GSM- Global System Module
MMS-Multimedia Messaging Service
SMS- Short Messaging Service
1G
In first generation v cld make call and we could use sms service
1.5G
In this v coul call,sms,mms with others and in this generation the user could hear frequency modulation(FM) this makes the user to hear FM at any time...
2G
This generation had attracted the user to listen to it. in this generation many features had been added such as inter connection of network nothing but internet,camera,music player it changed the life and in this generatio had made user to attract on it....this generation is known as GPRS
2.5G
There is upgrade in the speed of 2G net. this is EDGE n there is upgrade in clarity of the camera
3G
In this generation the internet connection is given through frequency this is known as UMTS
3.5G
This generation made to download and upload the datas at lightning speed this is named as HSDPA
4G
This generation is named as Long Term Evolution LTE in this there is high pixel camera resolution
On comparing all generation there is the gap between 10 yrs
2G-1991
3G-2001
4G-2011
GPRS-General Pocket Radio Services
UMTS-Universal Mobile Telecommunication System
LTE-Long Term Evolution
Still more updates on this generation of mobiles
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