EVOLUTION OF TELEVISION
EVOLUTION OF TELEVISION
The television counts among a handful of technology designs that have changed the most from a design and system standpoint since the middle of the 20th century. As this illustrated poster by a Reddit user shows, the design has changed (and gotten better) very impressively since the boxy and retro looking machines of the 1960s. With flatscreens and high definition displays that can seem crisper and more colorful than reality itself, 21st-century viewers are pleasantly spoiled with advancements in technology.
The modern television’s earliest model was the Octagon, made by General Electric in 1928. It used a mechanical, rotating disc technology to display images on its three-inch screen.
Soon, this technology changed (and got better) into commercially available home TV sets, (easy to find, purchase, use, and understand. First, televisions were only available as fancy toys for the wealthy. Designers soon started to realize what television broadcasting was becoming, and advertisers try to maximize the technology’s access to consumers. In ways that may now seem dated: as the 1936 Cossor Television was advertised to consumers in a small newspaper ad: “Radio: its thrills, its interests, increased one hundred times with the advent of television. Radio was blind no longer. “The most exciting running explanation and statement of opinions is made extremely more thrilling when you can SEE too!” The Cossor came in a wooden cabinet, its screen hidden by doors when not in use. A design feature that was mostly retired in later designs, were round screens, seen in the 1940’s Raytheon TV, and the built in legs seen on sets in the 50s, 60s, and 70’s.
How TVs have changed through the decades
Television sets themselves have changed a lot in the previous hundred years. What began as a large box with three channels and grainy images has changed (and gotten better) to high-definition flat screens with a exponentially growing variety of content. Streaming providers like Netflix and Amazon Prime continue to change the way people consume media. “Technology doesn’t decide how we consume content, but it does offer visual glimpses of the world and the solar system that we live in.
Early in 2021, Apple has unveiled plans to become a major player as a Streaming Content Provider and plans to rival NetFlix, Hulu, and Roku.
Often manufacturers who design television broadcast technologies incorporate new model design from how people already use TV.”
The Origins of Television
Inventors understood and created the idea of television decades before the technology to manufacture it was invented. Early pioneers guessed that if sound waves could be modulated (related to spectrum to create radio, so too could TV signals be modulated to transmit visual images. As early as 1876, Boston government worker George Carey imagined complete television systems, putting forward drawings for a “selenium camera” that would enable people to “see by electricity” a year later (Federal Communications Commission, 2005).
During the late 1800s, a few technology developments related to computers and science set the stage for television. The invention of the cathode ray tube (CRT) by German physicist Karl Ferdinand Braun in 1897 played a very important role as the predecessor of the TV picture tube. At first created as a scanning device known as the cathode ray oscilloscope, the CRT effectively combined theories of the camera and electricity. It had a fluorescent screen that emitted a visible light (in the form of images) when struck by a beam of electrons. The other key invention during the 1880s was the mechanical scanner system. Created by German inventor Paul Nipkow, the scanning disk was a large, flat metal disk with a series of small holes/openings arranged in a spiral pattern. As the disk rotated, light passed through the holes, separating pictures into pinpoints of light that could be transmitted as a series of electronic lines. The number of scanned lines equaled the number of holes/openings, and each rotation of the disk produced a television frame. Nipkow’s mechanical disk served as the foundation for experiments on the transmission of visual images for at least 20 years.
In 1907, Russian scientist Boris Rosing used both the CRT and the mechanical scanner system in an experimental television system. With the CRT in the receiver, he used focused electron beams to display images, transmitting very simple and rudementary geometrical patterns onto the television screen. The mechanical disk system was used as a camera, creating a very simple television system.
The Introduction of Cable Television
Ted Turner’s superstation WTCG launched the first basic cable network in 1976. As the demand for more channels grew, so did cable subscriptions. Cable television can carry far more radio frequency channels than broadcast television, which opened a future niche for specialty channels. During the 1980s through 1990s, many of the networks we recognize today began popping up like Disney, HBO, Movies, Showtime, Starz and much more.
With the introduction of more channels and subscription services came a standard cable box. We still see the same type of boxes present in today’s subscription television services; however, todays models are far more advanced than those from long ago.
VCR
As the 1970s and 1980s approach, we get into ten years that most of us remember. Video stores began to appear in the 1970s and were set up to provide movie content on a mass scale for people with VCRs, and allowed you to watch tapes on demand.
You might remember having all of your favorite videos offered on Betamax, which became no longer useful and no longer used since the VCR. While Beta offered a better product, VHS was easier to build since it featured an open format.
DVD
Just as video tried to kill the radio star, DVD killed the VHS. Ten years after DVD players were introduced to Americans, approximately 80 percent of households upgraded to this must have electronic device. But alas, DVD’s fall in popularity is likely just around the corner.
Analog to Digital
The transition to digital televisions began in the late 2000s, as the government shutdown analog broadcasting by 2010. The government made this requirement to help benefit public safety by freeing up communication bandwidth for emergency responders, who use analog systems. Additionally, digital systems offer a better picture, enhanced sound quality, and more programming channels.
Introducing Streaming and Video on Demand (VOD)
It is expected that streaming and VOD will eventually replace DVDs. Whether it is Roku, Google, Western Digital, or Apple, these boxes allow consumers (who use a product or service) to easily stream movies directly to their television set.
VOD makes it even easier to stream movies, as cable companies include these types of services in bundled packages. During the year 2012, people (who use a product or service) spent more than $1.3 billion ordering Video on Demand movies and TV services.
The biggest benefits of Video on Demand are that it’s convenient, people can watch movies on their schedule, and it allows content to be delivered in a safe, yet effective manner.
Many providers offer free streaming on smart devices: such as computers, tablets, and Smartphones, which makes it quite easy to browse and watch movies while traveling via airport or to entertain children while taking a road trip.
Reference Sources : networkworld.com
open.library.umn.edu , homesc.com, supertechpro.com
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