Electronics is a scientific and engineering discipline that studies and applies the principles of physics to design, create, and operate devices that manipulate electrons and other electrically charged particles . It is a subfield of physics and electrical engineering which uses active devices such as transistors , diodes , and integrated circuits to control and amplify the flow of electric current and to convert it from one form to another, such as from alternating current (AC) to direct current (DC) or from analog signals to digital signals.
71-396: Electronic news gathering (ENG) or electronic journalism (EJ) is usage of electronic video and audio technologies by reporters to gather and present news instead of using film cameras. The term was coined during the rise of videotape technology in the 1970s. ENG can involve anything from a single reporter with a single professional video camera, to an entire television crew taking
142-752: A high definition -quality content live. These devices are known as Digital Mobile News Gathering (DMNG). The ongoing technological evolution of broadcast video production equipment can be observed annually at the NAB Show in Las Vegas where equipment manufacturers gather to display their wares to people within the video production industry. The trend is toward lighter-weight equipment that can deliver more resolution at higher speeds. There has been an evolution from film to standard-definition television , high-definition television and now 4K . As of 2016, highlights included unmanned aerial vehicles aka drones for
213-432: A mass-production basis, which limited them to a number of specialised applications. The MOSFET was invented at Bell Labs between 1955 and 1960. It was the first truly compact transistor that could be miniaturised and mass-produced for a wide range of uses. Its advantages include high scalability , affordability, low power consumption, and high density . It revolutionized the electronics industry , becoming
284-520: A built-in ATSC tuner, the HM-DT100U, but it remains extremely rare, and therefore expensive. In July 2016, Funai Electric, the last remaining manufacturer of VHS VCR/DVD combo recorders, announced it would cease production of VHS recorders by the end of the month. As a result of winning the format war over HD DVD , the new high definition optical disc format Blu-ray Disc was expected to replace
355-404: A cause of random dew sensor warnings. Usually, a "DEW" indicator or error code lights up on the display of most VCRs/camcorders, and on some, a buzzer may sound. Magnetic tapes could be mechanically damaged when ejected from the machine due to moisture or other problems. Rubber drive belts and rollers hardened with age, causing malfunctions. Around the late '90s and early 2000s, DVDs became
426-482: A continuous audio signal. While the video signal can easily hide the head-switching point in the invisible vertical retrace section of the signal, so that the exact switching point is not very important, the same is obviously not possible with a continuous audio signal that has no inaudible sections. Hi-Fi audio is thus dependent on a much more exact alignment of the head switching point than is required for non-HiFi VHS machines. Misalignments may lead to imperfect joining of
497-693: A home recorder, whereas rental cassettes could not be rewound, and had to be returned to the retailer in order to be rewound. Sony demonstrated a videocassette prototype in October 1969, then set it aside to work out an industry standard by March 1970 with seven fellow manufacturers. The result, the Sony U-matic system, introduced in Tokyo in September 1971, was the world's first commercial videocassette format. Its cartridges, resembling larger versions of
568-410: A major income source. The video cassette recorder is sensitive to changes in temperature and humidity. If the machine (or tape) was moved from a hot to a colder environment there could be condensation of moisture on the internal parts, such as the rotating video head drum. Some later models were equipped with a dew warning which would prevent operation in this case, but it could not detect moisture on
639-566: A mix of the two types. Analog circuits are becoming less common, as many of their functions are being digitized. Analog circuits use a continuous range of voltage or current for signal processing, as opposed to the discrete levels used in digital circuits. Analog circuits were common throughout an electronic device in the early years in devices such as radio receivers and transmitters. Analog electronic computers were valuable for solving problems with continuous variables until digital processing advanced. As semiconductor technology developed, many of
