Soviet Union - Wikipedia /**/ @import /skins/monobook/IE50Fixes. ...
Eastern Europe is, by convention, that part of Europe from the Ural and Caucasus mountains in the East to an arbitrarily chosen boundary in the West. ...
World map showing location of Africa A satellite composite image of Africa Africa is the worlds second-largest continent in both area and population, after Asia. ...
This article is about the radio frequency. ...
Very high frequency (VHF) is the radio frequency range from 30 MHz (wavelength 10 m) to 300 MHz (wavelength 1 m). ...
Starting in the 1990s, modern television sets diverged into three different trends: Events and trends Technology Explosive growth of the Internet; decrease in the cost of computers and other technology Reduction in size and cost of mobile phones leads to a massive surge in their popularity Year 2000 problem (commonly known as Y2K) Microsoft Windows operating system becomes virtually ubiquitous on IBM...
- standalone TV sets;
- integrated systems with DVD players and/or VHS VCR capabilities built into the TV set itself (mostly for small size TVs with up to 17" screen, the main idea is to have a complete portable system);
- component systems with separate big-screen video monitor, tuner, audio system which the owner connects the pieces together as a high-end home theater system. This approach appeals to videophiles who prefer components that can be upgraded separately.
There are many kinds of video monitors used in modern TV sets. The most common are direct view CRTs for up to 40 inch or 100 cm (in 4:3) and 46 inch or 115 cm (in 16:9) diagonally; most big screen TVs (up to over 100 inch (254 cm)) use projection technology. Three types of projection systems are used in projection TVs: CRT-based, LCD-based, and DLP(reflective micromirror chip)-based. DVD is an optical disc storage media format that can be used for storing data, including movies with high video and sound quality. ...
Top view VHS cassette with US Quarter for scale Bottom view of VHS cassette with magnetic tape exposed The Video Home System, better known by its acronym VHS, is a recording and playing standard for video cassette recorders (VCRs), developed by JVC (ironically, with some of its critical technology under...
The video cassette recorder (or VCR, less popularly video tape recorder) is a type of video tape recorder that uses removable cassettes containing magnetic tape to record audio and video from a television broadcast so it can be played back later. ...
Nineteen inch (48 cm) CRT computer monitor A computer display, monitor or screen is a computer peripheral device capable of showing still or moving images generated by a computer and processed by a graphics card. ...
A tuner is a device to adjust the resonant frequency of an antenna or transmission line to work most efficiently at one frequency or band of frequencies. ...
Audio can mean: sound that can be heard electronics or other signals of frequencies audible to humans (about 20__20,000 Hz) broadcasting or reception of sound high_fidelity sound reproduction sound recording and reproduction in general I hear in Latin This is a disambiguation page — a navigational aid which lists other...
Home cinema, also called Home theater, seeks to reproduce cinema quality video and audio in the home. ...
Video is the technology of processing electronic signals representing moving pictures. ...
The cathode ray tube or CRT, invented by Karl Ferdinand Braun, is the display device used in most computer displays, video monitors, televisions and oscilloscopes. ...
In mathematics, diagonal has a geometric meaning, and a derived meaning as used in square tables and matrix terminology. ...
The word projection can mean more than one thing. ...
LCD redirects here. ...
Digital Light Processing (DLP) is a technology used in projectors and projection televisions. ...
Modern advances have brought flat screens to TV that use active matrix LCD or plasma display technology (this last one more uncommon and more expensive). Flat panel LCDs and plasma displays are as little as 4 inch or 10 cm thick and can be hung on a wall like a picture or put over a pedestal. They are multifunctional, because they are used like computer monitors too (VGA). An AMLCD (also known as active-matrix liquid crystal display) is a type of flat panel display, currently the overwhelming choice of notebook computer manufacturers, due to light weight, very good image quality, wide color gamut, and response time. ...
LCD redirects here. ...
A plasma display is an emissive flat panel display where light is created by phosphors excited by a plasma discharge between two flat panels of glass. ...
The word plasma has a Greek root which means to be formed or molded (the word plastic shares this root). ...
For the WWII naval operation, see Operation Pedestal Pedestal (from French piedestal, Italian piedestallo, foot of a stall) is a term generally applied to a support, square, octagonal or circular on plan, provided to carry a statue or a vase. ...
