Cell Phone Usage Against GDP Income
The beginning history of cell phones is based upon radio technology that was developed from the
1940's onward. For instance the beginning of cell phones can be traced to the innovation in taxi cabs, police cars and other service vehicles where two way radios were used to communicate with one another or with a central base. Early cell phone communication technology could be even traced back to individuals with special radios that can patch into a phone line via live operator to make a phone call.
The first official mobile phone was used in Sweden by the Swedish police in 1946 (Wikipedia).
The technology was connected to the telephone network and was distinctive of two way radio technology.
However, the phone was not very practical and it was only able to make 6 phone calls before the battery was drained. The technology of cell phone was available and slowly developed after the end of World
War II through the 1960s, 1970s, and 1980s.
In graph 1 , although some countries had GDP income more than 4000 dollar per person annually the graph shows that there is no sign of cell phone usage either in developed (rich) nations or developing or under develop (poor) nations. Some countries in the world during this period were busily preparing and developing their economy, setting up their infrastructures and focusing on human capital development, while others involved in tragic wars such as in Korea, Vietnam, Middle East and in Africa. The two super power and their allies (Russia and United States) involved in a cold war which almost brought the two giants and rest of the world in the brink of the Third World War. Because of wars and the need for security, most of the rich nations built technology for military communication and espionage purposes on their enemies. Better communication tools and technology were improved, and satellite systems were built and launched. Those enhancements in communication and technology was later became the basic foundation of today’s cell phone communication systems.
Graph 1
After series on improvement and enhancement in communication technology, in 1985 or to a much later year (in 1983), was the beginning of the cell phone usage to the general public. People in countries like Norway (1.5), US (.14), Finland (1.4), Singapore (.15), Israel (.33) and Denmark (0.9) showed a significant growing number of cell phone users and started to enjoy this new found facility. See

graph 2 . The first type of mobile phone was first unveiled by Motorola in 1983, and was the first truly portable cellular phone. It was called the Motorola DynaTAC 8000X (tech-faq.com).
Graph 2
In the US, in 1982, the Federal Commission Communication (FCC) allocated the frequencies of
824-894 MHZ Band to Advanced Mobile Phone Service (AMPS). From 1982 to 1990, AMPS was an analog service, Digital AMPS came online as of 1990 (Wikipedia) and the changes and improvement of analog to digital system was later boosted the use of cellular communication all over the world, see graph
3 and 4 .
Graph 3

Graph 4
Today there are millions of customers with cellular phones, even though the wireless service was just invented nearly 25 years ago. The cellular business was a small million business years ago and has grown significantly to a more than 100 billion dollar industry yearly (Wikipedia) and it keeps on growing.
Because of the stiff competitions among the cell phone manufacturers, the cheap cost of producing cell phones and communication systems, this communication technology has been made affordable to people even to a country with GDP slightly over 400 US dollar per person yearly. See graph 5 .
Graph 5