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A Brief History Of Touchscreen Technology: From The IPhone To …
Smartphone - Wikipedia
Who Invented Smartphone? Unraveling the History of Mobile …
From touch displays to the Surface: A brief history of touchscreen ...
When Was the First Smartphone Invented? - How-To Geek
Smartphone history - The first smartphone - SimpleTexting
IBM created the world's first smartphone 25 years ago
Which Was the First Touchscreen Smartphone [Fact Checked]
What Was The First Smartphone? - YouTube
Smartphone History: From the First Smartphone to Today