A mobile phone (or cellphone) is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a ...
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A smartphone is a mobile device that combines the functionality of a traditional mobile phone with advanced computing capabilities. It typically has a ...
The history of mobile phones covers mobile communication devices that connect wirelessly to the public switched telephone network. A man talks on his mobile ...
A mobile device or handheld computer is a computer small enough to hold and operate in the hand. Mobile devices are typically battery-powered and possess a ...