710-615: A news event. Editing equipment was expensive and each scene had to be searched out on the master recording. Using technology such as multicast or RTP over UDP , these systems achieve similar performance to high end-microwave. Since the video stream is already encoded for IP, the video can be used for traditional television broadcast or Internet distribution without modification (live to air). As mobile broadband has developed, broadcast devices using this technology have appeared. These devices are often more compact than previous technology and can aggregate multiple mobile data lines to deliver
781-540: A physical space, although in more recent years the trend has been towards electronics lab simulation software , such as CircuitLogix , Multisim , and PSpice . Today's electronics engineers have the ability to design circuits using premanufactured building blocks such as power supplies , semiconductors (i.e. semiconductor devices, such as transistors), and integrated circuits. Electronic design automation software programs include schematic capture programs and printed circuit board design programs. Popular names in
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#1732787128016852-409: A piece of information," said 48 Hours executive producer Susan Zirinsky, whose team produced the primetime coverage that first night. "You were getting cameras up, you were putting people in place, you were trying to wrap your brain around it. You wanted to step back and synthesize some of the information, which is what we were trying to do ... At that point, we thought there were many more dead, and it
923-474: A protected, co-primary basis with Mobile Satellite Service (MSS) Ancillary Terrestrial Component (ATC) use of 2483.5-2495 MHz. Use of these channels is restricted by federal regulations to those holding broadcast licenses in the given market, to Broadcast Network-Entities, and to Cable Network-Entities. Channels 1 through 7 are in the 2 GHz band and channels 8, 9 and 10 are in the 2.5 GHz band. In Atlanta for example, there are two channels each for
994-531: A station in St. Louis, Mo., was the first to abandon film and switch entirely to ENG. Stations all over the country made the switch over the next decade. ENG greatly reduces the delay between when the footage is captured and when it can be broadcast, thus enabling news gathering and reporting to become steady cycle with little time in between when story breaks and when a story can air. Coupled with live microwave and/or satellite trucks, reporters were able to show live what
1065-422: A truck on location. The term ENG was created as television news departments moved from film-based news gathering to electronic field production technology in the 1970s. Since film requires chemical processing before it can be viewed and edited, it generally took at least an hour from the time the film arrived back at the television station or network news department until it was ready to be broadcast. Film editing
1136-625: Is a battery operated cassette recorder with a dynamic microphone and optional telephone interface. With this set-up, the reporter can record interviews and natural sound and then transmit these over the phone line to the studio or for live broadcast. Electronic formats used by journalists have included DAT , MiniDisc , CD and DVD. Minidisc has digital indexing and is re-recordable, reusable medium; while DAT has SMPTE timecode and other synchronization features. In recent years, more and more journalists have used smartphones or iPod -like devices for recording short interviews. The other alternative
1207-418: Is an electromechanical device that records analog audio and analog video from broadcast television or other AV sources and can play back the recording after rewinding. The use of a VCR to record a television program to play back at a more convenient time is commonly referred to as time shifting . VCRs can also play back prerecorded tapes, which were widely available for purchase and rental starting in
1278-548: Is defined as unwanted disturbances superposed on a useful signal that tend to obscure its information content. Noise is not the same as signal distortion caused by a circuit. Noise is associated with all electronic circuits. Noise may be electromagnetically or thermally generated, which can be decreased by lowering the operating temperature of the circuit. Other types of noise, such as shot noise cannot be removed as they are due to limitations in physical properties. Many different methods of connecting components have been used over
1349-421: Is one of the largest and most profitable sectors in the global economy, with annual revenues exceeding $ 481 billion in 2018. The electronics industry also encompasses other sectors that rely on electronic devices and systems, such as e-commerce, which generated over $ 29 trillion in online sales in 2017. The identification of the electron in 1897 by Sir Joseph John Thomson , along with the subsequent invention of
1420-595: Is the voltage comparator which receives a continuous range of voltage but only outputs one of two levels as in a digital circuit. Similarly, an overdriven transistor amplifier can take on the characteristics of a controlled switch , having essentially two levels of output. Analog circuits are still widely used for signal amplification, such as in the entertainment industry, and conditioning signals from analog sensors, such as in industrial measurement and control. Digital circuits are electric circuits based on discrete voltage levels. Digital circuits use Boolean algebra and are