The tower of a personal computer (specifically a Power Mac G5). ...
Video Graphics Array (VGA) is a computer display standard first marketed in 1987 by IBM. VGA belongs to a family of earlier IBM video standards and largely remains backward compatible with them. ...
Nowadays some TVs integrates a pair of ports to connect computer cases and peripherals to it or to connect the set to an A/V home network (HAVI) (USB port, for cord connection and bluetooth/WiFi for wireless). A tower case featuring a modern design. ...
For an account of the words periphery and peripheral as they are used in biology, sociology, politics, computer hardware, and other fields, see the periphery disambiguation page. ...
Video is the technology of processing electronic signals representing moving pictures. ...
Home Audio Video Interoperability (HAVi) is a connection to control Audio and Video hardware using FireWire. ...
Note: USB may also mean upper sideband in radio. ...
This article is about the Bluetooth wireless specification. ...
Wi-Fi (or Wi-fi, WiFi, Wifi, wifi), short for Wireless Fidelity, is a set of standards for wireless local area networks (WLAN) currently based on the IEEE 802. ...
See also: Liquid crystal display television. Liquid crystal display television is, as indicated by its name, a television using LCD technology (generally TFT), as opposed to cathode ray or plasma for its visual output. ...
Even for simple video, there are six standard ways to connect a device. These are as follows: Video is the technology of processing electronic signals representing moving pictures. ...
- Component video - three separate connectors, with one brightness channel and two color channels, and is usually referred to as "Y, B-Y, R-Y", "Y Pr Pb", or YUV. This provides for high quality pictures and is usually used inside professional studios. However, it is being used more in home theater for DVDs and high-end sources. Audio is not carried on this cable.
- SCART - A large 21 pin connector that may carry composite video, S-Video or, for better quality, separate red, green and blue (RGB) signals and two-channel sound, along with a number of control signals. This system is standard in Europe but rarely found elsewhere.
- S-Video - two separate channels, one carrying brightness, the other carrying color. Also referred to as Y/C video. Provides most of the benefit of component video, with slightly less color fidelity. Use started in the 1980s for S-VHS, Hi-8, and early DVD players to relay high quality video. Audio is not carried on this cable.
- Composite video - The most common form of connecting external devices, putting all the video information into one signal. Most televisions provide this option with a yellow RCA jack. Audio is not carried on this cable, though two separate cables with similar red and white RCA jacks for right and left line-level audio are commonly bonded to composite video cables.
- Coaxial RF - All audio channels and picture components are transmitted through one coaxial cable and modulated on a radio frequency. Most TVs manufactured during the past 15-20 years accept coaxial connection, and the video is typically "tuned" on channel 3 or 4. This is the type of cable usually used for cable television. Unfortunately, many DVD players and some other components now fail to provide an RF coaxial output, forcing consumers to buy a somewhat expensive modulator in order to view it on older TV sets made before composite video jacks became commonplace.
Component video is a type of video information that is transmitted or stored as two or more separate signals (as opposed to composite video, such as NTSC or PAL, which is a single signal). ...
Example of U-V color plane, Y value = 0. ...
SCART plug SCART (from Syndicat des Constructeurs dAppareils Radiorécepteurs et Téléviseurs) is a French-originated standard and associated 21-pin connector for connecting audio and video equipment to television sets. ...
Composite video is the format of an analog television signal before it is modulated onto an RF carrier. ...
S-Video (also known as Y/C) is a baseband analog video format offering a higher quality signal than composite video, but a lower quality than RGB and component video. ...
The RGB color model utilizes the additive model in which red, green, and blue light are combined in various ways to create other colors. ...
World map showing location of Europe A satellite composite image of Europe Europe is geologically and geographically a peninsula, forming the westernmost part of Eurasia. ...
S-Video (also known as Y/C) is a baseband analog video format offering a higher quality signal than composite video, but a lower quality than RGB and component video. ...
Events and trends The 1980s marked an abrupt shift towards more conservative lifestyles after the momentous cultural revolutions which took place in the 1960s and 1970s and the definition of the AIDS virus in 1981. ...
