The Evolution of Cell Phones
This is by far is one of the greatest evolutions in our human history. The evolution of cell phones has forever shaped the way we communicate. Even the ideal of cell phone evolved, what once started out once as a luxury and what seem like the look for the privileged now seems like an almost certain necessity in our society. And with the evolution of the phones becoming “smart phones” it is as if the phone is a part of your existence because of everything it can do. You can check your bank account, secure your home, start your car, store family photos, and many other things. The possibilities for the cell phone seem virtually endless as to what they can do.
In The Beginning
On June 17th 1946 in Saint Louis, Missouri a group engineers from Bell Labs began work on a system to allow mobile users to place and receive telephone calls from automobiles, leading to the induction of mobile service. AT&T offered Mobile Telephone Service a short time later in 1947. They were very bulky and costly however. A wide range of mostly unsuited mobile telephone services offered only a limited coverage area and only a few available channels in urban areas. The introduction of cell phone technology allowed the re-use of frequencies many times in small neighboring areas covered by relatively low powered transmitters, made widespread implementation of cell phones making it economically feasible for the telephone market.
By 1967, cell phone technology was available. However, the user had to stay within one cell area. Cell areas that a base station serviced were unable to hand off telephone phone calls from one base station to another. While users could make a phone call, they were unable to continue the call after they reached a set range. In 1970 an engineer at Bell Labs, Amos Edward Joel developed the call handoff system. This technology facilitated phone calls from one area to another that would not be dropped.
The First Generation of Cell...