What is 2G - Definition?

2G is the short form of second generation wireless mobile network technology. 2nd generation or 2G cellular telecom networks were commercially launched on the GSM standard in 1991. Main benefits of 2G were that conversations were digitally encrypted, it was more efficient than its predecessors. Must know fact about 2G is that it introduced data services for mobiles starting with SMS.

0-9
1080p | 1G | 2G | 3G | 4G | 5G | 802.11
A
A-GPS (Assisted GPS) | A2DP (Advanced Audio Distribution Profile) | AAC (Advanced Audio Coding) | Airplane Mode | AMOLED display (Active-matrix organic light-emitting diode) | aptX | Auto Focus
B
Band | Benchmarking | Bluetooth | Browser
C
Capacitive Touchscreen | CDMA (Code-Division Multiple Access) | Corning Gorilla Glass | CPU (Central Processing Unit)
D
DLNA (Digital Living Network Alliance)
E
EDGE (Enhanced Data rates for GSM Evolution)
F
Fixed Focus | Flight mode
G
GPS (Global Positioning System)
H
HDR
I
IP Ratings
N
NavIC | Near Field Communication (NFC)
O
Optic AMOLED | Optical image stabilization
R
RAM (Random-Access Memory)
S
SMS (Short Messaging Service) | Stylus | SVGA (Super video graphics array)
T
TFT (Thin Film Transistor)
U
UI (User Interface)
V
VGA (Video Graphics Array)
X
Xenon flash