Telecommunication

We are behind the curve in keeping up with the global telecommunications revolution,”

Telecommunication is the transmission of information.

Telecommunications has been an important part of our culture since the invention of the telegraph in the 1800s. It started as a form of long distance communication. The telegraph provided a way to send messages to people far away, that was faster than sending mail. Over the course of the last century, telecommunications has taken on a whole new purpose and plays a much bigger role in our everyday lives.

In modern times, telecommunications involves the use of electrical devices such as the telegraph, telephone, and teleprompter, as well as the use of radio and microwave communications, as well as fiber optics and their associated electronics, plus the use of the orbiting satellites and the Internet.
A revolution in wireless telecommunications began in the 1900s (decade) with pioneering developments in wireless radio communications by Nikola Tesla and Guglielmo Marconi. Marconi won the Nobel Prize in Physics in 1909 for his efforts. Other highly notable pioneering inventors and developers in the field of electrical and electronic telecommunications include Charles Wheatstone and Samuel Morse (telegraph), Alexander Graham Bell (telephone), Edwin Armstrong, and Lee de Forest (radio), as well as John Logie Baird and Philo Farnsworth (television).

Telecommunication systems work by transferring signals from different nodes until they reach their destinations.

History

Ancient systems

Greek hydraulic semaphore systems were used as early as the 4th century BC. The hydraulic semaphores, which worked with water filled vessels and visual signals, functioned as optical telegraphs. However, they could only utilize a very limited range of pre-determined messages, and as with all such optical telegraphs could only be deployed during good visibility conditions.

Systems since the Middle

In 1792, Claude Chappe, a French engineer, built the first fixed visual telegraphy system (or semaphore line) between Lille and Paris. However semaphore systems suffered from the need for skilled operators and the expensive towers at intervals of 10–30 kilometers (6–20 mi). As a result of competition from the electrical telegraph,

Types of Telecommunication Mediums

 

Radio

According to WCBN, Guglielmo Marconi built his first radio equipment in 1894, and established the world's first radio link in 1899 between England and France. Radio was the first form of telecommunication that served multiple purposes. It provided radio plays and music for entertainment, and newscasts with up-to-date news and information from around the world.

Telephone

        

 telephone-past                                      present

Since the invention of the telephone, devices have dramatically evolved from relatively primitive tools of communication to state-of-the-art mobile multi-communications sources. Gardiner Hubbard formed the first telephone company, the Bell Telephone Company, in 1877. Today the telephone as evolved into the cell phone and is a one-stop hub for all of our communication needs. Cell phones allow you to connect with people on the phone while you stay on the go.

Television

            

 television-past                                          present

According to The History of Television, a German man named Paul Gottlieb Nipkow developed one of the earliest forms of television. As it continued to evolve, there were two different versions being developed: a mechanical version and an electrical version. The mechanical version would eventually be phased out by the electrical. The electrical version was perfected by a 21-year-old inventor named Philo T. Farnsworth in 1927. Over the years, television has become a giant media empire. Today Television has become such an integral part in every human’s life. Television has totally changed our world.

Internet

The most modern means of communication in today’s world. In 1966, a man named Lawrence G. Roberts began developing the idea for an interconnected computer network. According to the Internet Society, it was in October of 1995 that the Federal Networking Council passed a resolution that defined the Internet as "a global information system that is logically linked together by a globally unique address based on the Internet Protocol." The Internet provides you with the opportunity to fulfill all of your communication needs. You can visit sites and listen to the radio, watch your favorite television shows and movies chat with people in a live video chat and stay connected with relatives via email. With the Internet, people in the world are more connected than ever.  Internet is a boon to man if used in a proper way.

Types of Telecommunications used today

There are two primary types of telecommunication networks used today. A LAN, local area network, which is privately owned and which is used for short distances. A LAN is usually used on college campuses or in business settings. The other type is a WAN, wide area network. WANS generally connect many different LANs and cover a very large area. Telecommunication networks can be owned, shared or leased from other companies. It is very expensive for one entity to supply all of the necessary mediums, such as fiber optics; therefore many networks share or lease lines with each other.

Components of Telecommunication

Components are the most essential parts of any communication systems. A telecommunication system has three main components. The first component is a transmitter which is used to send information. The information is sent in the form of electrical signals through some type of medium which makes up the second vital component. The third component is the receiver. This component receives the transmitted data and converts it into a form that is readable and understood. Computers, fiber optics and telecommunication's software consist of these components.

