1G和2G的区别

1G代表第一代， 2G代表第二代是2代手机。 1G是第一代手机，为美国带来了第一次无线通信。

1G 使用副学士学位的模拟信号进行通信，并使用 FDMA 进行信道化。 1G用于口语，1G不提供信息传输服务。 2G是1G的医疗，即它使用数字信号进行通信。 2G使用TDMA和CDMA进行信道划分，提供语音和数字通信服务。

让我们看看下面给出的 1G 和 2G 之间的区别：

S.NO	1G	2G
1.	1G stands for first generation.	While 2G stands for second generation.
2.	1G uses circuit switching.	While 2G circuit switching as well as packet switching.
3.	In 1G, internet is not provided.	While in 2G, internet is provided.
4.	The voice signal of 1G is analog signal.	While the voice signal of 2G is digital signal.
5.	The data services in 1G are not provided.	While in 2G, data services are provided except complex data(videos).
6.	The channelization protocol in 1G is FDMA.	While the channelization protocol in 2G are TDMA and CDMA.
7.	1G was launched in the year 1980.	2G was launched in the year 1993.