mobile cell phones

Children today consider wireless phones as necessary and usual in daily life. They do not know a time without them being prevalent. But that was not the case in 1973 when Martin Cooper made his first cell phone call on a street in New York and New Yorkers opened for him. But the story begins cell phone further back in time.
The history of cell phones or wireless communications must start with Samuel Morse. It introduced the concept of technology wireless by conduction when transmitting a telegraph signal through water. The telegraph was the first device to transmit messages by electricity.
Then in 1843 a man by the name of Michael Faraday studied to see if space could conduct electricity. In 1865, a dentist, Dr. Mahlon Loomis was the first person to communicate through wireless via the atmosphere. He got the idea to transmit and receive messages through the atmosphere as a director conductor and sending up kites covered with copper screens that were linked to the ground with copper wires. Loomis, received a research grant of $ 50,000 by Congress.
But let's move into the twentieth century and the invention of the cell or cell phone as we know it today. This leads to a man often referred to as the father of cell phone, Martin Cooper. He was hired by Motorola and has worked to develop the first handheld radios made for the police department Chicago in 1967. He went on to lead Motorola's cellular research.
AT & T Bell Laboratories introduced the idea of cellular communications in 1947. Through the 60's and 70's from Motorola and Bell Labs were in a race to incorporate technology into portable devices.
On 3 April 1973 Martin Cooper won the race when he placed the first cell phone call to his rival AT & T. Motorola introduced the 16-oz "DynaTAC" phone into commercial service in 1983 at a cost to consumers of $ 3,500. She weighed 2.5 pounds. took 10 hours to charge with 35 minutes of talk time. Features are limited to dial, listen and speak. This is commonly known as the brick.
In 1977 cell phones became public. Chicago was the first city to mobile test cell with 2000 clients.
In 1983, Motorola, with the assistance of Martin Cooper, presented the 16-oz "DynaTAC" the first truly mobile phone laptop. This phone took 15 years and a cost of over $ 100 million to market. The cost to the consumer was $ 3500. She weighed 2.5 pounds., It took 10 hours to charge and allows 35 minutes of talk time. Features are limited to dial, listen and speak.
From 1983 to late 1980 "s 1st generation of mobile phones or car, as it often is called became very popular. Most were not handheld, but rather installed in cars or phone bag.
In 1988 he founded the CTIA (Cellular Technology Industry Association).
In the early 1990s the second generation or 2G phones came out. They were able to work on GSM, TDMA, CDMA and technology. 2G networks are digital and online replacing the analog frequencies making them practically obsolete. The phones became much smaller and portable and use skyrocketed.
Currently the third generation or 3G phones are the technology available today. 3G phones include innovations that allow them to get more than telephone calls. For example, the Internet access and email capability and video streaming.
In December 2005 the U.S. wireless industry over 200 million subscribers. In 2006 that number grew to 233 million subscribers with 12.8% of households totally wireless. There are 195,613 cell sites making this possible.
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Article Source: ArticlesBase.com - Mobile Cell Phone History - Communication Technology
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