WHAT ARE TELECOMMUNICATIONS? Importance and characteristics

WHAT ARE TELECOMMUNICATIONS? Importance and characteristics

The concept of telecommunications It is used for all transmission and reception of signals made of any kind. We share what telecommunications are, their importance, characteristics and more.

What are telecommunications?

The telecommunications they are all kinds of transmission and reception of signals, which in most cases are electromagnetic, which contain images, sounds, signs and in general any type of information that is used for communication at a certain distance.

For a matter of metonymy, in turn, the discipline that has been formed for the design, study, development and operation of the systems through which it is possible that these communications are referred to as telecommunication. Likewise, in an analogous way from the telecommunications engineer the resolution of the technical problems that are linked to that discipline is sought.

Importance of telecommunications

For the current context the importance of telecommunications It reaches levels never seen before, since it is even conceived as a basic infrastructure for the context of society. Just think about the key that results be able to communicate almost any political or military order instantly and at a distance.

In that order of ideas, for the Contemporary Age Telecommunications are important in multiple facets with economic and social factors of great relevance. It is worth thinking that it is these telecommunications that enable the emergence of concepts such as globalization, the information and knowledge society, among others.

On the other hand, the mass media rely on telecommunications to share the public, and to give a clear example of its importance, it is only necessary to think of the internet as the current maximum exponent of these characteristics.

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Evolution of telecommunications

  • Electrical advances It occurs during the nineteenth century with the formal discovery of the transmission of electricity. In other words, the electrical signals were key at this time to consolidate future inventions.
  • Telgraph In 1837 the first patent was filed outside the laboratories. It was the beginning of large-scale data transmission.
  • Phone In the nineteenth century it was one of the most successful inventions and is still used today.
  • Submarine cables For the last third of the nineteenth century it was marked by the international cooperation of communication. It was a bit with simple transmission means of iron or copper, but that began to interconnect the world.
  • Radio communication Form of communication that occurs through radio waves or hertzian waves, which is also characterized by the movement of electric and magnetic fields. The first practical communication system was given in 1901 when making the first transatlantic radioelectric emission.
  • Internet Its origin dates back to 1969, but in its WWW form or world Wide Web, that is to say, the remote consultation of archives, was given as a later development for the year 1990. It marks the birth of the internet as a means of transmission.
  • Cell phone Wireless communication medium thanks to electromagnetic waves. Since the year 2000 its functionalities have been potentiated that are not only limited to calling.

Telecommunications Examples

  • Television: It is the best known example of telecommunication on the planet, it is an electromagnetic wave reception device through antennas or of cables or the same internet. You can learn about the television history here
  • Radio:It was one of the first telecommunication devices of the modern world and currently operates in 2 bands, the AM and the FM.
  • Phone: Without hesitation it is the most used means of communication and they have an infinite number of functions that are increasing day by day.
  • Internet:It is a network with a large amount of information that is stored on servers. Except for computer security exceptions, this information is accessible to society. You can know more about the difference between internet and intranet.
  • Fax: This peripheral output It is losing a lot of ground day because it is an expensive element, with little security and that today was replaced by other systems such as electronic mail.
  • Radio Frequency: A system that today is being used a lot for aesthetic medicine that works by means of electromagnetic radiation that heats the skin, promoting growth and remodeling.

Base Telecommunications System

  • Emitters Part of the system that encodes and issues the message.
  • Receivers It is the device that can receive the message and extract data from it.
  • Transmission medium Physical support in which the information is transmitted. It can be wired or wireless.
  • Repeaters Devices with which the received signal is amplified, so they can establish long-distance communications.
  • Switches Device to route each network frame to the destination within a computer network.

It may interest you:SWITCHING OF CIRCUITS AND PACKAGES | Examples and techniques

  • Routers In English is router. It allows the most relevant path for network frames to be chosen at all times and to reach their destination on a network with TCP / IP support.
  • Filters Device that allows the passage of certain frequencies of the signal and also prevents that of others.

Means of transmission of telecommunications

Around the means of transmission of telecommunications are classified by wired media and the wireless media. Each group has its advantages in terms of not requiring a wiring and therefore gain in portability (wireless) or stability (wired).

Frequencies used in telecommunications (radiofrequency only)

Characteristics of telecommunications

  • World character – Telecommunications usually include several passes and that is why they are international in scope
  • Innovative character – Year to year the new technologies that are surpassing that of previous years are growing.
  • Capacity – It consists of the amount of bps (information transmission unit) that can be transported.
  • Performance – It consists of the effectiveness of the transmission in which the number of wrong bits is taken into account compared to the bits transmitted correctly.
  • Distance – It is the longest length that the signal can reach without having a means of repeating it.
  • Security – It consists of the fidelity of telecommunication and the vulnerability it may have.