The television is an electronic device covered with a metal layer that has been designed as a receiving medium for electromagnetic waves that serves to receive and send images and sound over a distance.

This electromagnetic wave system works with different supports such as radio, cable or satellite that works in an open or closed way. The open system receives images from channels sponsored by the national media while the closed system allows you to obtain national and international channels.

What is television for as a means of communication?

The television is a means of communication that serves to inform, entertain and educate. This is why it has become a world power as it connects millions of individuals and their ideas through a digital device.

In addition, the television serves to inform millions of users of national and international political events at the touch of a button. It also serves to present a variety of programs that are of interest to many users. The TV is also a very useful tool to educate, since it constantly transmits a diversity of lifestyles and cultures from all over the world.

Evolution of the television

The television has its beginnings thanks to scientific inventors who made great contributions in the 20th century, but it was not until 1925 when John Logie Baird made a public demonstration where he premiered televised silhouette images in motion, all this happened in the city of London using a “Nipkow disk”

This type of television was of mechanical origin and over the years more types of televisions came out, since the television revolution became a worldwide movement and a source of motivation for corporations and more scientists who wanted to continue modifying this technological device.

Television functions

The television is an invention that is made up of three parts:

The television camera : collects simultaneous audio and photographs that can be told videos via electromagnetic waves.

Television transmitter : these electromagnetic waves are then proceeded to a signal that is emitted and received by a television transmitter. This transmitter works just like a radio, that is, these signals are sent through the air.

TV receiver : the receiver is responsible for receiving electromagnetic waves to process them into a series of images and audio that can be perceived and heard through the device.

Types of television that exist

Mechanical televisions: it was the first type of commercial televisions between the years 1928-1934. They were basically radios attached to a television screen with neon tubes behind a rotating disk with a spiral of openings.

Electronic televisions – it is similar to the mechanical television, however, its function depends significantly on the implementation of cathode ray tubes. They appear for the first time on the market in Germany in 1934.

Color televisions: this is a television system that transmits an image in the three primary colors: red, blue and green. However, this technology produced poor quality images and turned out to be impractical like the images produced by black and white televisions. From the fifties, it is when this technology is improved and finally commercialized massively.

Digital televisions: like the color television, digital television turned out to be revolutionary since it would replace the analog transmission mode completely from 2009 where the previous technology would almost completely cease to exist.

Smart TVs : this TV is the combination of a digital one that has been incorporated with computational capabilities and all that this entails. Internet connection, cloud access, application center, among others.

This makes the magnificent fusion between image quality and accessibility to the web, positioning them in the models most used by users. Some smart TVs include LCD and LED.

3D TVs: it is the next model to the smart one, although it is a sophisticated model, it is used especially for watching movies. Users for this type of television confirm that it is more satisfactory to see images in two dimensions than in a 3D image.

3D televisions have 4 different types of technologies:

  • Anaglyph : Work with 3D color glasses to perceive a three-dimensional image.
  • Polarizing: the lenses used filter light waves that give each eye a different perspective to see a 3D image.
  • “Active-Shutter”: the lenses used have liquid crystals that open and close quickly, in rapid alternations, so that both eyes see different images.
  • Lenticular: it is the only one of the four technologies where the person does not need to wear glasses since the television screen itself contains a row of plastic lenses that curve along the length of the screen.

 Characteristics of television as a mass communication medium

  • Audiovisual : allows the user to experience emotions through the interpretation given to these images, thus creating memorable moments.
  • Domestic: at least 1 television is becoming part of the comfort of the homes of millions of families by allowing them to spend time together exploring recreational, cultural and educational programs.
  • Immediate witness : the user can observe in real time an event that is occurring kilometers away from their location.
  • Educational: forges values ​​and accompanies the child in emotional and motor growth through programs that promote intellectuality.
  • Political: it is a great means of communication since it is used as a source of knowledge for authority figures and thus generate votes among television users.
  • Cultural: through the screen millions of inhabitants of different cultures meet, a little thanks to movies, series and news that they can see day after day.

Importance of television in society

This device is of importance for the inhabitants of the world since it is the object with the most accessibility not only in terms of costs, but also because it is the means that takes into account verbal and non-verbal language the most to transmit a message and information to users. viewers.

Taking into account verbal and non-verbal language means that more users who see these images through the screen, can reach more immediate information in their lives.

How to make the most of television

If you have control and monitoring of how to maintain the proper use of the device, great qualities can be obtained within family members, such as:

Negotiation : living together is a negotiation and that is why it is necessary to implement television use schedules as well as to be used as a reinforcer to finish other activities in daily life.

Dialogue : observing an educational or cultural program between family and friends can generate great conversations that can be positive among members.

Sharing: the TV is always a useful tool for sharing, therefore, it encourages family and social bonding.

Lets set the example : if the adult instills respect and good values ​​in children and adolescents, the probabilities that they will repeat the actions carried out in some television programs decrease.

Advantages of using television

  • It is the immediate information channel that connects you with events inside and outside your locality.
  • It allows you to enrich the language since there are several programs with different languages ​​that are presented on the television screen.
  • It is a distracting medium, which in addition to relaxing from stressful events in your life, is an activity that you can share as a family.
  • Most of the programs are up-to-date, which allows the user to be aware of current content.

Disadvantages of using television

  • It can be a problem for children and adolescents if an adult is not monitoring the programs that the child is watching in front of the screen.
  • Causes sight damage if observed too frequently.
  • It limits people from contact with the outside world if it does not control the frequency of its use.
  • You can incite violence before the resolution of conflicts learned by observing the image transmitted by the television.

Conclusion on the use of television

It can be concluded then that this ingenious device has revolutionized the world thanks to the different themes that are used and reproduced in the same device, the functionality of the television has promoted in the users who choose it, heterogeneity in terms of different cultures, language and information.

That is why despite the criticism it continues to occupy the first place around the world, and that is because its multifunctionality continues to arouse interest in people.

Samantha Robson
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Dr. Samantha Robson ( CRN: 0510146-5) is a nutritionist and website content reviewer related to her area of ​​expertise. With a postgraduate degree in Nutrition from The University of Arizona, she is a specialist in Sports Nutrition from Oxford University and is also a member of the International Society of Sports Nutrition.

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