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                                                                                                                    What is a Smartphone? smartphone is a portable device that combines mobile telephone and computing functions into one unit. They are distinguished from feature phones by their stronger hardware capabilities and extensive mobile operating systems, which facilitate wider software, internet and multimedia and functionality, alongside core phone functions such as voice calls and text messages. Smartphones typically contain a number of metal oxide semiconductor integrated circuit chips, include various sensors that can be leveraged by pre -included and third -party software and support wireless communications protocols. Early smartphones were marketed primarily towards the enterprise market, attempting to bridge the functionality of standalone personal digital assistant devices with support for cellular telephone , but were limited by their bulky form, short battery life ,sl