Digital technology

Telecommunications is being increasingly dominated by digital technology. A digital transmission carries information in the form of discrete packages of ones and zeros. A computer of some sort will then convert this kind of signal into complex digital information. Previous telecommunications technology, such as the radio, used a continuous analog signal that conveyed information by variations, such as its strength. This type of communication was more subject to distortion and noise interference from other sources.

Telecom Software

As the world of telecom is fast moving from proprietary systems to open standard based systems, a lot of intelligence of networks has shifted to software. The phrase "telecom software", that till very recently, meant applications run by telecom service providers on their computing platforms. Telecom software today broadly means anything from embedded software to content.

Broadly, the telecom software can be classified into three areas, not always mutually exclusive. They are—embedded software, system software, and application software that is used by service providers.
One can classify the nature of development of telecom software work into four categories—development of software for technology systems; the service provider onsite practices including development and integration; product development and services centered around products. But among the four categories the emerging areas seem to be service management, software broadband aggregation platforms.
Almost non-existent a couple of years back, a new breed of telecom software product companies are now targeting the emerging application areas like IP QoS, broadband aggregation, wireless-IP integration, etc.
Telecom towers radiation

With growing concerns over the impact of mobile radiation on human health, telecom towers have to reduce electromagnetic radiation.

Dangers of cell towers have been well-documented over the last decade. Cell tower radiation is indeed hazardous, and more and more people are concerned about it.

Although the telecom industry and federal governments maintain there’s no conclusive evidence of health risks of cell tower radiation, literally dozens of studies world-wide consistently warn us about the dangers.

What will it take to Alert People to the Dangers of Cell Towers?

With so much evidence about cell tower radiation health risks, how is it that governments allow cell phone companies to continue to erect more and more cell towers and antennas? One factor, of course, is that although ever-growing numbers of people are voicing concerns about possible health risks of cells towers, most people want good reception on their phones, wherever they happen to be. And competing cell phone companies are very accommodating; they strive to put up as many cell towers and antennas as they can to keep their far-roaming customers satisfied

 Approaches to Minimize the Risks of Radiation

There are several approaches you can take to minimize the risks of living near cell towers:

1. Avoid or minimize your exposure. If you find your home is surrounded by cell towers and moving isn’t an option, you can find some help from specially-formulated EMF protection paint, shielding fabric or shielding glass or tinting for windows.

2. Use EMF protection devices, such as pendants, chips or other protective devices. Good products will ground you into the earth’s electro-magnetic field to strengthen your biofield. This helps to restore cellular function and strengthen your immune system.

3. Reverse the damage that EMFs have already done. Do this through nutritional support, such as with anti-oxidant supplementation, which can counteract the effects of free radicals caused by EMF exposure.

4. The minimum distance of a tower (with two antennas) should be 35 meter from a residential building.

What are the advantages and disadvantages of telecommunication?

Advantages:
Quick and accessible communication
Lack of travel time
Saves time
Saves gasoline (do not have to drive distance)
More than two people can communicate to one another at the same time
Next "best thing" to being there
Easy to exchange ideas and information via phone and/or fax
World Wide access
Disadvantages:
Remote areas do not have access
Remote areas may not be able to afford necessary equipment
Cannot see whom you are speaking with
Cannot see facial expressions, therefore leads to misunderstandings
Cultural barriers
Poor connections or downed power lines during/after storms

Hazardous effects on public health by telecom towers

Communication in the Future

Communication has grown significantly over the past decades. The world was once unable to carry on conversation using voice telephones. Just as people once rode horses instead of driving vehicles, communications have improved drastically over the years.  

The inceptions of the cellular telephone, wireless internet and other technologies have given people the ability to contact and communicate with others from virtually anywhere in the world and at any time

Communication is a major topic in society. With the many steps that have been taken to bring the world the communication devices of today, it stands to reason that as more and more researchers and scientists work to develop newer devices, the technology of the future could be quite substantial.
Conclusion

Telecommunications have changed the world. The increasing globalization that has spread to almost all parts of daily life is very much a result of the improvement in telecommunications technology. Understanding the basics of telecommunication will help you to better understand the way that the modern world is being changed every day by this technology. People around the world have been brought closer to each other through telecommunications as the planet becomes a "global village." Let’s take this analogy one step further and deduce the future of telecommunications. If computing is embedded in everything and connectivity becomes everywhere, then we can imagine a world in which communication devices are less visible and information flows less intrusively.

If we look at telecommunication, the primary intent has been to communicate across a distance.