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Alexander Graham Bell is commonly credited as the inventor of the telephone, though many individuals contributed to the devices we use today.

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The concept of the telephone dates back to the non-electric string telephone that has been known for centuries, comprising two diaphragms connected by a wire. Many experimented with this concept, but it was Bell who filed the patent in for an "apparatus for transmitting vocal or other sounds telegraphically". The device weighed 46 lbs and sent digital versions of documents through phone lines via a series of dial tones. The fax machine allowed people to send documents across the world in a matter of minutes, replacing courier mail services and telegrams.

They tend to be triggered by a phone call and are most often worn at the hip. The wearer will respond to a signal by looking at a small screen on the device for an important message, which is usually in numeric code. In , Motorola produced the first cellphone which weighed 4. ICQ was the first stand-alone instant messenger. The idea of a centralized service with individual user profiles paved the way for later instant messaging services. In fact, Americans spend approximately 6 minutes per day talking on the phone, but more than 26 minutes texting. Originally, we had to type out each and every letter according to the numerical keypad on our mobile devices.

Then, with the advent of T9, texting speeds increased. Android and iOS devices today offer touch screen keyboards with predictive text and autocorrect capabilities that make it easier than ever to communicate. The history of messaging. Smoke Signals Smoke signals are a form of visual communication that can travel over long distances and are one of the oldest forms of long distance communication.

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Carrier Pigeon Carrier or homing pigeons are birds that have been bred to find their way home over long distances. Message in a Bottle In the 16th century it was common practice in the military to send information by dropping bottles into the sea. Telegrams In , two sets of inventors simultaneously developed an electrical telegraph: Wheatstone and Cooke in England, and Samuel Morse in the United States.

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Balloon Mail Balloon mail refers to the transport of mail by an unmanned helium or hydrogen-filled balloon. Telephones Alexander Graham Bell is commonly credited as the inventor of the telephone, though many individuals contributed to the devices we use today. Alexander Graham Bell held the master patent for the telephone that was needed for such services in both countries.

Credit for the invention of the electric telephone has been frequently disputed, and new controversies over the issue have arisen from time-to-time. As with other great inventions such as radio, television, the light bulb, and the digital computer , there were several inventors who did pioneering experimental work on voice transmission over a wire , who then improved on each other's ideas. Telephone technology grew quickly after the first commercial services emerged, with inter-city lines being built and telephone exchanges in every major city of the United States by the mids. Despite this, transatlantic voice communication remained impossible for customers until January 7, when a connection was established using radio.

However no cable connection existed until TAT-1 was inaugurated on September 25, providing 36 telephone circuits. In , Bell and co-inventor Charles Sumner Tainter conducted the world's first wireless telephone call via modulated lightbeams projected by photophones. The scientific principles of their invention would not be utilized for several decades, when they were first deployed in military and fiber-optic communications. The first transatlantic telephone cable which incorporated hundreds of electronic amplifiers was not operational until , only six years before the first commercial telecommunications satellite, Telstar , was launched into space.

Over several years starting in , the Italian inventor Guglielmo Marconi worked on adapting the newly discovered phenomenon of radio waves to telecommunication, building the first wireless telegraphy system using them. In , Japanese engineer Kenjiro Takayanagi began a research program on electronic television. In , he demonstrated a CRT television with thermal electron emission.

History of communication

On March 25, , Scottish inventor John Logie Baird publicly demonstrated the transmission of moving silhouette pictures at the London department store Selfridge's. Baird's system relied upon the fast-rotating Nipkow disk , and thus it became known as the mechanical television. In October , Baird was successful in obtaining moving pictures with halftone shades, which were by most accounts the first true television pictures. His invention formed the basis of semi-experimental broadcasts done by the British Broadcasting Corporation beginning September 30, Such a television was produced by Philo Farnsworth , who demonstrated crude silhouette images to his family in Idaho on September 7, Though the execution of the device was not yet what everyone hoped it could be, it earned Farnsworth a small production company.

In , he gave the first public demonstration of the television at Philadelphia's Franklin Institute and opened his own broadcasting station. After mid-century the spread of coaxial cable and microwave radio relay allowed television networks to spread across even large countries.

The development of videotelephony involved the historical development of several technologies which enabled the use of live video in addition to voice telecommunications. The concept of videotelephony was first popularized in the late s in both the United States and Europe, although the basic sciences to permit its very earliest trials would take nearly a half century to be discovered.

Getting the message. A history of communication.

This was first embodied in the device which came to be known as the video telephone , or videophone, and it evolved from intensive research and experimentation in several telecommunication fields, notably electrical telegraphy , telephony , radio , and television. A number of organizations believed that videotelephony would be superior to plain voice communications.

However video technology was to be deployed in analog television broadcasting long before it could become practical—or popular—for videophones. In this context knowledge is not the level of education. It is the clarity of the information which sender wants to convey to the receiver.

Getting the Message: A History of Communications by Laszlo Solymar - gyqacyxaja.cf

Familiarity with the subject of the message makes it easier to understand it. Values, beliefs, religion, laws, rules and general understanding of society affect the sender's way of communicating the message. The step of creating a message also called encoding is the transformation of thoughts into words that sender sends to receiver.

It can be in the form of voice, audio, text, video or other media.

Can You Hear Me Now?

Any message comprises the following elements:. Channel refers to the medium used to send the message. In mass communication technical machines might be used as a channel like telephone, internet, etc. But in general communication, the five senses of a human being is the channel for the communication flow and it affects the effectiveness of the channel:. Receiver is the person who gets the message and tries to understand what the sender actually wants to convey and then responds accordingly.