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Millions of people around the world use cellular phones. They are such great gadgets -- with a cell phone, you can talk to anyone on the planet from just about anywhere!

These days, cell phones provide an incredible array of functions, and new ones are being added at a breakneck pace. Depending on the cell-phone model, you can:

Store contact information
Make task or to-do lists
Keep track of appointments and set reminders
Use the built-in calculator for simple math
Send or receive e-mail
Get information (news, entertainment, stock quotes) from the Internet
Play simple games
Integrate other devices such as PDAs, MP3 players and GPS receivers
But have you ever wondered how a cell phone works? What makes it different from a regular phone? What do all those confusing terms like PCS, GSM, CDMA and TDMA mean? In this article, we will discuss the technology behind cell phones so that you can see how amazing they really are.

It is now possible to locate a person using a cellular phone down to a range of a few meters, anywhere on the globe.

Do cellular phones cause cancer?
Studies indicate that cell phones emit minute amounts of radiation. This normally would be largely irrelevant, except that this radiation is in such close proximity to your head. It hasn't been proven that using a cell phone can cause cancer. However, there is enough evidence that you should at least be aware of the possibility that the radiation could be harmful if you are exposed to it for long periods of time



history of cell phone

In today's world, most people communicate through the use cellular phones. It's hard to believe that fifteen years ago cell phones were a rarity. Below is a history chronicling the dawn of the cell phone to its current state.

1843 - A skilled analytical chemist by the name of Michael Faraday began exhaustive research into whether space could conduct electricity. Faraday exposed his great advances of nineteenth-century science and technology and his discoveries have had an incalculable effect on technical development toward cellular phone development.


1865 - Dr. Mahlon Loomis of Virginia, a dentist, may have been the first person to communicate through wireless via the atmosphere. Between 1866 and 1873 he transmitted telegraphic messages at a distance of 18 miles between the tops of Cohocton and Beorse Deer Mountains, Virginia. He developed a method of transmitting and receiving messages by using the Earth's atmosphere as a conductor and launching kites enclosed with a copper screens that were linked to the ground with copper wires. Congress then awarded Loomis a $50,000 research grant.

1973 - Dr Martin Cooper, is considered the inventor of the first portable handset. Dr. Cooper, former general manager for the systems division at Motorola, and the first person to make a call on a portable cellular phone.

1973 - Dr. Cooper set up a base station in New York with the first working prototype of a cellular telephone, the Motorola Dyna-Tac. Mr. Cooper and Motorola took the phone technology to New York to show the public.

1977 - Cell phones go public. Public cell phone testing began. The state of Chicago was were the first trials began with 2000 customers, and eventually other cell phone trials appeared in the Washington D.C. and Baltimore area. Japan began testing cellular phone service in 1979.

1988 - this year changed many of the technologies that had become typical in the past. The Cellular Technology Industry Association (CTIA) was developed to lay down practical goals for cellular phone providers. This included research for new applications for cell phone development. A new standard was placed with the creation of the TDMA Interim Standard 54, in 1991 by the Telecommunications Industry Association.

In spite of the unbelievable demand, it took cellular phone service 37 years total to become commercially accessible in the US. According to the Cellular Telecommunications Industry Association, today there are more than 60 million customers with cellular phones, even though wireless service was just invented nearly 50 years ago. The cellular business was a $3 million market 25 years ago and has grown increasingly to close to a $30 billion per year industry.