Data Access GPRS,EDGE, NFC in Smartphones

GPRS (General Packet Radio Service): 
      GPRS refers to wireless data services. GPRS data networks enable users to access Web data and multimedia contents from their phones.

EDGE (Enhanced Data for Global Evolution):

      EDGE service over three times faster than GPRS. EDGE phones will automatically revert to the slower GPRS standard when EDGE service is not available. EDGE is faster than GPRS, but not as fast as 3G technologies such as HSDPA

Bluetooth:

       Bluetooth is a wireless protocol technology that connects electronic devices while they are close to each another.

WLAN (Wireless Local Area Network):

       It’s a wireless version of LAN which connects to a local area network via a wireless connection. WLAN technology is generally faster than 3G mobile technologies, but with much shorter range.

NFC (Near Field Communication):

       NFC-equipped smartphones and other devices can exchange information with each other with a simple tap.