1G : The first generation of wireless communication technology. It employed analogue signals for data transmission. 2G : The second generation of wireless communication technology. Analogue signals are converted to digital signals for transmission. GSM is a 2G technology protocol. 2.5G : This wireless communication technology indicates a generation that is faster than 2G communication but not as fast as 3G communication. GPRS technology is an example. 3G : The third generation of  wireless communication technology, which offers high speeds of data transmission. The HSUPA and WCDMA are considered 3G technology standards. 3.5G : An enhancement to the 3G technology. HSDPA is a 3.5G...

At the time of its advent, the mobile phone that could help people make or receive calls as well as deal with messages was held in high esteem. Apart from its utility, the cost of the handset and the service (SIM) as well, helped it occupy that level. Today, the scenario has changed considerably. An average mobile phone no more is a luxury device, instead has come down a long way to become an inevitable part of human lifestyle. However, still the consumer has the option of costlier models, the criteria for which lie scattered in a range,...