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Engineer Dr. Martin Cooper and his team created a working mobile phone prototype the first ever call was made in New York City
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10 years later or a decade the first mobile phone dubbed Motorola DynaTAC 8000X was approved by the federal communication commision
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Sony and it's engineer Asahi Kasei commercialize a light weight and rechargeable lithium-ion batteries
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IBM engineer Frank Canova created a "smartphone" prototype with a code name sweet pot this was considered to be the first true true smartphone
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IBM Simon personal communicator a refined version of Canova's prototype. It had a touchscreen and users could not only take phone calls but could receive emails too.
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3 years and it was used by Swedish telecommunications giant Ericsson to describe it's new mobile device called GS88
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This is the first commercial phone called Kyocera Visual phone this phone was released in Japan. It had a front facing camera
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The J-SH04 released by sharp and it was sold in Japan. It was considered the first mass-market camera phone.
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Us electronics company Qualcomm invented and tested live assisted GPS
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The T - mobile G1 It had a touch screen QWERTY keyboard and internet access the phone slid to reveal the keyboard.
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A Swedish company Telia Sonera had released for a 4G commercial use. This was about 10 times faster than 3G
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Verizon rolled out the first 5G network in the world