What are the various generations of cellular wireless network?

The first commercially automated cellular network (the 1G generation) was launched in Japan by Nippon Telegraph and Telephone (NTT) in 1979, initially in the metropolitan area of Tokyo.

3G, 4G and 5G are the 3rd, 4th and 5th generations of cellular technology , respectively. The difference between each generation primarily comes down to their capabilities. For example, each generation has made improvements to: Speed (lower latency) Network volume (higher bandwidth)

The first- generation (1G) systems are voice-oriented analog cellular and cordless telephones. The second-generation (2G) wireless networks are voice-oriented digital cellular and PCS systems and data-oriented wireless WANs and LANs.