Presentation on theme: "TELEPHONES By: Shelby S. Thompson Date: September 18, 2009 Class: Technology Period: 8/9."— Presentation transcript:
TELEPHONES By: Shelby S. Thompson Date: September 18, 2009 Class: Technology Period: 8/9
Telephones (noun) are electronic communication device that are use to contact and speak to somebody. WHAT IS A TELEPHONE?
Most children had string of thread between two empty soda cans and inserted their own communication. By the early 1900s the telephones was already considered a most individual device that ever been used for mankind entertaining tool. Technology has advanced to the point where cellular telephone services is an everyday part of life. HOW THE TELEPHONE WAS ORININALLY MADE?
THE INVENTION OF TELEPHONES In the late 1940s when mobile phone was in its early stages of process a two-a-way radio using one side to transmit to send users voice back and fourth. Telephones all in less than 20yrs; makes cell phones one of the worlds most popular inventions could modify both walking and sleeping electrical activity of a human brain.
There comes a time where everyone should know that who had created the invention of telephone; in the very beginning? Well there is only one inventor who has created the most famous technology of telephones. And his name was Alexander Graham Bell. WHO INVENTED THE 1 ST TELEPHONE?
Alexander Graham Bell was an American Inventor and Teacher of the Deaf (unable to hear) very much known as the very 1 st inventor of telephone technology. Alexander was born in March 13, 1847 in Scotland and educated at the Universities of Edinburgh and London. Since he was 18; Bell had been working on the idea of transmitting speech. In 1884, while working on a multiple telegraph, he developed basic ideas for the telephone. His experiments with his assistant Thomas Watson finally proved successful on March 10, 1876. He improved the results with the series of experiments over the next few months. That day; he transmitted sound clearly over a wire between Cambridge and Salem, Massachusetts. This design, used for both the transmitter and the receiver, became standard for the commercial instruments introduced in 1877.
In 1977, two communication companies AT&T and Bell Labs, began changing experimental telephones into cell phones. Five years Later; the latest figures were costing more than 400 million cell phone users worldwide. With more than 250,000 added everyday, a stark contest to the mere 11 million users in 1990. Technology has advanced to the point where cellular telephone service is an everyday part of life. In Europe; many people only have a cellular phone. In the United States, Cellular telephones allow people to take calls anywhere and be connected 24-hours a day.
The telephone continues to control popular culture. Many companies spend millions of dollars in marketing each year. And, as result; these companies have some of the strongest brand names in the world. With over 2 million shareholders, AT&T has always been one of the most widely held stocks in the world. However; unlike many other large corporations, AT&T, due to Bells original invention; has become a fixed part of American popular culture.