1g meaning

(1) (1st Generation) A 1G denotes the first generation of something, such as 1G cellular was the first implementation of the cellular phone system. See cellular generations.
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The first generation of wireless technology, which began in the late 1970s and lasted throughout the 1980s. These wireless communications systems used analog voice technology in comparison to 2G (second generation) digital technology. 3G (third generation) technology is wireless technology that allows for transmission of data images and Internet access.
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In cellular radio, referring to analog systems such as Advanced Mobile Phone System (AMPS), Narrowband AMPS (N-AMPS), Nordic Mobile Telephone (NMT), and Total Access Communications System (TACS). See also 2G, 2.5G, 3G, AMPS, analog, cellular radio, N-AMPS, NMT, and TACS.
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