1491-448: Is therefore the process of defining and developing complex electronic devices to satisfy specified requirements of the user. Due to the complex nature of electronics theory, laboratory experimentation is an important part of the development of electronic devices. These experiments are used to test or verify the engineer's design and detect errors. Historically, electronics labs have consisted of electronics devices and equipment located in
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#17327871280161562-508: Is using small field recorders with two condenser microphones. Electronics Electronic devices have hugely influenced the development of many aspects of modern society, such as telecommunications , entertainment, education, health care, industry, and security. The main driving force behind the advancement of electronics is the semiconductor industry , which in response to global demand continually produces ever-more sophisticated electronic devices and circuits. The semiconductor industry
1633-494: The 8-track cartridge in 1965, and the Super 8 home movie cartridge in 1966. In 1972, videocassettes of movies became available for home use through Cartrivision . The format never became widely popular because recorders were expensive (retailing for $ 1,350 (equivalent to $ 9,266 in 2023)) and players were not available as standalone units. Cassettes intended for home use were encased in black plastic, and could be rewound by
1704-449: The DVD format. However, with many homes still having a large supply of VHS tapes and with all Blu-ray players designed to play regular DVDs and CDs by default , some manufacturers began to make VCR/Blu-ray combo players. Due to the path followed by the video and Hi-Fi audio heads being striped and discontinuous—unlike that of the linear audio track—head-switching is required to provide
1775-624: The IBM 608 was the first IBM product to use transistor circuits without any vacuum tubes and is believed to be the first all-transistorized calculator to be manufactured for the commercial market. The 608 contained more than 3,000 germanium transistors. Thomas J. Watson Jr. ordered all future IBM products to use transistors in their design. From that time on transistors were almost exclusively used for computer logic circuits and peripheral devices. However, early junction transistors were relatively bulky devices that were difficult to manufacture on
1846-578: The Nottingham Industrial Museum . The half-inch tape Sony model CV-2000 , first marketed in 1965, was its first VTR intended for home use. It was the first fully transistorized VCR. The development of the videocassette followed the replacement by cassette of other open reel systems in consumer items: the Stereo-Pak four-track audio cartridge in 1962, the compact audio cassette and Instamatic film cartridge in 1963,
1917-441: The vacuum tube which could amplify and rectify small electrical signals , inaugurated the field of electronics and the electron age. Practical applications started with the invention of the diode by Ambrose Fleming and the triode by Lee De Forest in the early 1900s, which made the detection of small electrical voltages, such as radio signals from a radio antenna , practicable. Vacuum tubes (thermionic valves) were
1988-448: The 1960s, U.S. manufacturers were unable to compete with Japanese companies such as Sony and Hitachi who could produce high-quality goods at lower prices. By the 1980s, however, U.S. manufacturers became the world leaders in semiconductor development and assembly. However, during the 1990s and subsequently, the industry shifted overwhelmingly to East Asia (a process begun with the initial movement of microchip mass-production there in
2059-538: The 1970s), as plentiful, cheap labor, and increasing technological sophistication, became widely available there. Over three decades, the United States' global share of semiconductor manufacturing capacity fell, from 37% in 1990, to 12% in 2022. America's pre-eminent semiconductor manufacturer, Intel Corporation , fell far behind its subcontractor Taiwan Semiconductor Manufacturing Company (TSMC) in manufacturing technology. By that time, Taiwan had become
2130-487: The 1980s as more and more customers bought VCRs. By 1982, 10% of households in the United Kingdom owned a VCR. The figure reached 30% in 1985 and by the end of the decade well over half of British homes owned a VCR. The two major standards were Sony 's Betamax (also known as Betacord or just Beta), and JVC 's VHS (Video Home System), which competed for sales in what became known as the format war . Betamax
