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1 G
1G was first introduced to the citizens of Tokyo. By 1984, the first generational network covered all of Japan, making it the first country to have 1G service nationwide.
March 6, 1983, that Ameritech introduced 1G.
Cellphone prototype was made in 1973 , Motorola introduced the first commercially available cellphone to the public in 1983 -the DynaTAC.
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2 G
2G launched on the Global System for Mobile Communications (GSM) in Finland during 1991. 2G provided some significant mobile talk advancements, introducing encrypted calls, also allowed us to transfer bits of data from one phone to another, we could communicate by introducing text messages (SMS), and more.
The most popular phone in this era was Nokia.
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3 G
Deployed for the public in Japan by NTT DoCoMo in 2001. 3G had 4 times the data transferring capabilities reaching up to 2 Mbps on average. What made 3G revolutionary, though, was the ability to surf the internet and stream music on mobile. Although 2G did offer the same features, they weren’t as advanced as what 3G had in terms of download speed.
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4 G
Introduced for commercial use in Norway near the end of 2009, 4G offered today’s standard services.
Starting at a minimum of 12.5 Mbps, 4G provided high-quality video streaming/chat, fast mobile web access, HD videos, and online gaming. Compared to a simple SIM card switch from 2G to 3G, mobile devices needed to be specifically designed to support 4G.
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5 G
South Korea was the first country to offer 5G The latency over 5G is incredibly reduced, which increased faster download and upload speeds. 5G’s average latency is expected to be about . 5G also has a larger bandwidth size (between 30GHz and 300 GHz), supporting more technologies and more devices.
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