S-VHS or Super VHS was an improved, backward-compatible version of the VHS standard for domestic video cassette recorders. ...
A 8mm Camcorder The 8mm Video Format (official name: Video8) is a type of video cassette recorder and video tape. ...
Composite video is the format of an analog television signal before it is modulated onto an RF carrier. ...
A panel of four RCA jacks, and three RCA (cinch; phono) plugs of various quality An RCA jack, also referred to as a phono connector or CINCH/AV connector, is a type of electrical connector which is commonly used in the audio/video market. ...
Line level is the strength of an audio signal used to transmit analog sound information between audio components such as CD and DVD players, TVs, amplifiers, and mixing consoles. ...
Coaxial cable is an electrical cable consisting of a round, insulated conducting wire, surrounded by an insulating spacer, surrounded by a cylindrical conducting sheath, usually surrounded by a final insulating layer. ...
For the musical use of modulation, see modulation (music). ...
Radio frequency, or RF, refers to that portion of the electromagnetic spectrum in which electromagnetic waves can be generated by alternating current fed to an antenna. ...
Cable television or Community Antenna Television (CATV) (and often shortened to cable) is a system of providing television, FM radio programming and other services to consumers via radio waves transmitted directly to people’s televisions through fixed coaxial cables as opposed to the over-the-air method used in traditional...
In economics, consumers are individuals or households that consume goods and services generated within the economy. ...
For the musical use of modulation, see modulation (music). ...
TV aspect ratio
 Rear projection, wide screen, 40 inch HDTV television All of these early TV systems shared the same aspect ratio of 4:3 which was chosen to match the Academy Ratio used in cinema films at the time. This ratio was also square enough to be conveniently viewed on round cathode-ray tubes (CRTs), which were all that could be produced given the manufacturing technology of the time. (Today's CRT technology allows the manufacture of much wider tubes, and the flat screen technologies which are becoming steadily more popular have no aspect ratio limitations at all.) Download high resolution version (2048x1536, 468 KB) I, the creator of this image, hereby release it into the public domain. ...
Download high resolution version (2048x1536, 468 KB) I, the creator of this image, hereby release it into the public domain. ...
The aspect ratio of an image is its displayed width divided by its height (usually expressed as x:y). For instance, the aspect ratio of a traditional television screen is 4:3, or 1. ...
The cathode ray tube or CRT, invented by Karl Ferdinand Braun, is the display device used in most computer displays, video monitors, televisions and oscilloscopes. ...
Manufacturing is the transformation of raw materials into finished goods for sale, or intermediate processes involving the production or finishing of semi-manufactures. ...
Technology ( Gr. ...
In the 1950s, movie studios moved towards wide-screen aspect ratios such as Cinerama in an effort to distance their product from television. Although this was just a gimmick, and many have argued that it is actually a disadvantage when showing objects that are tall instead of panoramic, wide-screen still is being pushed today. Events and trends Technology United States tests the first fusion bomb. ...
For other uses see film (disambiguation) Film refers to the celluliod media on which movies are printed Film — also called movies, the cinema, the silver screen, moving pictures, photoplays, picture shows, flicks, or motion pictures, — is a field that encompasses motion pictures as an art form or as part of...
A studio is an artists workroom. ...
The term panoramic format is used to refer to high aspect ratio or wide screen image format. ...
For the UK rock group, see: Cinerama (band) The original Cinerama system is a widescreen process which works by simultaneously projecting images from three synchronized projectors onto a huge, deeply-curved screen, subtending 146º of arc. ...
A gimmick is a unique or quirky special feature that makes something stand out from its contemporaries. ...
This article is about the artistic term Panorama. ...
The switch to digital television systems has been used as an opportunity to change the standard television picture format from the old ratio of 4:3 (1.33:1) to an aspect ratio of 16:9 (1.78:1). This enables TV to get closer to the aspect ratio of modern wide-screen movies, which range from 1.85:1 to 2.35:1. The 16:9 format was first introduced on "widescreen" DVDs. DVD provides two methods for transporting wide-screen content, the better of which uses what is called anamorphic wide-screen format. This format is very similar to the technique used to fit a wide-screen movie frame inside a 1.33:1 35mm film frame. The image is squashed horizontally when recorded, then expanded again when played back. The U.S. ATSC HDTV system uses straight wide-screen format, no image squashing or expanding is used. Digital television (DTV) uses digital modulation and compression to broadcast video, audio and data signals to television sets. ...