2201-475: The 1990s, the FCC made available some bands of spectrum as unlicensed channels. This included spectrum for cordless phones and Wi-Fi . As a result, some of these channels have been used for news gathering by websites and more informal news outlets. One major disadvantage of unlicensed use is that there is no frequency coordination, which can result in interference or blocking of signals. A common set-up for journalists
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2272-515: The 80s and 90s, most popularly in the VHS videocassette format. Blank tapes were sold to make recordings. VCRs declined in popularity during the 2000s and in 2016, Funai Electric, the last remaining manufacturer, ceased production. The history of the videocassette recorder follows the history of videotape recording in general. Ampex introduced the quadruplex videotape professional broadcast standard format with its Ampex VRX-1000 in 1956. It became
2343-712: The EDA software world are NI Multisim, Cadence ( ORCAD ), EAGLE PCB and Schematic, Mentor (PADS PCB and LOGIC Schematic), Altium (Protel), LabCentre Electronics (Proteus), gEDA , KiCad and many others. Heat generated by electronic circuitry must be dissipated to prevent immediate failure and improve long term reliability. Heat dissipation is mostly achieved by passive conduction/convection. Means to achieve greater dissipation include heat sinks and fans for air cooling, and other forms of computer cooling such as water cooling . These techniques use convection , conduction , and radiation of heat energy . Electronic noise
2414-612: The US include ATSC and QAM support, encouraged major electronics manufacturers to end production of standalone units, with VCR/DVD combo decks being made since then; most of them then can only record from external baseband sources (usually composite video ), including CECBs which (by NTIA mandate) all have composite outputs, as well as those ATSC tuners (including TVs) and cable boxes that come with composite outputs; some combo units that allow recording to DVD do include an ATSC tuner built into them. JVC did ship one model of D-VHS deck with
2485-529: The back of a broadcast video camera and allows photojournalists to live-switch a multi-camera production in studio or on location. Outside broadcasts (also known as "remote broadcasts" and "field operations") are when the editing and transmission of the news story are done outside the station's headquarters. Use of ENG has made possible the greater use of outside broadcasts. "Some stations have always required reporters to shoot their own stories, interviews and even standup reports and then bring that material back to
2556-409: The basis of all digital computers and microprocessor devices. They range from simple logic gates to large integrated circuits, employing millions of such gates. Digital circuits use a binary system with two voltage levels labelled "0" and "1" to indicated logical status. Often logic "0" will be a lower voltage and referred to as "Low" while logic "1" is referred to as "High". However, some systems use
2627-412: The cassette before the head drum stops spinning. The tape will be extensively damaged, the video heads will often become clogged, and the mechanism may be unable to eject the cassette. The dew sensor itself is mounted very close to the video head drum. Contrary to how one might expect this to behave, the sensor increases its resistance when moisture is present. Poor contacts on the sensor can therefore be
2698-459: The circuit, thus slowing the computer. The invention of the integrated circuit by Jack Kilby and Robert Noyce solved this problem by making all the components and the chip out of the same block (monolith) of semiconductor material. The circuits could be made smaller, and the manufacturing process could be automated. This led to the idea of integrating all components on a single-crystal silicon wafer, which led to small-scale integration (SSI) in
2769-475: The delivery of aerial footage, various lines of cameras that can deliver 4K resolution , graphics packages for news stations, which can be utilized inside their microwave and/or satellite vehicles, wireless technology, POV cameras and peripherals from GoPro and other action camera manufacturers, and the Odyssey 7Q+ monitor with Apollo multi-camera switcher/recorder from Convergent Design. This monitor fits on
2840-874: The early 1960s, and then medium-scale integration (MSI) in the late 1960s, followed by VLSI . In 2008, billion-transistor processors became commercially available. An electronic component is any component in an electronic system either active or passive. Components are connected together, usually by being soldered to a printed circuit board (PCB), to create an electronic circuit with a particular function. Components may be packaged singly, or in more complex groups as integrated circuits . Passive electronic components are capacitors , inductors , resistors , whilst active components are such as semiconductor devices; transistors and thyristors , which control current flow at electron level. Electronic circuit functions can be divided into two function groups: analog and digital. A particular device may consist of circuitry that has either or
