The technological innovations that led to mobile phones were first developed in the late 1940s and 1950s. Unfortunately, FCC regulations were too restrictive at the time, which hampered the marketability of the product. Mobile phones began begin sold to the market from 1973, but were still uncommon for many years. Many people could not afford to purchase mobile phones at the time, nor were people interested in buying the large and unattractive mobile phone. From the mid 1980s, the FCC approved commercial cellular phone service, and gradually larger numbers of people began buying and using mobile phones worldwide.
Analog transmissions were only allowed for the first generation (1G) of mobile phones. The first mobile phone in the United States was introduced by Motorola, an American company. Second generation (2G) mobile phones began using digital transmission, and were popular from 1990. Digital transmission then allowed mobile phone to send and receive SMS text messages. Third generation (3G) mobile phone took speed from the 2000s, and mobile phone continue to develop with new enhancements and cheaper costs.
August 3rd, 2011 at 9:57 am
Youre so cool! I dont suppose Ive learn something like this before. So good to seek out anyone with some authentic ideas on this subject. realy thank you for beginning this up. this web site is one thing that is wanted on the web, somebody with slightly originality. useful job for bringing one thing new to the web!