How can you differentiate between 2G 2.5 g and 2.75 g technology of mobile communication?

2G bumped speeds up to 0.1 Mbps , and allowed multiple users on a single, secure channel. The real game-changer came with the advent of 3G, which took mobile networks and data use to a new level.

Second generation wireless telephony technology (2G) refers to telecom network technologies that were launched on the Global System for Mobile Communications (GSM) standard in 1991 by Radiolinja in Finland .

2.5G describes the state of wireless technology and capability usually associated with General Packet Radio Services (GPRS) – that is, between the second and third generations of wireless technology.

It is an enhancement of GPRS and stands for Enhanced Data Rates for GSM Evolution. As in the case of 2.5G (GPRS), data is transmitted via the 2.75G (EDGE) network in small packets. The difference is that 2.75G delivers much faster data connectivity as the result of greater spectral efficiency .