In fact, mobile phones have significant history regarding to its development. At first, the mobile phones technology was used in trains throughout Europe during the 1950s. Then it was getting more common as radio communication in taxicabs and emergency vehicles in US. Most of the mobile phones had great size, weight and these were highly cost. It was started to become popular until FCC approved it in 1982.
Speaking of the function of the first generation of mobile phones, there was only an analog transmission cell phone or 1G. The whole protocol transmission the phones used was determined by the FCC regulations based on the bandwidth usage. Thus, the FCC gives the restriction regarding the frequencies allowed to be used by certain licensed company.
The development of the mobile phones was occurring at the same pace in all over the world especially in Japan and Europe. In 1979, cell phones were firstly launched in Japan, far long before the mobile phone entered the US market. Finally, the mobile phones were launched in US by the American company, Motorola. Moreover, the Japan and Europe also took the 3G phone standards faster than US in 2000s.
On the old days, mobile phones were big and heavy, the size was getting to shrink down in the late of 1980s. Afterward, the much smaller mobile phones became popular and common in 1990s. The development happened along with the addition of new features such as note-taking, personal organization, and email.
Furthermore, the text message service was also becoming available in 2G mobile phone in the early 1990s. Today, mobile phones have become the greatest means of technology to enable the real time communication with the family or friends.