Each Generation is defined as a set of telephone network standards , which detail the technological implementation of a particular mobile phone system . The speed increases and the technology used to achieve that speed also changes.
Read moreWhen was mobile communication introduced?
The first handheld cellular mobile phone was demonstrated by John F. Mitchell and Martin Cooper of Motorola in 1973 , using a handset weighing 2 kilograms (4.4 lb). The first commercial automated cellular network (1G) analog was launched in Japan by Nippon Telegraph and Telephone in 1979.
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