2911-452: The electronic logic gates to generate binary states. Highly integrated devices: Electronic systems design deals with the multi-disciplinary design issues of complex electronic devices and systems, such as mobile phones and computers . The subject covers a broad spectrum, from the design and development of an electronic system ( new product development ) to assuring its proper function, service life and disposal . Electronic systems design
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2982-754: The film industry and the American public to the Boston strangler : I say to you that the VCR is to the American film producer and the American public as the Boston strangler is to the woman home alone. In the case Sony Corp. of America v. Universal City Studios, Inc. , the Supreme Court of the United States ruled that the device was allowable for private use. Subsequently the film companies found that making and selling video recordings of their productions had become
3053-523: The film into segments and then splicing them together, a common problem was film breaking during the newscast. News stories were often transferred to bulky 2-inch videotape for distribution and playback, which made the content cumbersome to access. Film remained important in daily news operations until the late 1960s, when news outlets adopted portable professional video cameras, portable recorders, wireless microphones and joined those with various microwave - and satellite truck -linked delivery systems. By
3124-544: The first active electronic components which controlled current flow by influencing the flow of individual electrons , and enabled the construction of equipment that used current amplification and rectification to give us radio , television , radar , long-distance telephony and much more. The early growth of electronics was rapid, and by the 1920s, commercial radio broadcasting and telecommunications were becoming widespread and electronic amplifiers were being used in such diverse applications as long-distance telephony and
3195-497: The first universally successful optical medium for playback of pre-recorded video, as it gradually overtook VHS to become the most popular consumer format. DVD recorders and other digital video recorders dropped rapidly in price, making the VCR obsolete. DVD rentals in the United States first exceeded those of VHS in June 2003. The declining market, combined with a US FCC mandate effective March 1, 2007, that all new TV tuners in
3266-562: The following ways: The electronics industry consists of various sectors. The central driving force behind the entire electronics industry is the semiconductor industry sector, which has annual sales of over $ 481 billion as of 2018. The largest industry sector is e-commerce , which generated over $ 29 trillion in 2017. The most widely manufactured electronic device is the metal-oxide-semiconductor field-effect transistor (MOSFET), with an estimated 13 sextillion MOSFETs having been manufactured between 1960 and 2018. In
3337-488: The four news-producing television stations ( WSB-TV , WAGA-TV , WXIA-TV , WANF ), one for CNN, and another open for other users on request, such as Georgia Public Broadcasting . Traditionally, the Federal Communications Commission has assigned microwave spectrum based on historic patterns of need and through the application/request process. With the other uses of radio spectrum growing in
3408-489: The functions of analog circuits were taken over by digital circuits, and modern circuits that are entirely analog are less common; their functions being replaced by hybrid approach which, for instance, uses analog circuits at the front end of a device receiving an analog signal, and then use digital processing using microprocessor techniques thereafter. Sometimes it may be difficult to classify some circuits that have elements of both linear and non-linear operation. An example
3479-429: The high cost – US$ 1,395 equivalent to $ 10,495 in 2023 for a combination TV/VCR – kept it out of most homes. In 1970, Philips developed a home video cassette format specially made for a TV station in 1970 and available on the consumer market in 1972. Philips named this format " Video Cassette Recording " (although it is also referred to as "N1500", after the first recorder's model number). The industry boomed in
3550-768: The later VHS cassettes, used 3/4-inch (1.9 cm)-wide tape and had a maximum playing time of 60 minutes, later extended to 80 minutes. Sony also introduced two machines (the VP-1100 videocassette player and the VO-1700, also called the VO-1600 video-cassette recorder) to use the new tapes. U-matic, with its ease of use, quickly made other consumer videotape systems obsolete in Japan and North America, where U-matic VCRs were widely used by television newsrooms (Sony BVU-150 and Trinitron DXC 1810 video camera), schools, and businesses. But
