GSMErika Takeuchi7.10.10

What is it?

Global System for

Mobile Communications

1982 1991

4.3 billion

212 countries/territorie

s

GSM vs. CDMA

Why is it important?

SIM card

1. Consumers2. Network operators

SMS

Credits http://en.wikipedia.org/wiki/GSM http://www.gsmworld.com/ http://en.wikipedia.org/wiki/GSM_services http://

weblogs.baltimoresun.com/business/consuminginterests/blog/apple-iphone.jpg

http://www.saidaonline.com/en/newsgfx/simcards1.jpg http://

www.cartoonstock.com/newscartoons/cartoonists/rma/lowres/rman740l.jpg

http://www.wpparadio.com/radio_tower.gif