Samsung Galaxy S

Caractéristiques et spécifications

 

 Samsung Galaxy S - Le Samsung Galaxy S a une Super écran tactile de 4,0

pouces AMOLED capacitif qui prend en charge 16 millions de couleurs. Il

a un appareil photo de 5MP avec auto-focus et donne une résolution d'image

de 2592 x 1944 pixels. L'appareil est livré avec une RAM de 512 Mo et un

espace mémoire de stockage de 8 GB/16GB. 

Samsung Galaxy S - Caractéristiques et spécifications

 

The History Of Telecommunications Tulsa OK

By Marci Glover


In the olden days, communication between two people required them to be within each others visual sight or audio range. Other forms of communication included smoke and drum beating. In late 1830s and early 1840s, Telecommunications Tulsa OK, was born which invented new and speedy ways of communication among people.

The new methods of communication that were invented were telephony, telegraphy as well as electronic mails among others. This involved transmission of electric signals through metallic cables over long distances. These cables were first laid to link the USA and the Great Britain passing through sea beds. These new methods were revolutionary in nature since they changed the communication industry completely in the entire globe at that time.

The reason behind a communication system linking the USA and The Great Britain was to facilitate easy and quick communication between the president of the USA and the queen of England at the time was President James Buchanan and Queen Victoria. Communication between the two leaders was deemed very vital and thus a quick link between them had to be put in place.

These cables however failed quickly and could not offer reliable form of communication between the USA and the Great Britain, which was heartbreaking owing to the huge investment that had been undertaken. More needed to be done in this area to ensure success in this area, and so the two countries remained committed to ensuring the communication link was up and running. It was until the year 1956 that the telephone link between the two countries was successfully set up.

A rather interesting form of communication invented by a French man known as Claude Chappe was designed to transmit messages from one place to another rapidly in the year 1792. The system involved setting up of a number of towers that were six miles apart. Operators located on top of these towers would receive a message and transmit it to the next tower. The transmission of messages was mainly through use of semaphores. The system lasted only up to 1880 when it was rendered obsolete by the now powerful telegraph system.

The first commercial electrical wire based telegraphs was invented in the year 1839 by Sir William Fothergil Sir Charles Wheatstone, which was an improved version of the already existent electromagnetic based telegraphy.

The communication industry had clearly taken the right for takeoff because new and ingenious communication method came along rapidly. In the early 20th century, wireless forms of communications were discovered which made it possible for people to communicate over great distances without necessarily having a physical link between them such as the copper cables. The first version of wireless communication was invented by Nobel laureate Guglielmo Marconi, which involved use of radio waves.

As is evident, the communication industry has come a long way to get to its present status where it has literally reduced the world to a global village. This has been only possible because of the selfless and determined nature of the early scientists whose work was used as a basis of developing more sophisticated methods of communication.




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