3621-466: The mid-1980s, film had all but disappeared from use in television journalism. As one cameraman of the era tells it, One of the very first examples of reliable, news-style video was revealed at the 1968 Democratic National Convention in Chicago. I was a 16mm cameraman at that convention and turned in the street violence one day to eye the first portable " Portapak " video package from Sony in Japan. It
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#17327871280163692-399: The most widely used electronic device in the world. The MOSFET is the basic element in most modern electronic equipment. As the complexity of circuits grew, problems arose. One problem was the size of the circuit. A complex circuit like a computer was dependent on speed. If the components were large, the wires interconnecting them must be long. The electric signals took time to go through
3763-677: The music recording industry. The next big technological step took several decades to appear, when the first working point-contact transistor was invented by John Bardeen and Walter Houser Brattain at Bell Labs in 1947. However, vacuum tubes played a leading role in the field of microwave and high power transmission as well as television receivers until the middle of the 1980s. Since then, solid-state devices have all but completely taken over. Vacuum tubes are still used in some specialist applications such as high power RF amplifiers , cathode-ray tubes , specialist audio equipment, guitar amplifiers and some microwave devices . In April 1955,
3834-432: The news stream. In the United States, there are ten ENG video channels set aside in each area for terrestrial microwave communications. TV Broadcast Auxiliary Services (BAS) Channel A10 (2483.5-2500 MHz) is only available on a grandfathered basis to TV BAS licensees holding authority to use that channel as of July 10, 1985. However, there is no sunset date to the grandfather rights, and continued use of A10 remains on
3905-540: The reverse definition ("0" is "High") or are current based. Quite often the logic designer may reverse these definitions from one circuit to the next as they see fit to facilitate their design. The definition of the levels as "0" or "1" is arbitrary. Ternary (with three states) logic has been studied, and some prototype computers made, but have not gained any significant practical acceptance. Universally, Computers and Digital signal processors are constructed with digital circuits using Transistors such as MOSFETs in
3976-505: The scope of the story, the number of crews vying for position at the story venue (press conference, courthouse, crime location, etc.) can potentially be dozens. Natural disasters, terrorism, death and murder are topics that reside at the top of the news-gathering hierarchy. For instance, in the U.S., the series of events culminating in what would thereafter be known as 9/11 galvanized every news division of every network. "Especially on that first day, you were really just going to whomever had
4047-495: The station where the video is edited for that evening's newscast. At some of these stations, the reporters sometimes even anchor the news and introduce the packages they have shot and edited." Short-form news stories are what local news reporters deliver to their stations. Longer-form stories about the same topics are covered by national or international broadcast news magazines such as Dateline NBC , 20/20 , Nightline , 48 Hours , 60 Minutes and Inside Edition . Depending upon
4118-488: The studio. This portability greatly contributed to the rise of electronic news gathering as it made portable news more easily accessible than ever before. Early portable video systems recorded at a lower quality than broadcast studio cameras, which made them less desirable than non portable video systems. When the Portapak video camera was introduced in 1967, it was a new method of video recording, forever shifting ENG. By
4189-399: The surface of a tape. The presence of moisture between the tape and the rotating head drum increases friction which prevents correct operation and can cause damage to both the recording device and the tape. In extreme cases, if the dew sensor fails to function and stop the video recorder, moisture can cause the tape to stick to the spinning video head. This can pull a large amount of tape from
4260-579: The time videotape technology advanced, the capability for microwave transmission was well established (and used in the 1960s by the BBC's ill-fated Mobile Film Processing Unit). But the convenience of videotape finally allowed crews to more easily use microwave links to quickly send their footage back to the studio. It even made live feeds more possible, as in the police shootout with the Symbionese Liberation Army in 1974. Also in 1974, KMOX ,
4331-513: The world's first commercially successful videotape recorder using two-inch (5.1 cm) wide tape. Due to its high price of US$ 50,000 (equivalent to $ 560,000 in 2023), the Ampex VRX-1000 could be afforded only by the television networks and the largest individual stations. In 1959, Toshiba introduced a new method of recording known as helical scan , releasing the first commercial helical scan video tape recorder that year. It
