Development of mobile devices begins with the analog telecommunications standards that were introduced in 1979. The First generation 1 G (1984) - mobile phones (called mobiphones) are used to connect via an analogue voice-only connection.
They have limited service range. The Second Generation 2G (1991) - introduces the use of GSM (Global Service for Mobile Communications) through digital systems, adds the ability to send MMS, use mobile internet, and more.
Third generation 3G (2002) - Universal wireless connectivity systems that offer a wide range of multimedia, video calling, high-quality Internet access are used.
Fourth Generation 4G (2010) - Provides wireless connectivity over long distances to different devices, with data rates faster than 3G networks. A Fifth Generation of mobile communications is proposed for 2020, which is supposed to be faster and more reliable.