For other uses see film (disambiguation) Film refers to the celluliod media on which movies are printed Film — also called movies, the cinema, the silver screen, moving pictures, photoplays, picture shows, flicks, or motion pictures, — is a field that encompasses motion pictures as an art form or as part of...
DVD is an optical disc storage media format that can be used for storing data, including movies with high video and sound quality. ...
The process of creating a full screen anamorphic image, also known as a full height anamorphic image, involves taking a 16x9, or 1. ...
The Advanced Television Systems Committee (ATSC) is the group that helped to develop the new digital television standard for the United States, also adopted by Canada, Mexico and South Korea and being considered by other countries. ...
High-definition television (HDTV) means broadcast of television signals with a higher resolution than traditional formats (NTSC, SECAM, PAL) allow. ...
There is no technical reason why the introduction of digital TV demands this aspect ratio change, however it has been decided to introduce these changes for marketing reasons. There have appeared laptop computers that are equipped with the wide screen, and it remains to be seen whether work or movie enjoyment will take over; there are some complaints about distortions of picture ratio in these laptops due to the difficulty of setting the screen resolutions by the user. Laptop with touchpad. ...
Work in project management is the amount of effort applied to produce a deliverable or to accomplish a task (a terminal element). ...
Aspect ratio incompatibility Displaying a wide-screen original image on a conventional aspect television screen presents a considerable problem since the image must be shown either: - in "letterbox" format, with black stripes at the top and bottom
- with part of the image being cropped, usually the extreme left and right of the image being cut off (or in "pan and scan", parts selected by an operator)
- with the image horizontally compressed
A conventional aspect image on a wide screen television can be shown: This article is about wide video formats. ...
Pan and scan is a method of adjusting widescreen film images so that they can be shown within the proportions of an ordinary video screen. ...
- in "pillarbox" format, with black vertical bars to the left and right
- with upper and lower portions of the image cut off
- with the image horizontally distorted
A common compromise is to shoot or create material at an aspect ratio of 14:9, and to lose some image at each side for 4:3 presentation, and some image at top and bottom for 16:9 presentation.
Horizontal expansion has advantages in situations in which several people are watching the same set, as it compensates for watching at an oblique angle.
Sound See : NICAM. NICAM (known also as NICAM 728, after the 728 kbit/s bitstream it is sent over), Near Instantaneous Companded Audio Multiplex, is a format for digital sound over television. ...
New developments Digital television (DTV) uses digital modulation and compression to broadcast video, audio and data signals to television sets. ...
High-definition television (HDTV) means broadcast of television signals with a higher resolution than traditional formats (NTSC, SECAM, PAL) allow. ...
Ultra High Definition Video or UHDV is a digital video format, currently, proposed by NHK of Japan. ...
Direct broadcast satellite, or DBS, is a relatively recent development in the world of television distribution. ...
Pay-per-view is the name given to a system by which television viewers can call and order events to be seen on TV and pay for the private telecast of that event to their homes later. ...
Origins Because of the increase in Internet connection speeds and the total number of people online, and the decrease in connection costs; it is increasingly common to find traditional television content, accessible freely and legally over the Internet. ...
A web TV is a specially-adapted television set designed to allow internet connection, or more commonly, a set-top box (i. ...
Video on demand systems are systems which allow users to select and watch video content over a network as part of an interactive television system. ...
Picture in Picture (PIP) allows you to watch more than one TV program(channel) at the same time on television sets or other devices. ...
The personal video recorder (PVR), also called digital video recorder (DVR), is a consumer electronics device that records television shows to a hard disk in digital format. ...
DVD is an optical disc storage media format that can be used for storing data, including movies with high video and sound quality. ...
CableCARD is the trademarked term for the Point of Deployment module (POD) defined by standards including SCTE 28, SCTE 41, CEA-679 and others. ...
For political parties using this acronym, see Democratic Labour Party. ...
LCD redirects here. ...
A plasma display is an emissive flat panel display where light is created by phosphors excited by a pl |