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#17327871280164402-617: The world's leading source of advanced semiconductors —followed by South Korea , the United States , Japan , Singapore , and China . Important semiconductor industry facilities (which often are subsidiaries of a leading producer based elsewhere) also exist in Europe (notably the Netherlands ), Southeast Asia, South America, and Israel . Videocassette recorder A videocassette recorder ( VCR ) or video recorder
4473-762: The years. For instance, early electronics often used point to point wiring with components attached to wooden breadboards to construct circuits. Cordwood construction and wire wrap were other methods used. Most modern day electronics now use printed circuit boards made of materials such as FR4 , or the cheaper (and less hard-wearing) Synthetic Resin Bonded Paper ( SRBP , also known as Paxoline/Paxolin (trade marks) and FR2) – characterised by its brown colour. Health and environmental concerns associated with electronics assembly have gained increased attention in recent years, especially for products destined to go to European markets. Electrical components are generally mounted in
4544-416: Was done by hand on what was known as " color reversal " film, usually Kodak Ektachrome , meaning there were no negatives . Color reversal film had replaced black-and-white film as television itself evolved from black-and-white to color broadcasting. Filmo cameras were most commonly used for silent filming, while Auricon cameras were used for filming with synchronized sound. Since editing required cutting
4615-490: Was easier to edit , duplicate and distribute. Over time, as editing technology has become simpler and more accessible, video production processes have largely passed from broadcast engineers to producers and writers, making the process quicker. However, initially the ENG cameras and recorders were heavier and bulkier than their film equivalents. This restricted the ability of camera operators from escaping danger or hurrying toward
4686-542: Was first implemented in reel-to-reel videotape recorders (VTRs), and later used with cassette tapes. In 1963, Philips introduced its EL3400 1-inch helical scan recorder, aimed at the business and domestic user, and Sony marketed the 2" PV-100, its first reel-to-reel VTR, intended for business, medical, airline, and educational use. The Telcan (Television in a Can), produced by the UK Nottingham Electronic Valve Company in 1963,
4757-479: Was first to market in November 1975, and was argued by many to be technically more sophisticated in recording quality. In the early 1980s US film companies fought to suppress the VCR in the consumer market, citing concerns about copyright violations. In Congressional hearings, Motion Picture Association of America head Jack Valenti decried the "savagery and the ravages of this machine" and likened its effect on
4828-452: Was happening, bringing the audience into news events as they happened. CNN launched in June 1980, as ENG technologies were emerging. The technology was still in its developmental stages, and had yet to be integrated with satellites and microwave relays, which caused some problems with the network's early transmissions. However, ENG proved to be a crucial development for all television news as news content recorded using videocassette recorders
4899-405: Was still a search-and-rescue mission. It was a very, very complicated day to try to give context to." "There is a hierarchy of news. It's a hierarchy of judgment, I guess. All deaths are equal to the victims and their families. But all deaths are not equal in the calculation of news value." "Feel-good stories" such as the saving of a life, or selfless act of kindness, sometimes make their way into
4970-585: Was the first home video recorder. It was developed by Michael Turner and Norman Rutherford. It could be purchased as a unit or in kit form for £1,337 (equivalent to £35,400 in 2023). There were several drawbacks as it was expensive, not easy to assemble, and could record only 20 minutes at a time. It recorded in black-and-white, the only format available in the UK at the time as color broadcasts were not available until BBC Two began broadcasting in color in 1967. An original Telcan Domestic Video Recorder can be seen at
5041-455: Was the first truly portable video package I had ever seen and it made quite an impression on me while carrying that back breaking film camera. The Sony Portapak was a two-piece, battery powered, self-contained video tape analog recording system that could be carried and operated by one person. Because earlier "portable" television cameras were so large, heavy and cumbersome, the Portapak made it possible for individuals to record video easily outside
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