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A Brief History Of Touchscreen Technology: From The IPhone To ... - Forbes
Who Invented Smartphone? Unraveling the History of Mobile …
Smartphone - Wikipedia
When Was the First Smartphone Invented? - How-To Geek
From touch displays to the Surface: A brief history of touchscreen ...
IBM created the world's first smartphone 25 years ago
Smartphone History: From the First Smartphone to Today
Timeline: A History Of Touch-Screen Technology - NPR
The Brief History of Smartphones - ThoughtCo
First Smartphone: Fun Facts About Simon | TIME