Mobile Phones

Mobile Phones

Did you know that the cell phones have a longer history then the radio? Yes, the radios were first introduced in 1921 but the technology for the cell phones is traced back to 1920. Police used some of the cell phone features on their radios back in the 1940s.

In 1947 the idea of the cellular phone was developed as a mobile car phone. The concept of the cellular phone was produced by Bell Laboratories (also known as AT&T Bell) they introduced the cells for mobile phone stations. A device that converts light energy into electrical energy was developed by Russell Ohl. When trying to eavesdrop on the conversation there was a buzzing hornet sound and because of this the prototype was called Green Hornet. A long history of Motorola making automotive radio as two-way radios for taxicabs and police is amazing. In 1973 the actual cell phone was invented by Martin Cooper and other assisting inventors of Motorola. The "radio telephone system" is what it was called

While people were walking on a New York City street in 1973, Cooper made the first portable call on a cell phone. A prototype called Motorola DynaTac was used. Joel Engel was the person he made the call to. From this, the technology and communications market shifted from the place and to the person.

In Chicago 1978, the first commercial cellular network using the AMPS (Advanced Mobile System) was introduced. The mobile phone was known as analog. In North America the analog mobile phone system became the one used and ans is still widely available but to various digital standards being introduced is has become less desired.

The public was introduces to the large and expensive cellphone in 1984 when it made its presence. Towers war built by the cooperation of AT&T and the FCC. Something know as a "cell" or an area was created by the towers and covered a few miles. What was great was that the towers were able to transfer calls from each other.

Just another view, the GPS Cell phone is widely being known today.

http://wwwcellphones-mp3.com - Ray Sabo

About the Author

The history of the cell phone is amazing. They have advanced so far that there is a prepay mobile phone today.