Incredibly, the basic idea of the cell phone has been for decades. In the nineteenth century, scientists used the ground to send and receive communications. It was at the beginning of the mobile phone. However, it was not until 1973 that the first call was made from mobile phones.
In 1947, AT & T and Bell Labs requested that the Federal Communications Commission allocate more radio broadcasts to the radio so that the use of the mobile phone could become more extensive. FCC rejected, and then only limited frequency was available. This meant that only about twenty-three conversations could occur simultaneously in the same service area. It was not worth a business and time investing in technology when it was not used in a broader way.
Fortunately, the FCC decided to allocate higher rates for mobile phone usage in 1968. This was the actual beginning of mobile phone use. Several small power tower signals. Each party reached the radius for a few miles and calls could jump between turns if they left the stage. Mobile research could now start as they did with 2000 Chicago users in 1977. Mobile phones have evolved from bulky, car phones to small phones that we can fit in our palm.
Mobile phones will not be as common or popular until the decades, but they have been working for decades. Now, in addition to making a call, you can take pictures, listen to music, go online, send files and much more. You can find out whose phone number look up and communicate with others. Mobile phones have been one of the most important innovations in the past century and will overheat change the way people interact with each other in a variety of ways.
Source by Susan Mona