1G stands for first-generation and 2G stands for second-generation are the 2 generations of mobile phones. 1G is the 1st generation of mobile phones that brought 1st wireless communication to the United States. 1G uses associate degree analog signal for communications and uses FDMA for channelization. 1G is employed for spoken language, informat...
1G was never widely used as a term to describe wireless phone technology until 2G was available. It is the first generation of wireless telephone technology. These are the analogue telecommunications standards that were introduced in 1979 and the early to mid-1980s.