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Friday 21 December 2012

GSM, 3G, Edge, WIFI, GPS

GSM: (Global System for Mobile Communications: originally from Groupe Spécial Mobile) is the most popular standard for mobile.


3G stands: for 3rd-generation mobile technology. The services associated with 3G provide the ability to transfer both voice data and non-voice data. 3G brings wireless transmission speeds, which allow full motion video, high-speed internet access and video-conferencing. 


Edge means: Enhanced Data rates for GSM Evolution (EDGE) is a digital mobile phone technology which acts as a bolt-on enhancement to 2G and 2.5G GPRS networks. It can carry data speeds up to 384 kbit/s in packet mode and will therefore meet the International Telecommunications Union's requirement for a 3G network.

WIFI:  wireless local area network: a local area network that uses high frequency radio signals to transmit and receive data over distances of a few hundred feet; uses ethernet protocol)

GPS: (a navigational system involving satellites and computers that can determine the latitude and longitude of a receiver on Earth by computing the time difference for signals from different satellites to reach the receiver)



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