In the early 1980s, 1G was introduced as voice-only communication via “brick phones”. Later in 1991, the development of 2G introduced Short message service (SMS) and multimedia massaging service (MMS) capabilities, allowing picture messages to be sent and received between phones. In 1998, 3G was introduced to provide faster data-transmission speeds to support video calling and internet access. 4G was released in 2008 to support more demanding services such as Gamming service, HD Mobile TV video confercing, and 3D TV. 5g technology has been planned for the upcoming future.
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