Mobile Phone Generations

As mobile communication has evolved in 1920's but the implementation came to existence form 1946

so as the research work was added new features and QoS of mobile communication has been added
so their are two types of communication

half duplex:A half-duplex system provides for communication in both directions, but only one direction at a time (not simultaneously).

full duplex:A full-duplex, or sometimes double-duplex system, allows communication in both directions, and, unlike half-duplex, allows this to happen simultaneously.

so based on the features added the generations of mobiles has been classified
1G,2G,3G
G:-Generations