 |
| GRAHAM BELL |
 |
| Samuel Morse |
 |
| Sir Rowland Hill |
 |
| hieroglyphics |
Communication |
The oldest known symbols created with the purpose of communication through time are the cave paintings |
A Graphic symbol that represents an idea or concept is called as Ideograph |
The Egyptians had their own set of symbols to keep track of trade They developed a system of writing known as hieroglyphics |
Hieroglyph script was developed about four thousand years before Christ and there was also a decimal system of numeration up to a million. |
Egyptian hieroglyphics consisted of two types of symbols: ideograms and phonograms. Ideograms evolved from pictographs and were symbols of both objects and ideas |
The earliest known journalistic product was a news sheet circulated in ancient Rome and called the Acta Diurna |
Cuneiform script is one of the earliest known forms of written expression |
The cuneiform writing system was in use for more than 35 centuries, through several stages of evolution, from the 34th century BC down to the 1st century AD |
In greek 500 BC developed a system to communicate from one city to another city that system is called as Visual telegraph |
The visual Telegraph was by building a series of brick walls with indentations at the top. Each indentation represented a letter of the Greek alphabet. To send a message, people lit fires at the appropriate spots to send express a message. A watcher at the next wall would resend the message to wherever it needed to get to |
PAPYRUS: is a tall, aquatic reed plant, Cyperus Papyrus, noted especially for its use for ancient writing material. The papyrus plant, so abundant in ancient Lower Egypt |
Coranto is a term used to describe early informational broadsheets precursors to newspaper |
In the English-speaking world, the earliest predecessors of the newspaper were corantos, small news pamphlets produced only when some event worthy of notice occurred. |
By December 1620, Corantos (single folio sheets) of news about the wars in Europe, printed in English, were making their way across the English Channel from Holland. |
The formal study of language began in India with Panini the 5th century BC grammarian who formulated 3,959 rules of Sanskrit morphology. |
When writing evolved in the human world, communications came into existence. Postal services long existed in China since 4000 BC. Millennium later, Egypt and Assyria had their postal services. |
The Chinese and Egyptian services were confined to imperial court circles, but in Assyria the service was open to the mercantile class. |
Historical references to postal systems in Egypt dated from about 2000 BC |
The two Greek historians, Herodotus and Xenophon, wrote the detailed descriptions about the postal network. |
Rowland Hill formulated proposals on reforming the modern postal system between 1835 and 1837. |
A telegraph is a device for transmitting and receiving messages over long distances, i.e., for telegraphy. |
Beginning in 1836, the American artist Samuel F B Morse the American physicist Joseph Henry and Alfred Vail developed an electrical telegraph system. |
The Morse code was developed so that operators could translate the indentations marked on the paper tape into text message |
Morse code is a method of transmitting textual information as a series of on-off tones, lights, or clicks that can be directly understood by a skilled listener or observer without special equipment |
The first successful submarine telegraph was laid between Dover and Calais, a distance of twenty-four miles, in 1850 |
The transatlantic telegraph cable was the first cable used for telegraph communications laid across the floor of the Atlantic Ocean in 1866 from Ireland to Canada |
Alexander Graham Bell being awarded the first US Patent for the telephone in 1876 |
Collected by S Jayachandran , System Administrator , Mavelikara Postal Division , 9961464279 Please visit http://nfpemavelikaradivision.blogspot.com |
No comments:
Post a Comment