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Race to create portable cellular devices
This began after WWII. -
AT&T commercialized Mobile Telephone Service
Was a rarity. There were only 5,000 customers, who made about 30,000 calls each week. Calls were set up manually by an operator. (Date is not exact- it was in 1949 however.) -
Martin Cooper made first mobile cell phone call
Cooper, a Motorala researcher and executive, made a call to Dr. Joel S. Engel. Phone was the size of a shoe box. -
1G introduced in US
First automatic analog cellular system. Consumer demand was strong. -
2G launched in Finland
Used digital instead of analog transmission to make the system work faster. Text messaging was created with the 2G. -
3G was launched in Japan
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Smart Phone Invented
It could send and recieve emails. However it did not have speakers or a microphone. -
Apple releases iPhone
Featured a touch screen and could do everything a computer could do. -
4G introduced
Changes from the 3G- eliminated circuit switching (used all-IP network).
